Automatic Transaxle - af33-5 - Overhaul Chevrolet Equinox I

Fastener Tightening Specifications

Fastener Tightening Specifications

Sealers, Adhesives, and Lubricants

Sealers, Adhesives, and Lubricants

Fluid Capacity Specifications

Fluid Capacity Specifications

Shim Size Specifications

Front Differential Side Gear Shim (88)

Front Differential Transfer Drive Gear Thrust Bearing Washer (264)

1-2 Reverse Internal Gear Shim (596)

Forward/Direct Clutch Housing Thrust Bearing Race (628)

Transmission Clearance Specifications

Transmission Clearance Specifications

Clutch Assembly Specifications

Scheme 80

Servo Pin Selection

Scheme 81

Race and Bearing Specifications

Scheme 82

Scheme 83

Scheme 84

Scheme 85

Scheme 86

Scheme 87

Scheme 88

Scheme 89

Scheme 90

Scheme 91

Scheme 92

Scheme 93

Scheme 94

Scheme 95

Scheme 96

Scheme 97

Scheme 98

Scheme 99

Scheme 100

Scheme 101

Scheme 102

Scheme 103

Scheme 104

Torque Converter Assembly Removal

1. Remove the torque converter assembly.
2. Inspect the torque converter assembly for the following: External damage Metal particles found after flushing the oil cooler and the cooler lines External leaks in the hub weld area The torque converter pilot is damaged or fits poorly into the crankshaft Internal failure of the stator roller clutch Contamination from the engine coolant Excessive end play

Holding Fixture Installation

Tools Required

1. J 3289-20 Holding Fixture
2. J 45159 Holding Fixture. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Install the body of the J 45159 with the two long bolts (1) to the transaxle. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. Loosely install the arm and bolt (2) to the J 45159 body. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. Install the arm with the provided shorter bolt (3) to the transaxle. Tighten: Tighten the J 45159 to 25 N. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .m (18 lb ft) starting with bolt (3).
4. Install the J 45159 in the J 3289-20 . See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

Draining Transmission Fluid

1. Place a suitable fluid collection pan under the transmission assembly.
2. Remove the drain plug.
3. Remove the gasket (820) from the drain plug (819).
4. Drain the automatic transmission fluid into the collection pan.
5. Remove the collection pan and properly dispose of the transmission fluid.
6. Remove the vent hose assembly and retainer.
7. Remove the bolt (825) for the transmission level indicator.
8. Remove the transmission oil level indicator (823) and the O-ring (824).

Output Speed Sensor Removal

1. Remove the output speed sensor bolt/screw (61).
2. Remove the output shaft speed sensor (62) and the O-ring (63).
3. Inspect the output speed sensor for damage.

Input Speed Sensor Removal

1. Remove the input speed sensor bolt (72).
2. Remove the input speed sensor (73).
3. Remove the input speed sensor O-ring (71).

Park/Neutral Position Switch Removal

1. Using a screwdriver, bend any tabs from the park/neutral position switch lock tab washer down from the park neutral position switch nut.
2. Remove the park/neutral position switch nut (78), lock tab washer (77) and flat washer (74).
3. Remove the park/neutral position switch bolt (79), stud (76) and flat washers (69).
4. Remove the park/neutral start position switch (75).

Control Valve Body Cover Removal

1. Remove the 9 control valve body cover Torx bolts (28).
2. Remove the control valve body cover (29). Do not bend the cover flange.

Wiring Harness Removal

1. Disconnect the wiring harness connectors 1-8.
2. Remove the fluid temperature sensor bolt (31).
3. Remove the fluid temperature sensor clamp (49).
4. Remove the fluid temperature sensor (36) and the O-ring (32) from the control valve body assembly.
5. Remove the wiring harness (33) from the automatic transmission wiring harness clip.
6. With a twisting motion remove the complete wiring harness assembly.

Control Valve Body Assembly Removal

1. Place the transmission in Neutral (N).
2. Remove the 2 control valve body bolts/screws (30), control valve body fluid passage cover (37) and gasket (38).
3. Remove the six 10 mm control valve body mounting bolts/screws (1-6).
4. While holding the control valve body assembly, disconnect the manual shift detent lever assembly (710) from the manual valve link (336).
5. Move the detent lever assembly clockwise for ease of removing the manual valve.
6. Remove the control valve body assembly (39).
7. Remove the 2 case fluid passage seals (86).

Tools Required

J 45053 Universal Clamp Press

1. Rotate the transmission assembly so the fluid pump is facing up.
2. Remove the 8 fluid pump bolts.
3. Using J 45053 , remove the fluid pump assembly from the transmission case.

Scheme 105

Remove the 2nd coast clutch hub/outer race and 2nd coast clutch hub (11) and washer (226).

Torque Converter Housing Removal

1. Remove the 17 torque converter housing cover bolts/screws.
2. Using a plastic hammer if needed, remove the torque converter housing assembly.

Front Differential Assembly Removal

1. Remove the front differential assembly (13).
2. Remove the case fluid passage gasket (89).

Fluid Filter Removal

1. Remove the fluid filter retaining bolt/screw (43).
2. Remove the fluid filter (42).

Transmission Fluid Baffle Removal

1. Remove the 3 transmission fluid baffle bolts/screws (45).
2. Remove the automatic transmission fluid baffle (44).
3. Inspect the automatic transmission fluid baffle and the bolts/screws.
4. Remove the 2 automatic transmission case fluid passage cover bolts/screws (41).
5. Remove the automatic transmission case fluid passage cover (40).

J 28585 Snap Ring Remover

1. Remove the 2 third gear band apply retainer bolts/screws (50).
2. Remove the third gear band apply tube retainer (51).
3. Using J 28585 , remove the third gear band apply tube (52) and O-ring (53).

Manual Shift Detent Lever and Park Pawl Removal

1. Lift the manual shift detent spring (711) off of the manual shift detent lever assembly (710) to disengage the park pawl actuator rod (709) from the manual shift detent lever assembly (710).
2. Remove the manual shift detent lever assembly (710) from the transmission case assembly.
3. Remove the park pawl actuator rod (709) from the transmission case assembly.
4. Remove the manual shift detent lever spring bolt/screw (712) and the park pawl actuator bracket bolt/screw (715).
5. Remove the manual shift detent spring assembly (711) from the transmission case assembly.
6. Remove the park pawl shaft (700).
7. Remove the park pawl spring (701).
8. Remove the park pawl actuator bracket (708) and park pawl (702).
9. Remove the park pawl spring pin (703).
10. Remove the park pawl bolt/screw (706).
11. Remove the park pawl pin spring guide sleeve (705).
12. Remove the park pawl pin spring (704).

J 45053 Universal Clamp Press

1. Remove the front differential transfer drive gear thrust bearing assembly (263) from the front differential transfer drive gear assembly (14).
2. Remove the front differential transfer drive gear thrust bearing washer (264) from the front differential transfer drive gear assembly (14).
3. Using J 45053 , remove the front differential transfer drive gear assembly (14) from the transmission case assembly.

Third Gear Band Servo Piston Pin Measurement

1. Mark the servo piston pin in the released position (1).
2. Apply compressed air to the servo apply passage (3), and mark the apply position on the piston pin (2).
3. Measure the distance between the release and apply marks (a). Refer to «Third Gear Band Servo Piston Pin Selection»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul) to select the correct servo piston pin.

Scheme 106

Remove the 4-5 clutch assembly (15) from the transmission case assembly.

DT-47599 Anchor Bolt Socket. See Special Tools .

1. Using the DT-47599 remove the third gear anchor bolt (64) with the o-ring seal (65). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. Remove the third gear band assembly (16) from the transmission case assembly.

1-2-Reverse Carrier Gear Assembly Removal

1. Remove the 1-2 reverse carrier thrust washer (590).
2. Remove the 1-2 reverse carrier gear assembly (591).
3. Remove the other 1-2 reverse carrier thrust washer (590).
4. Remove the 1-2 reverse internal gear front thrust bearing assembly (593).
5. Remove the 1-2 reverse internal gear (594).
6. Remove the 1-2 reverse internal gear shim (596).
7. Remove the 1-2 reverse internal gear rear thrust bearing assembly (595), from the 1-2 reverse internal gear (594).

Third Gear Band Servo Piston Assembly Removal

1. Rotate the transmission assembly so the rear case cover assembly is facing up.
2. Remove the third gear servo cover retaining ring (60) from the transmission case assembly (17).
3. Remove the third gear band servo cover (59) from the transmission case assembly.
4. Remove the 2 O-ring seals (58) from the third gear band servo cover (59).
5. Remove the third gear band servo piston assembly (57).
6. Remove the third gear band servo compression spring (56).

Case Cover and 1-2 Reverse Clutch Assembly Removal

1. Remove the 12 transmission case cover bolts/screws.
2. Remove the transmission case cover and 1-2 reverse clutch assembly (19) with a plastic hammer if needed.
3. Remove the 5 case fluid passage seals (86) from the transmission case.

J 28585 Snap Ring Remover

1. Remove the lube fluid pipe retainer bolt/screw (83).
2. Remove the lube fluid pipe retainer (84)
3. Remove the lube fluid pipe (85) with J 28585 .
4. Remove the forward and direct clutch assembly (23).

Rear Internal Gear and Front Carrier Removal

1. Remove the input shaft thrust bearing (540).
2. Remove the rear sun gear assembly (539).
3. Remove the front sun gear thrust bearing race (546).
4. Remove the rear sun gear thrust bearing (538).
5. Remove the rear sun gear thrust bearing race (537).
6. Remove the rear internal gear (536).
7. Remove the rear internal gear thrust bearing (535).
8. Remove the front carrier thrust bearing race (543).
9. Remove the front sun gear thrust bearing (545).
10. Remove the front carrier and sun gear assembly (24).

J 28585 Snap Ring Remover

1. Remove the front internal gear thrust bearing (529).
2. Remove the low and reverse clutch plate retaining ring (518) from the transmission case assembly with J 28585 .
3. Remove the low and reverse clutch backing plate (515).
4. Remove the 4 low and reverse clutch fiber plate assemblies (516).
5. Remove the 3 low and reverse clutch steel plates (517).
6. Remove the low and reverse clutch backing plate (515).
7. Remove the front internal gear (526). The front internal gear thrust bearing assembly (519) and the thrust washer race (530) are on the back side of the front internal gear (526).

Low and Reverse Clutch Piston Removal

1. Remove the low and reverse clutch spring retaining ring (514) from the transmission case assembly.
2. Remove the low and reverse clutch spring assembly (513).
3. While rotating the low and reverse clutch piston (511) by hand, apply compressed air into the oil passage located in the side of the transmission case and remove the low and reverse clutch piston assembly.
4. Remove the inner seal (510) and the outer seal (512) from the piston.

Output Gear Assembly Removal

1. Rotate the transmission assembly so the I.D. tag is facing up.
2. Remove the output gear retaining ring (48) from the output gear assembly (12).
3. Remove the output gear assembly (12) from the transmission case assembly.
4. Clean the output gear in solvent and air dry. Ensure the solvent is removed from the bearing.
5. Inspect the bearings feel for roughness or noise.
6. Inspect the gear teeth for: Excessive wear Chips or broken teeth Metal embedded in the teeth
7. Replace the output drive gear as an assembly if any of the above conditions are found.

J 45201 Cooler Line Seal Remover

1. Insert the collet (2) of the J 45201 completely into the fluid cooler pipe fitting seal (87).
2. Insert the forcing screw (1) of the J 45201 into the collet (2).
3. Tighten the forcing screw (1) until snug.
4. Thread the collar (1) of the J 45201 onto the collet (3) until snug.
5. Using an adjustable wrench, turn the collar clockwise in order to remove the fluid cooler pipe fitting seal (87).
6. Discard the fluid cooler pipe fitting seal.
7. Clean the case bores for the fluid cooler pipe fitting seals as needed.

Transmission Case Inspection

1. Thoroughly clean the transmission case and all the case threads with solvent.
2. Inspect the case exterior and the external bores for cracks, sharp edges, porosity and excessive bushing wear.
3. Inspect the case interior for damage at the snap ring grooves, case lugs and band anchor pin.
4. Inspect all the gasket surfaces for surface damage and in order to ensure surface flatness.
5. Air check the oil passages. For identification of the oil passages, refer to the transmission diagnosis section.
6. Inspect the bearing race for the front differential assembly.
7. Inspect the lugs for low/reverse clutch, for wear or excessive notches.
8. Inspect the low/reverse piston bore for wear, nicks or scratches.
9. Replace the case if any of the above conditions are found.
10. Inspect the bolt holes and fasteners for thread damage. If necessary, repair or replace any bolt holes or fasteners.

J 41239-1A Cooler Line Seal Installer

Scheme 107

Using J 41239-1A install 2 NEW fluid cooler pipe fitting seals (87) making sure that the seal lip is flush with the transmission case assembly.

DT-47687 Rotational Torque Adapter. See Special Tools .

1. Rotate the transmission assembly so that the torque converter housing side is facing up.
2. Install the front differential assembly (13) into the empty transmission case.
3. Install the torque converter housing assembly (10) to the transmission case assembly.
4. Install the following fasteners and hand tighten. Tighten: 2 - torque converter housing studs (3) - M8 x 1.25 x 30 1 - torque converter housing bolt Torx (8) - M8 x 1.25 x 30 9 - torque converter housing bolt (4) - M8 x 1.25 x 30
5. Tighten the torque converter housing bolts in sequence. Tighten: Tighten the bolts to 29 N.m (21 lb ft).
6. Insert DT-47687 (1) into the axle shaft opening of the differential and rotate DT-47687 (1) until it engages with the differential pinion shaft (645). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
7. Using a torque wrench, measure the rotational torque required to slowly rotate the front differential assembly and note the readings. Rotational Torque Specification: Specification should be within 0.70-1.20 N.m (6-11 lb in).
8. If the obtained measurement is within specifications, the differential shim replacement is not necessary. If obtained measurement is not within the listed specifications, the front differential bearing race shim must be replaced.
9. Remove DT-47687 (1) from the front differential assembly. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
10. Remove the torque converter housing assembly and the front differential assembly from the transmission case.

Front Differential Bearing Race and Selective Shim Removal

Tools Required

1. J 45124 Removal Bridge
2. J 45160 Differential Bearing Race Remover. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Install the J 45160 onto the bearing race taking care to make sure the bottom of the tool is all the way down inside the race and seats flat on top of the selective shim before tightening. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. Using two wrenches tighten J 45160 to firmly seat the tool into the bearing race for removal. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. Position the adjustable leg sections of J 45124 (1) to seat squarely onto the top of the case section around the front differential bearing race (90).
4. Attach J 45124 (1) to J 45160 (2) and hand tighten the center bolt to lightly apply tension to prevent movement of the tool assembly. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Reinspect the position of the adjustable legs of J 45124 (1) to ensure that the front differential bearing race will clear the adjustable legs and no damage to the transmission case assembly will occur when removing the race.
5. Tighten the bolt on J 45124 (1) to remove the front differential bearing race (90) from the transmission case assembly.
6. Remove the front differential bearing race selective shim (88) from the transmission case assembly.
7. Measure the front differential bearing race selective shim (88) to determine its size. Based on the obtained measurement, refer to «Shim Size Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__shim-size-specifications) in order to determine the correct size of shim that will be needed. If the obtained rotational torque measurement was less than the listed specification, then a larger/thicker selective shim will be required. If the obtained rotational torque measurement was greater than the listed specification, then a smaller/thinner shim will be required.

Front Differential Bearing Race and Selective Shim Installation

Tools Required

1. J 8092 Driver Handle
2. J 45184 Differential Bearing Race Installer. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Once the proper shim has been selected, install the new front differential bearing race selective shim (88) into the transmission case assembly.
2. Using J 8092 (1) and J 45184 (2), install the front differential bearing race (90) into the transmission case assembly. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. After the front differential bearing race is correctly installed into the case, repeat the rotational torque measurement procedure to verify that the correct shim thickness was selected.

J 45161 Manual Shift Shaft Bearing Replacer. See Special Tools .

1. Remove the manual shift shaft seal assembly (713) from the transmission case assembly using a small pry bar.
2. Using J 45161 and a hammer, drive the manual shift shaft bearing (714) through the transmission case assembly bore to remove the bearing. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

J 45161 Manual Shift Shaft Bearing Replacer. See Special Tools .

1. Using J 45161 and a hammer, install the manual shift shaft bearing (714) into the transmission case assembly until J 45161 is flush with the case bore. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. Install the manual shift shaft seal (713) by pressing the seal into the case bore by hand.

J 45000 Seal Remover

Scheme 108

Using J 45000 , remove the left front wheel drive shaft oil seal from the transaxle case.

J 44809 Output Shaft Seal Installer

Scheme 109

Using J 44809 , install the left front wheel drive shaft oil seal (80) into the transmission case assembly making sure that the seal is flush with the case flange.

J 45000 Seal Removal Tool

Scheme 110

Using J 45000 , remove the front differential carrier seal (800) from the torque converter housing assembly.

J 45187 Differential Output Shaft Oil Seal Installer. See Special Tools .

Scheme 111

Using J 45187 install the front differential carrier seal (800) into the torque converter housing assembly. See Special Tools .

4-5 Clutch Drum Assembly Disassemble

Tools Required

1. J 23327 Clutch Spring Compressor
2. J 25024-A Servo Piston/Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. J 28585 Snap Ring Remover
4. J 45186 Forward and Direct Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Using J 28585 remove the 4-5 clutch backing plate retaining ring (575) from the 4-5 clutch drum assembly (584).
2. Remove the following components from the 4-5 clutch drum assembly (584): The 4-5 clutch backing plate (576) The 4 fiber plates (577) The 4 steel plates (578)
3. Remove the 4-5 clutch piston return spring assembly (580). Place the J 25024-A (3) in a vise with the forcing screw on the bottom and backed out. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 45186 (1) on the 4-5 clutch piston return spring assembly (580). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 21420-2 (4) from the J 23327 on top of the forcing screw of J 25024-A (3). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the clutch housing with the J 45186 (1) on the J 21420-2 (4) and under the arms of J 25024-A (3). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . With the forcing screw, compress the clutch spring to allow the removal of the retaining ring. Use J 28585 (2) or snap ring pliers to remove the retaining ring (579).
4. Remove the 4-5 clutch piston return spring assembly (580).
5. Using the case as a holding fixture, install the front differential transfer drive gear assembly (14) into the output gear bore.
6. Install the 4-5 clutch assembly (15) onto the front differential transfer drive gear assembly (14), with the clutch piston facing up, so that the fluid passages are around the sealing rings.
7. Apply air pressure to the fluid passage (1) in the end of the front differential transfer drive gear assembly shaft and remove the 4-5 clutch piston assembly (582).
8. Remove the 4-5 clutch drum assembly and the front differential transfer drive gear assembly from the case.
9. Remove the piston inner seal (581) and the piston outer seal (583) from the 4-5 clutch piston (582).

J 45185 Bore Gage Set. See Special Tools .

1. Wash the clutch components in clean solvent and air dry.
2. Inspect the clutch drum for the following conditions: Lugs in the drum for excessive grooves that prevent the clutch plates from sliding Sun gear for chips or meteal embedded in the teeth Drum surface for scoring or excessive wear Piston o-ring surfaces for wear, nicks, or scratches Bearing thrust surfaces for damage or wear
3. Using J 45185 , measure the inner diameter of the 4-5 clutch drum bushing (A) at different locations and take the average. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Specification: 36.125 - 36.200 mm (1.422 - 1.425 in)
4. If the bushing is out of specifications or any of the above conditions are found replace the 4-5 clutch drum
5. Shake the clutch piston to inspect the ball check valve for not being stuck.
6. Apply compressed air in the opposite side of the check valve and inspect for leaking.
7. Inspect the piston o-ring seal grooves for damage.
8. Replace the piston if any of the above conditions are found.
9. Inspect the clutch plates and discs for wear, warp age, or being burnt.
10. Replace the clutch plates and discs if any of the above conditions are found.

4-5 Clutch Drum Assembly Assemble

Tools Required

1. J 23327 Clutch Spring Compressor
2. J 25024-A Servo Piston/Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. J 28585 Snap Ring Remover
4. J 45186 Forward and Direct Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Apply automatic transmission fluid to the new piston seals.
2. Install a new piston inner seal (581) and a new piston outer seal (583) on to the 4-5 clutch piston (582).
3. Apply automatic transmission fluid to the inner and outer seal surfaces of the 4-5 clutch drum assembly (584).
4. Install the 4-5 clutch piston assembly (582) into the 4-5 clutch drum assembly (584).
5. Install the 4-5 clutch piston return spring assembly (580) on to the 4-5 clutch piston assembly, indexing the springs to the holes in the 4-5 clutch piston assembly.
6. Install the 4-5 clutch piston return spring retaining ring (579). Place the J 25024-A (3) in a vise with the forcing screw on the bottom and backed out. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 45186 (1) on the 4-5 clutch piston return spring assembly (580). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 21420-2 (4) from the J 23327 on top of the forcing screw of J 25024-A (3). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the clutch housing with the J 45186 (1) on the J 21420-2 (4) and under the arms of J 25024-A (3). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . With the forcing screw, compress the clutch spring to allow the installation of the retaining ring. Use J 28585 (2) or snap ring pliers to install the retaining ring (579).
7. Install the 4 fiber plates (577) and the 4 steel plates (578) into the 4-5 clutch drum assembly (584).
8. Install the 4-5 clutch backing plate (576) into the 4-5 clutch drum assembly (584).
9. Using J 28585 install the 4-5 clutch backing plate retaining ring (575) into the groove of the 4-5 clutch drum assembly (584). Make sure that the end gap of the retaining ring is not aligned with one of the cutouts in the drum.

J 45200 Dial Indicator Set. See Special Tools .

1. Rotate the transaxle assembly so the torque converter housing side is facing up.
2. Using the case as a holding fixture, install the front differential transfer drive gear assembly (14) into the output gear bore.
3. Install the 4-5 clutch assembly (15) onto the front differential transfer drive gear (14), with the clutch plates facing up.
4. Install the J 45200 on the 4-5 clutch drum. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
5. Align the dial indicator pointer on the piston and set the dial indicator to zero.
6. Apply air pressure to the fluid passage (1) in the end of the 4-5 clutch drum shaft, and record the measurement. Refer to «Transmission Clearance Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__transmission-clearance-specifications) , 4-5 Clutch Piston Stroke to determine the correct backing plate.
7. If the measurement is out of specifications replace the backing plate with the correct thickness. Refer to «Transmission Clearance Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__transmission-clearance-specifications) , available 4-5 clutch backing plates (567) thickness.
8. Remove the 4-5 clutch drum assembly and the front differential transfer drive gear assembly from the case.

Output Gear Assembly Installation

1. Rotate the transmission case so that the I.D. tag is facing up.
2. Install the output gear assembly (12) into the transmission case assembly.
3. Install the output gear retaining ring (48) into the output gear assembly (12) groove.

Low and Reverse Clutch Piston Installation

1. Rotate the transmission case so the transmission case cover side is facing up.
2. Apply automatic transmission fluid to the new seals.
3. Install the new inner (510) and outer (512) piston seals onto the low and reverse clutch piston (511).
4. Apply automatic transmission fluid to the seal surfaces of the transmission case.
5. By hand, press the low and reverse clutch piston (511) into the transmission case until seated. Do not damage the seals.
6. Install the low and reverse clutch spring assembly (513) onto the low and reverse clutch piston (511), indexing the springs to the piston bosses.
7. While compressing the low and reverse clutch spring (513) by hand, install the low and reverse clutch spring retaining ring (514) into the groove in the transmission case assembly, making sure the open ends face away from any openings.

Front Internal Gear and Overrun Clutch Disassemble

1. Remove the overrun clutch assembly (523) from the front internal gear.
2. Remove the front internal gear flange retaining ring (528).
3. Remove the front internal gear flange (527).

Front Internal Gear Cleaning and Inspection

1. Clean the front internal gear and overrun roller clutch assembly in solvent and air dry.
2. Inspect the front internal gear for the following: Clutch teeth for notches or grooves that prevent the clutch disc from sliding Ring gear teeth for excessive wear, damage, or chipped teeth Metal debris embedded in the ring gear teeth Overrun clutch roller surface for roughness or wear
3. Replace the front internal gear if any of the above conditions are found.
4. Inspect the overrun roller clutch rollers for wear or damage.
5. Replace the overrun roller clutch if faulty.

Front Internal Gear and Overrun Clutch Assemble

1. Install the front internal gear flange (527).
2. Install the front internal gear flange retaining ring (528).
3. Install the overrun clutch assembly (523) into the front internal gear.
4. Hold the front internal gear and inspect the movement of the overrun roller clutch. The inner race should turn freely counterclockwise (1) and should lock clockwise (2).

J 28585 Snap Ring Remover

1. Install the front internal gear thrust washer race (530) on top of the output gear assembly.
2. Install the front internal gear thrust bearing assembly (519) on top of the front internal gear thrust washer race (530).
3. Install the front internal gear and overrun roller clutch assembly (526).
4. Install the low and reverse clutch backing plate (515)
5. Install the 3 steel plates (517) and the 4 fiber plates (516).
6. Install the low and reverse clutch backing plate (515).
7. Using J 28585 install the low and reverse clutch plate retaining ring (518), aligning the openings of the retaining ring towards the dowel pin in the case. Both ends of the retaining ring lock in the lug.

Low and Reverse Clutch Piston Travel Measurement

Tools Required

1. J 45200 Dial Indicator Set. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. J 45166 8" Dial Indicator Extension Rod. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Install the J 45166 (1) in one of the holes of the transmission case. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. Install the J 45200 (2) on the J 45166 (1). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. Set the dial indicator pointer on the low and reverse clutch backing plate and zero the gage.
4. Apply compressed air to the case fluid passage as shown in the insert and measure the piston stroke. Specification: Low and reverse piston stroke: 1.09 - 1.91 mm (0.043 - 0.075 in)
5. If the piston stroke measurement is not within specifications, ensure proper installation of the clutch discs or the clutch discs are not excessively worn.

Front Carrier Sun Gear Assembly Disassemble

1. Remove the front sun gear retaining ring (541) from the front sun gear assembly (544).
2. Remove the front sun gear (544) from the front carrier assembly (542).
3. Remove the rear internal gear flange retaining ring (548) from the rear internal gear (536).
4. Remove the rear internal gear flange (547) from the rear internal gear.

J 45185 Bore Gage Set. See Special Tools .

1. Clean the rear internal gear and air dry.
2. Inspect the rear internal teeth for the following: Chips Cracks Excessive wear Metal debris embeded in teeth
3. Replace the rear internal gear if any of the above conditions are found.
4. Install the rear internal gear flange (547) in the rear internal gear (536).
5. Install the rear internal gear flange retaining ring (548).
6. Clean the rear sun gear (539) and air dry.
7. Inspect the rear sun gear teeth for the following: Chips Cracks Excessive wear Metal debris embeded in teeth
8. Inspect the rear sun gear bushing for scoring or excessive wear.
9. Using J 45185 and a micrometer measure the rear sun gear bushing inner diameter. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Measure in three locations and take the average. Specification: Rear sun gear bushing: 22.200 - 22.276 mm (0.874 - 0.877 in)
10. If the rear sun gear bushing is not within specifications or any of the above conditions are found, replace the rear sun gear.
11. Clean the front carrier assembly (542) and air dry. Ensure to remove all solvent in the pinion gears.
12. Inspect the front carrier assembly pinion teeth for the following conditions: Chips Cracks Excessive wear Metal debris embeded in teeth
13. Inspect for missing washers on both sides of the pinion gears.
14. Inspect the front carrier bushing for scoring or excessive wear.
15. Using J 45185 and a micrometer measure the front carrier bushing inner diameter. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Measure in three locations and take the average. Specification: Front carrier bushing: 30.00 - 30.076 mm (1.181 - 1.184 in)
16. If the front carrier bushing is not within specifications or any of the above conditions are found, replace the front carrier assembly.
17. Clean the front sun gear (544) and air dry.
18. Inspect the front sun gear teeth for the following conditions: Chips Cracks Excessive wear Metal debris embeded in teeth
19. Inspect the front sun gear shaft for excessive wear or scoring at the front carrier assembly bushing area.
20. Using J 45185 and a micrometer measure the rear sun gear bushing inner diameter. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Measure in three locations and take the average. Specification: Front sun gear bushing: 22.200 - 22.276 mm (0.874 - 0.877 in)
21. If the front sun gear bushing is not within specifications or any of the above conditions are found, replace the front sun gear.
22. Install the front sun gear (544) into the front carrier assembly (542).
23. Install the front sun gear retaining ring (541) into the groove of the front sun gear (544).

Front Carrier Sun Gear Assembly Installation

1. Install the front internal gear thrust bearing assembly (529) - black side up.
2. Install the front carrier and sun gear assembly (24).
3. Install the front sun gear thrust bearing (545) and the front sun gear thrust bearing race (543).

Rear Internal Gear Assembly Installation

1. Install the rear internal gear thrust bearing (535).
2. Install the rear internal gear assembly (536).
3. Install the rear sun gear thrust bearing race (537).

Rear Sun Gear and Hub Assembly Installation

1. Install the rear sun gear thrust bearing (538).
2. Install the front sun gear thrust bearing race (546).
3. Install the rear sun gear assembly (539).
4. Install the input shaft thrust bearing (540).

Forward and Direct Clutch Assembly Disassemble

Tools Required

1. J 23327 Clutch Spring Compressor
2. J 25024-A Servo Piston/Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. J 28585 Snap Ring Remover
4. J 45186 Forward and Direct Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Remove the input shaft O-ring seal (570) from the forward and direct clutch housing assembly - with input shaft (567).
2. Remove the forward clutch housing thrust bearing (569) and the forward clutch housing thrust bearing race (568) from the forward and direct clutch housing assembly - with input shaft (567).
3. Using J 28585 , remove the forward clutch backing plate retaining ring (550) from the forward and direct clutch housing assembly - with input shaft (567).
4. Remove the following components from the forward and direct clutch housing assembly - with input shaft (567): The forward clutch backing plate (551) The 4 forward clutch fiber plates (552) The 4 forward clutch steel plates (553)
5. Using J 28585 , remove the direct clutch backing plate retaining ring (554) from the forward and direct clutch housing assembly - with input shaft (567).
6. Remove the following components from the forward and direct clutch housing assembly - with input shaft (567): The direct clutch backing plate (555) The 4 direct clutch fiber plates (556) The 4 direct clutch steel plates (557) The direct clutch apply plate (558)
7. Remove the direct clutch spring retaining ring (559). Place the J 25024-A (1) in a vise with the forcing screw on the bottom and backed out. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 45186 (2) over the shaft of the forward direct clutch housing and input shaft assembly (567). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 21420-2 (4) from the J 23327 on top of the forcing screw of J 25024-A (1). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . With the forcing screw, compress the clutch spring to allow the removal of the retaining ring. Use J 28585 (3) or snap ring pliers to remove the retaining ring. Remove the tools.
8. Remove the direct clutch spring assembly (560).
9. Install the forward and direct clutch housing assembly with input shaft (567) onto the transmission case cover (19).
10. While pulling on the piston by hand, apply compressed air into the fluid passage (C2) in order to remove the direct clutch piston (562).
11. Remove the direct clutch piston inner seal (561) and the direct clutch piston outer seal (563) from the direct clutch piston (562).
12. While pulling upward on the piston by hand, apply compressed air into the fluid passage (C1) in order to remove the forward clutch piston (565).
13. Remove the forward clutch piston inner seal (564) and the forward clutch piston outer seal (566) from the forward clutch piston (565).

Forward and Direct Clutch Assembly Assemble

Tools Required

1. J 23327 Clutch Spring Compressor
2. J 25024-A Servo Piston/Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. J 28585 Snap Ring Remover
4. J 45186 Forward and Direct Clutch Spring Compressor. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Inspect the clutch plates for being worn or burnt. Replace the plates if worn or burnt.
2. Shake the piston to be sure the ball check valve is free.
3. Apply compressed air to the ball check valve to be sure it is not leaking.
4. Inspect the O-ring grooves in the pistons for nicks or scratches.
5. Inspect the clutch plate lugs in the forward clutch piston for grooves.
6. Replace the piston if faulty.
7. Clean the forward and direct clutch housing assembly and air dry. Ensure to remove all solvent from the oil passages.
8. Inspect the forward and direct clutch housing assembly for the following conditions: Input shaft bearing and bushing areas for excessive wear or damage Rear support bearing surface for excessive wear or damage Piston bores for nicks, grooves or excessive wear Clutch plate lugs for grooves that will prevent the clutch plates from sliding
9. Replace the forward and direct clutch housing if any of the above conditions are found.
10. Apply automatic transmission fluid to the new forward clutch piston seals.
11. Install the forward clutch piston inner seal (564) and the forward clutch piston outer seal (566) onto the forward clutch piston (565).
12. Apply automatic transmission fluid to the inner surface of the forward clutch drum.
13. Apply automatic transmission fluid to the inner surface of the forward clutch drum.
14. Press, by hand, the forward clutch piston (565) into the forward and direct clutch housing assembly - with input shaft.
15. Apply automatic transmission fluid to the new direct clutch piston seals.
16. Install the direct clutch piston inner seal (561) and the direct clutch piston outer seal (563) onto the direct clutch piston (562).
17. Apply automatic transmission fluid to the inner surface of the forward clutch piston.
18. Press, by hand, the direct clutch piston (562) into the forward clutch piston.
19. Install the direct clutch spring assembly (560) onto the direct clutch piston, indexing the springs into the holes in the direct clutch piston (562).
20. Install the direct clutch spring retaining ring (559). Place the J 25024-A (1) in a vise with the forcing screw on the bottom and backed out. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 45186 (2) over the shaft of the forward direct clutch housing and input shaft assembly (567). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Place the J 21420-2 (4) from the J 23327 on top of the forcing screw of J 25024-A (1). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . With the forcing screw, compress the clutch spring to allow the installation of the retaining ring. Use J 28585 (3) or snap ring pliers to install the retaining ring. Remove the tools.
21. Install the direct clutch apply plate (558). The plate is convex shaped.
22. Install the 4 direct clutch steel plates (557) and the 4 direct clutch fiber plates (556).
23. Install the direct clutch backing plate (555).
24. Install the direct clutch backing plate retaining ring (554) into the groove in the forward and direct clutch housing assembly - with input shaft (567) using J 28585 .
25. Install the 4 forward clutch steel plates (553) and the 4 forward clutch fiber plates (552).
26. Install the forward clutch backing plate (551).
27. Install the forward clutch backing plate retaining ring (550) into the groove in the forward and direct clutch housing assembly - with input shaft (567) using J 28585 .
28. Install the forward clutch housing thrust bearing race (568) 0.81 mm (0.032 in) thickness and the forward clutch housing thrust bearing (569).
29. Apply automatic transmission fluid to the new input shaft O-ring seal (570).
30. Install the new input shaft O-ring seal (570) into the groove of the forward and direct clutch housing assembly - with input shaft (567).

Direct Clutch Piston Travel Check

Tools Required

1. J 45200 Dial Indicator Set. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. J 45166 Dial Indicator Extension Rod - 8 inch". See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Install the forward and direct clutch assembly (23) onto the transmission case cover (19).
2. Remove the inner forward clutch accumulator cover bolt/screw (617) from the forward clutch accumulator assembly. Install J 45166 (2) in place of the removed bolt. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. Assemble J 45200 (3) and J 45166 (2) onto the transmission case cover (19). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
4. Install dial indicator extension - OTC # 222545 or equivalent (4) on the dial indicator plunger.
5. Place the dial indicator plunger on the piston as shown and set the dial indicator to zero.
6. Cover the forward clutch accumulator housing (1) with a shop rag to prevent fluid from spraying out the top of the accumulator housing when compressed air is applied to the passege (C2).
7. Apply compressed air to the C2 fluid passage in the case and measure the direct clutch piston stroke. Specification: Direct clutch piston stroke: 1.49 - 1.91 mm (0.059 - 0.075 in)
8. If the piston stroke is not within specifications, replace the direct clutch backing plate with the correct thickness. Refer to «Transmission Clearance Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__transmission-clearance-specifications) , Available Direct Clutch Backing Plate Thickness.

Forward Clutch Piston Travel Check

Tools Required

1. J 45200 Dial Indicator Set. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. J 45166 Dial Indicator Extension Rod - 8 inch". See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Install the forward and direct clutch assembly (23) onto the transmission case cover (19).
2. Remove the inner forward clutch accumulator cover bolt/screw from the forward clutch accumulator assembly. Install J 45166 (2) in place of the removed bolt. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. Assemble J 45200 (3) and J 45166 (2) onto the transmission case cover (19). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
4. Install the dial indicator extension - OTC # 222545 or equivalent (4) on the dial indicator plunger.
5. Place the dial indicator plunger on the piston as shown and set the dial indicator to zero.
6. Cover the forward clutch accumulator housing (1) with a shop rag to prevent fluid from spraying out the top of the accumulator housing when compressed air is applied to the passege (C2).
7. Apply compressed air to the C1 fluid passage in the case and measure the forward clutch piston stroke. Specification: Forward clutch piston stroke: 0.74 - 1.06 mm (0.029 - 0.042 in)
8. If the piston stroke is not within specifications, replace the forward clutch backing plate with the correct thickness. Refer to «Transmission Clearance Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__transmission-clearance-specifications) , Available Forward Clutch Backing Plate Thickness.

Forward and Direct Clutch Assembly Installation

1. Install the forward clutch and direct clutch assembly (23). Rotate the clutch assembly during installation in order to index the forward and direct clutch plates with the rear internal gear and the rear sun gear assembly.
2. Measure dimension a. Installation Height: Dimension a should be 50.850-51.825 mm (2.002-2.040 in).
3. If dimension a is greater than specification, index the forward and direct clutch assembly until the correct specification is met.
4. Using a plastic hammer, install the lube fluid pipe (85).
5. Install the lube fluid pipe retainer (84)
6. Install the lube fluid pipe retainer bolt (83). Tighten: Tighten the lube fluid pipe retainer bolt to 5 N.m (44 lb in).
7. Apply grease to the 5 new case fluid passage seals.
8. Install the 5 new case fluid passage seals (86) into the transmission case assembly.

Case Cover Assembly Disassemble

1. Remove the 4, 4-5 clutch apply pipe bolts/screws (611) and the 2, 4-5 clutch apply pipe retainers (610) from the transmission case cover.
2. Remove the 4-5 clutch apply pipe (609).
3. Remove the forward/direct clutch housing thrust bearing race (628) from the transmission case cover.
4. Remove the 3 forward clutch housing fluid seal rings (607) from the transmission case cover.
5. Remove the 2 forward clutch accumulator cover bolts/screws (617) and the forward clutch accumulator cover (616).
6. Remove the following components from the forward clutch accumulator cover: The forward clutch accumulator piston (612) The forward clutch accumulator piston fluid seal ring (613) The forward clutch accumulator piston spring (614) The forward clutch accumulator cover seal (615)

1-2 Reverse Clutch Disassemble

Tools Required

1. J 23327 Clutch Spring Compressor
2. J 28585 Snap Ring Remover
3. J 23456 Booster and Clutch Pack Compressor
4. J 45184 Differential Bearing Race Installer. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Remove the 1-2 reverse clutch backing plate retaining ring (622) using J 28585 .
2. Remove the following components: The 1-2 reverse clutch backing plate (621) The 6 1-2 reverse clutch fiber plates (620) The 6 1-2 reverse clutch steel plates (619) The 1-2 reverse clutch apply plate (618)
3. Place J 45184 (1) on the center of J 23456 (2). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
4. Place the transmission case cover (19) with the 1-2 reverse clutch piston assembly onto J 45184 (1). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
5. Using J 23327-1 (3), which is the bridge part of J 23327 , compress the 1-2 reverse clutch piston return spring assembly (601).
6. Remove the 1-2 reverse clutch piston return spring retaining ring (600) using snap ring pliers.
7. Remove the pressure from J 23456 (2), remove J 23327-1 (3) and the 1-2 reverse clutch piston return spring assembly (601).
8. Remove all tools.
9. While pulling upward on the piston by hand, apply compressed air into the 1-2 reverse clutch fluid passage and remove the 1-2 reverse clutch piston (603).
10. Remove the 1-2 reverse clutch piston inner seal (602).
11. Remove the 1-2 reverse clutch piston outer seal (604).

Case Cover Cleaning and Inspection

1. Clean the transmission case cover and air dry. Ensure solvent is removed from the fluid passages and bearings.
2. Inspect the front differential transfer drive gear assembly rear bearing assembly (623) for the following conditions: Bent cages Brinneling Pitting Flaking
3. Inspect the input shaft support bearing (625) for the following conditions: Bent cages Brinneling Pitting Flaking
4. Inspect the transmission cover sealing surface for damage.
5. Inspect the 1-2 reverse clutch piston bore for wear or damage.
6. Inspect the lugs for the 1-2 reverse clutch plates for grooves that will prevent the plates for sliding.
7. Replace the transmission case cover if any of the above conditions are found.

1-2 Reverse Clutch Assemble

Tools Required

1. J 23327 Clutch Spring Compressor
2. J 23456 Booster and Clutch Pack Compressor
3. J 45184 Differential Bearing Race Installer. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Apply automatic transmission fluid to the new 1-2 reverse clutch piston seals (602, 603).
2. Install the new 1-2 reverse clutch piston inner seal (602) and the 1-2 reverse clutch piston outer seal (604) onto the 1-2 reverse clutch piston (603).
3. Apply automatic transmission fluid to the inner surface of the transmission case cover.
4. Hand press the 1-2 reverse clutch piston (603) into the transmission case cover, making sure not to damage the seals.
5. Place the 1-2 reverse clutch piston return spring assembly (601) on the 1-2 reverse clutch piston (603), indexing the springs into the holes in the 1-2 reverse clutch piston assembly.
6. Place J 45184 (1) on the center of J 23456 (2). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
7. Place the transmission case cover (19) with the 1-2 reverse clutch piston assembly onto J 45184 (1). See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
8. Using J 23327-1 (3), which is the bridge part of J 23327 , compress the 1-2 reverse clutch piston return spring assembly (601).
9. Install the 1-2 reverse clutch piston return spring retaining ring (600) using snap ring pliers.
10. Remove the pressure from J 23456 (2).
11. Remove all tools.
12. Install the 1-2 reverse clutch apply plate (618).
13. Install the 6 steel plates (619) and the 6 fiber plates (620).
14. Install the 1-2 reverse clutch backing plate (621).
15. Install the 1-2 reverse clutch backing plate retaining ring (622) into the groove indicated.

Case Cover Assembly Assemble

1. Apply automatic transmission fluid to the new forward clutch accumulator piston fluid seal ring (613).
2. Install the new forward clutch accumulator piston fluid seal ring (613) onto forward clutch accumulator piston (612).
3. Install the forward clutch accumulator piston spring (614) and the forward clutch accumulator piston (612) into the forward clutch accumulator cover (616).
4. Apply automatic transmission fluid to the new forward clutch accumulator cover seal (615).
5. Install the new forward clutch accumulator cover seal (615) onto forward clutch accumulator cover (616).
6. Install the forward clutch accumulator cover assembly onto the transmission case cover.
7. Install and tighten 1 of the 2 forward clutch accumulator cover bolts (617). Tighten: Tighten the forward clutch accumulator cover bolt (617) to 10 N.m (89 lb in).
8. Apply automatic transmission fluid to the 3 new forward clutch housing fluid seal rings (607). Install the 3 new forward clutch housing fluid seal rings (607).
9. Install the forward/direct clutch housing thrust selective bearing race (628) without any markings. This is the 0.81 mm (0.032 in) thick race and will determine the correct thickness for the forward/direct clutch end play measurement.
10. Apply automatic transmission fluid to the 2 new 4-5 clutch apply pipe seals (608).
11. Install the 2 pipe seals (608) onto the 4-5 clutch apply pipe (609).
12. Using a plastic hammer if needed, install the 4-5 clutch apply pipe (609) into the transmission case cover.
13. Install the two, 4-5 clutch apply pipe retainers (610).
14. Install the four, 4-5 clutch apply pipe bolts (611). Tighten: Tighten the 4-5 clutch apply pipe bolts to 7 N.m (62 lb in).

1-2 Reverse Clutch Piston Travel Measurement

Tools Required

1. J 45166 Dial Indicator Extension Rod - 8 inch". See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. J 45200 Dial Indicator Set. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Inspect the sliding surface of the plates for being worn or burnt. If the plates are worn or burnt, replace them.
2. Install the J 45166 (1) into the forward clutch accumulator bolt hole that was not installed on the prior step. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Assemble J 45200 (2) onto J 45166 (1) and set the dial indicator to zero. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. Apply compressed air into the fluid passage in order to measure the piston stroke, and to be sure that the piston moves smoothly.
4. If the piston stroke is not within specifications, select another 1-2 reverse clutch backing plate. Refer to 1-2 Reverse Clutch (B5), Piston Bore Stroke in «Transmission Clearance Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__transmission-clearance-specifications) .

J 45200 Dial Indicator Set. See Special Tools .

1. Install the transmission case cover assembly (19) to the transmission case assembly (17).
2. Rotate the transmission case so that the front section of the case is facing up.
3. Install J 45200 as shown and set the dial indicator to zero. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
4. With one hand, carefully pull straight up on the forward and direct clutch assembly (23) input shaft until the assembly first bottoms out.
5. Record the measurement.
6. Compare the measurement with the listed specification. Specification: Forward and direct clutch assembly end play: 0.188 - 0.570 mm (0.007 - 0.022 in)
7. If out of specification, remove the transmission case cover assembly.
8. Replace the forward clutch housing selective thrust bearing race (628) as needed to obtain the correct end play specification.
9. If the end play measurement is within specifications, rotate the transmission case assembly so that the transmission case cover side is facing up.
10. Remove the transmission case cover assembly (19) and clean the sealing surfaces of the transmission case cover (19) and the transmission case assembly (17).

Transmission Case Cover and 1-2 Reverse Clutch Assembly Installation

1. Remove any sealant and automatic transmission fluid from the contacting surfaces of the transmission case cover and the transmission case.
2. Apply a 3 mm (1/8 in) bead of sealant GM P/N 89020326 (Canadian P/N 89021188), to the transmission case cover.
3. Install the transmission case cover assembly (19) onto the transmission case assembly (17).
4. Apply threadlocker GM P/N 12345382 (Canadian P/N 10953489), to the threads of all the case cover bolts.
5. Install 9 - M8 x 1.25 x 30 mm bolts (1) and hand tighten.
6. Install 1 - M8 x 1.25 x 45 mm bolt (2) and hand tighten.
7. Install 2 - M8 x 1.25 x 48 mm bolts (3) and hand tighten.
8. Tighten the 12 transmission case cover assembly bolts in sequence. Tighten: Tighten the 12 transmission case cover assembly bolts to 25 N.m (18 lb ft).

Third Gear Band Servo Piston Disassemble

1. Remove the E-clip.
2. Disassemble the third gear band servo piston assembly.
3. Measure the free length and the outer diameter of the outer and inner third gear band servo piston springs. Refer to 3rd Gear Band Servo (B4) Return Springs in «Transmission Clearance Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__transmission-clearance-specifications) .

Third Gear Band Servo Piston Assemble

1. Assemble the third gear band servo piston assembly.
2. Apply automatic transmission fluid to the new 3rd gear band servo piston O-ring seal, and install it into the groove of the third gear band servo piston.
3. Install the E-clip into the groove of the third gear band servo piston pin.

Third Gear Band Servo Piston Installation

1. Apply automatic transmission fluid to the third gear band servo bore in the transmission case.
2. Install the third gear band servo compression spring (56) and the third gear band servo piston assembly (57) to the transmission case.
3. Apply automatic transmission fluid to the 2 new third gear band servo cover O-ring seals (58).
4. Install the third gear band servo cover O-ring seals (58) onto the third gear band servo cover (59).
5. Install third gear band servo cover (59) into the third gear band servo bore in the transmission case.
6. Using snap ring pliers, install the third gear band servo cover retaining ring (60) while pressing the third gear band servo cover into the third gear band servo bore to properly seat the retaining ring.

1-2-Reverse Carrier Gear Assembly Installation

1. Rotate the transmission case assembly so that the torque converter housing side is facing up.
2. Install the 1-2 reverse internal gear rear thrust bearing assembly (595) with the flat side up.
3. Install the 1-2 reverse internal gear shim (596) without any markings. Correct shim selection is performed during the front differential transfer drive gear assembly installation.
4. Install the 1-2 reverse internal gear (594).
5. Install the 1-2 reverse internal gear front thrust bearing assembly (593) with the flange up.
6. Install a 1-2 reverse carrier thrust washer (590) to the lower side of the 1-2 reverse carrier gear assembly (591).
7. Install the 1-2 reverse carrier gear assembly (591) into the 1-2 reverse internal gear (594). The carrier assembly will be flush to the 1-2 reverse internal gear.
8. Install the other 1-2 reverse carrier thrust washer (590) on top of the 1-2 reverse carrier gear assembly (591).

DT-47599 Anchor Bolt Socket. See Special Tools .

1. Inspect the anchor bolt and the bolt hole.
2. Apply automatic transmission fluid to a new O-ring (65).
3. Install the new O-ring and third gear band anchor bolt (64) using DT-47599 . See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Tighten: Tighten the anchor bolt to 167 N.m (123 lb ft).
4. Install the third gear band assembly (16) into the transmission case assembly making sure that the band tangs lock into the servo pin and the 3rd gear band anchor bolt (64).

Scheme 112

Install the 4-5 clutch assembly (15) into the transmission case assembly, making sure not to disengage the third gear band assembly (16) from its holding points. When properly installed, the 4-5 clutch assembly (15) should spin freely by hand with no drag on the third gear band assembly (16).

J 45053 Universal Clamp Press

1. Inspect the front differential transfer drive gear assembly rear bearing assembly, located in the transmission case cover assembly, before installing the front differential transfer drive gear assembly (14) to be sure that all roller bearings are in the correct position.
2. Using J 45053 install the front differential transfer drive gear assembly (14) to the transmission case assembly.
3. Using the front differential transfer drive gear thrust bearing washer (264) without any letter markings, install onto the front differential transfer drive gear assembly (14).
4. Install the front differential transfer drive gear thrust bearing assembly (263) onto the front differential transfer drive gear thrust bearing washer (264).
5. When installing the 2nd design 1-2 reverse internal gear, place a straight edge on the top of the rollers on the thrust bearing to reach across to the case surface.
6. Using a feeler gage, measure (a) between the straight edge and the case. Specification: 1.269-1.645 mm (0.050-0.065 in)
7. If the measurement is not within specifications, refer to «Shim Size Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__shim-size-specifications) , Front Differential Transfer Drive Gear Thrust Bearing Washer (264), to select the correct thickness thrust washer.
8. If the measurement is not obtainable, using the thickest washer, the 1-2 reverse internal gear (594) will require removal and then a thicker shim (596) installed. Refer to «1-2-Reverse Carrier Gear Assembly Installation»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__1-2-reverse-carrier-gear-assembly-installation) .
9. Refer to «Shim Size Specifications»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__shim-size-specifications) , 1-2 Reverse Internal Gear Shim (596) to select the correct thickness of shim to obtain the correct measurement.
10. Install again the front differential drive gear (14), the thrust washer and the thrust bearing.
11. Measure the thrust bearing height (a) again to make sure it is in the specifications. If not within the specifications, adjust the height by changing the thrust washer.

Manual Shift Detent Lever and Park Pawl Installation

1. Install the park pawl pin spring (704).
2. Install the park pawl pin spring guide sleeve (705).
3. Install the park pawl bolt/screw (706). Tighten: Tighten the park pawl bolt to 10 N.m (89 lb in).
4. Install the park pawl spring pin (703).
5. Install the park pawl (702) and the park pawl actuator bracket (708).
6. Install the park pawl return spring (701).
7. Install the park pawl shaft (700).
8. Install the manual shift detent spring assembly (711).
9. Install and hand tighten the 14 mm manual shift detent lever spring bolt (712) and the 16.7 mm park pawl actuator bracket bolt (715). Tighten: Tighten the 14 mm manual shift detent lever spring bolt (712) to 5 N.m (44 lb in). Tighten the 16.7 mm park pawl actuator bracket bolt (715) to 10 N.m (89 lb in).
10. Install the park pawl actuator rod (709).
11. Install the manual shift detent lever assembly (710).
12. Connect the park pawl actuator rod (709) to the manual shift detent lever assembly (710).
13. Using a screwdriver, lift the manual shift detent lever spring (711) and rotate the manual shift detent lever assembly (710) into position.

Third Gear Band Apply Tube Installation

1. Install the 2 third gear band apply tube O-ring seals (53).
2. Install the third gear band apply tube (52).
3. If needed, lightly seat the third gear band apply tube into the transmission case assembly with a soft mallet.
4. Install the third gear band apply tube retainer (51).
5. Install the 2 - M6 x 1.0 x 14 mm third gear band apply tube retainer bolts (50). Tighten: Tighten the third gear band apply tube retainer bolts to 5 N.m (44 lb in).

Transmission Fluid Baffle Installation

1. Install the transmission case fluid passage cover (40).
2. Install the 2 - M6 x 1.0 x 14 mm transmission case fluid passage cover bolts (41). Tighten: Tighten the transmission case fluid passage cover bolts to 5 N.m (44 lb in).
3. Install the transmission fluid baffle (44).
4. Install the 3 - M6 x 1.0 x 14 mm transmission fluid baffle bolts (45). Tighten: Tighten the transmission fluid baffle bolts to 5 N.m (44 lb in).

Scheme 113

Note. Refer to FASTENER NOTICE in Cautions and Notices.

Install the transmission fluid filter assembly (42) and the M6 x 1.0 x 16.7 mm transmission fluid filter bolt (43) into the transmission case assembly.

Tighten: Tighten the transmission fluid filter bolt to 5 N.m (44 lb in).

Front Differential Assembly Cleaning and Inspection

1. Clean the front differential assembly in solvent and air dry.
2. Inspect the front differential ring gear for the following conditions: Chipped teeth Excessive wear Metal debris embedded in the teeth Abnormal wear pattern
3. Inspect the pinion gears and the side gears for damage or excessive wear.
4. Inspect the tapered roller bearings for the following conditions: Excessive wear Pits Brinneling Bent cages
5. On AWD models, inspect the splined stub shaft for excessive wear or damage.
6. If any of the above, conditions are found replace the front differential assembly. The front differential assembly is serviced only as a complete assembly.

Scheme 114

Install the front differential assembly (13) into the transmission case assembly.

Torque Converter Housing Cleaning and Inspection

1. Remove the transmission fluid baffle bolts/screws (807) and the transmission fluid baffle (803).
2. Remove the lube fluid pipe retainer bolt/screw (806).
3. Remove the lube fluid pipe retainer (805).
4. Remove the lube fluid pipe (804).
5. Inspect the torque converter housing for damage. If the bearings are faulty, the converter housing requires replacement.
6. Using a plastic hammer, install the lube fluid pipe (804).
7. Place the 3 chip collector magnets (808) onto the transmission fluid baffle (803).
8. Install the transmission fluid baffle (803) and the 3 - M6 x 1.0 x 14 mm transmission fluid baffle bolts (807). Tighten: Tighten the 3 transmission fluid baffle bolts to 5 N.m (44 lb in).
9. Install the lube fluid pipe retainer (805) and the M6 x 1.0 x 14 mm lube fluid pipe retainer bolt (806) into the torque converter housing assembly. Tighten: Tighten the bolt to 5 N.m (44 lb in).

Torque Converter Housing Installation

1. Remove the case fluid passage seal (89).
2. Install a NEW case fluid passage seal (89) into the transmission case assembly.
3. Apply a 3 mm (1/8 in) bead of sealant GM P/N 89020326 (Canadian P/N 89021188) on the inside of the bolt holes of the scaling flange of the torque converter housing assembly.
4. Install the torque converter housing assembly to the transmission case assembly.
5. Apply threadlocker GM P/N 12345382 (Canadian P/N 10953499), to the threads of all the torque converter housing bolts.
6. Install the 11 - M8 x 1.25 x 30 mm bolts (4) and hand tighten.
7. Install the 2 - M8 x 1.25 x 30 mm bolt/studs (3) and hand tighten.
8. Install the 2 - M8 x 1.25 x 35 mm bolts (6) and hand tighten.
9. Install the 1 - M8 x 1.25 x 45 mm bolt (7) and hand tighten.
10. Install the 1 - M8 x 1.25 x 30 mm TORX 40 bolt (8) and hand tighten.
11. Tighten the 17 torque converter housing bolts in sequence. Tighten: Tighten the torque converter housing bolts to 29 N.m (21 lb ft).

Second Coast Clutch Disassemble

Tools Required

1. J 23327 Clutch Spring Compressor
2. J 28585 Snap Ring Remover
3. J 41236 Coast Clutch Spring Compressor
4. J 45164 Spring Compressor Bridge. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Using J 45164 (2), J 21420-2 (4) and J 23327-2 (1), which are part of J 23327 , compress the second clutch spring. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. Using J 28585 (3), remove the second coast clutch backing plate retaining ring (230) from the fluid pump assembly.
3. Remove the clutch plates (227, 228, 229).
4. Install J 21420-2 (1) and J 23327-2 (3), which are part of J 23327 , and J 41236 (2) and compress the second coast clutch spring (224).
5. Remove the second coast clutch spring retaining ring (225) using snap ring pliers.
6. Remove the second coast clutch spring (224) from the fluid pump assembly.
7. While pulling upward on the piston by hand, apply compressed air into the fluid passage in the fluid pump assembly and remove the second coast clutch piston (222).
8. Remove the inner seal (221) and the outer seal (223) from the second coast clutch piston (222).

J 28585 Snap Ring Remover

1. Using J 28585 remove the second clutch backing plate retaining ring (220) from the fluid pump assembly.
2. Remove the second clutch backing plate (219).
3. Remove the 3 fiber plates (217).
4. Remove the 3 steel plates (218).
5. Remove the second clutch spring assembly (215).
6. Remove the second clutch spring assembly retaining ring (214).
7. While pulling on the piston by hand, apply compressed air into the fluid passage and remove the second clutch piston (210) and the second clutch piston sleeve (212).
8. Remove the second clutch piston outer seal (209) from the second clutch piston (210).
9. Remove the second clutch piston sleeve seals (211, 213) from the second clutch piston sleeve (212).

J 45000 Seal Remover

1. Remove 13 transmission fluid pump cover bolts (231) and 1 transmission fluid pump cover bolt (232) to separate the fluid pump body from the fluid pump stator shaft assembly (208).
2. Remove the fluid pump plate (207) from the fluid pump body (202).
3. Remove the fluid pump O-ring seal (206) from the fluid pump body (202).
4. Push the fluid pump driven gear (204) to one side of the fluid pump body (202). Using a feeler gage, measure the clearance between the fluid pump driven gear (204) and the fluid pump body (202). Specification: Driven gear to body clearance: 0.075 - 0.20 mm (0.002 - 0.007 in)
5. Using a feeler gage, measure between the fluid pump drive gear (205) teeth and the crescent shaped part of the fluid pump body (202). Specification: Drive gear tip to body clearance: 0.013 - 0.342 mm (0.0005 - 0.014 in)
6. Using a feeler gage, measure between the fluid pump driven gear (204) teeth and the crescent shaped part of the fluid pump body (202). Specification: Driven gear tip to body clearance: 0.004 - 0.298 mm (0.0001 - 0.618 in)
7. Using a steel straight edge and a feeler gage, measure the side clearance of both fluid pump gears in relationship to the fluid pump body. Specification: Side clearance of drive and driven gear to body: 0.03 - 0.10 mm (0.0012 - 0.004 in)
8. If any of the above measurements are not within specifications, replace the fluid pump assembly.
9. Remove the fluid pump drive gear (205) and the fluid pump driven gear (204).
10. Using J 45000 , remove the fluid pump seal assembly (200) from the fluid pump body (202).

J 45185 Bore Gage Set. See Special Tools .

1. Using the J 45185 , measure the inner diameter of the fluid pump body bushing. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Measure the bushing in different locations and take the average.
2. Use micrometer to measure J 45185 reading. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Specification: Fluid pump body bushing I.D: 38.113 - 38.188 mm (1.500 - 1.503 in)
3. Using the J 45185 , measure the inner diameter of the stator shaft bushing. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Measure the bushing in different locations and take the average.
4. Use micrometer to measure J 45185 reading. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Specification: Stator shaft bushing I.D: 22.201 - 22.257 mm (0.874 - 0.876 in)
5. Replace the fluid pump assembly if the measurements are greater than the specification.

J 35582 Oil Pump Seal Installer

1. Apply automatic transmission fluid to the inner fluid pump seal surface of the fluid pump body.
2. Using J 35582 , install a new fluid pump seal assembly (200). The seal end should be flush with the outer edge of the fluid pump body.
3. Apply automatic transmission fluid to the surface of the fluid pump body.
4. Install the fluid pump drive gear (205) and the fluid pump driven gear (204) to the fluid pump body (202).
5. Apply automatic transmission fluid to the new fluid pump O-ring seal (206).
6. Install the new fluid pump O-ring seal (206) onto the fluid pump body (202).
7. Align the fluid pump plate (207) holes with the alignment pins (203) in the fluid pump body (202).
8. Align the fluid pump stator shaft assembly (208) with each bolt hole of the fluid pump plate (207).
9. Install, and hand tighten, 12 of the 13 - M6 x 1.0 x 14.5 mm fluid pump cover bolts (231) and 1 - M5 x 0.8 x 17 mm fluid pump cover bolt (232).
10. Leave out the remaining M6 x 1.0 x 14.5 mm fluid pump cover bolt (231) from the hole indicated by the arrow in the graphic. Set the bolt aside to be installed later.
11. Tighten the fluid pump cover bolts in sequence. Tighten: Tighten the 12 - M6 x 1.0 x 14.5 mm fluid pump cover bolts (231) to 12 N.m (106 lb in). Tighten the 1 - M5 x 0.8 x 17 mm fluid pump cover bolt (232) to 7 N.m (62 lb in).
12. Inspect the fluid pump gears for rotating smoothly. Install the fluid pump assembly on the torque converter. Rotate the body of the fluid pump assembly. Ensure the fluid pump seal was not damaged.

J 28585 Snap Ring Remover

1. Inspect that the sliding surface of the clutch plates are not worn or burnt. If the clutch plates are worn or burnt, replace them.
2. Apply automatic transmission fluid to the new second clutch piston and second clutch piston sleeve seals.
3. Install the new second clutch piston outer seal (209) onto the second clutch piston (210).
4. Install the new second clutch piston sleeve seals (211, 213) onto the second clutch piston sleeve (212).
5. Apply automatic transmission fluid to the inner surfaces of the fluid pump stator shaft assembly.
6. Press the second clutch piston (210) and the second clutch piston sleeve (212) into the fluid pump stator shaft assembly.
7. Install the second clutch spring assembly retaining ring (214).
8. Install the second clutch spring assembly (215) onto the second clutch piston with the spring side up.
9. Install the 3 steel plates (218) and the 3 fiber plates (217).
10. Install the second clutch backing plate (219).
11. Using J 28585 install the second clutch backing plate retaining ring (220). Make sure that the end gap of the retaining ring is not aligned with any of the cutouts.

Second Coast Clutch Assemble

Tools Required

1. J 28585 Snap Ring Remover
2. J 23327 Clutch Spring Compressor
3. J 41236 Coast Clutch Spring Compressor
4. J 45164 Spring Compressor Bridge. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Apply automatic transmission fluid to the new second coast clutch piston seals.
2. Install the new inner seal (221) and the outer seal (223) onto the second coast clutch piston (222).
3. Apply automatic transmission fluid to the inner surfaces of the fluid pump stator shaft assembly.
4. Press the second coast clutch piston (222) into the fluid pump stator shaft assembly.
5. Install the second coast clutch spring assembly (224) making sure to index the springs into the notches in the second coast clutch piston.
6. Place the J 21420-2 (1) and J 23327-2 (3), which are part of J 23327 , and J 41236 (2) on the second coast clutch spring (224), and compress the springs.
7. Using snap ring pliers, install the second coast clutch spring retaining ring (225) into the groove of the fluid pump stator shaft assembly.
8. Install a steel plate (227) then a fiber plate (228). Repeat this sequence until all 6 plates have been installed.
9. Install the second coast clutch backing plate (229).
10. Using J 45164 (2), J 21420-2 (4) and J 23327-2 (1), which are part of J 23327 , compress the second clutch spring. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
11. Using J 28585 (3), install the second coast clutch backing plate retaining ring (230) into the groove of the fluid pump stator shaft assembly.

Second Clutch Piston Travel Measurement

Tools Required

1. J 45166 Dial Indicator Extension Rod - 8 inch". See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. J 45200 Dial Indicator Set. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Install J 45166 into the fluid pump assembly bolt hole (1) indicated with the arrow. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. Assemble J 45200 (1) onto J 45166 (2) and set the dial indicator to zero on the second clutch piston. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
3. Apply compressed air into the second clutch fluid passage (B2) and measure the piston stroke. Be sure the piston moves smoothly.
4. If the piston stroke is out of specifications, select another second clutch backing plate. Specification: Second clutch piston bore stroke: 1.10 - 1.50 mm (0.043 - 0.059 in)

Second Coast Clutch Piston Travel Measurement

Tools Required

1. J 45166 Dial Indicator Extension Rod - 8 inch". See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
2. J 45200 Dial Indicator Set. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

1. Using the same special tool setup used to measure the second clutch piston travel, relocate the dial indicator onto the second coast clutch piston and zero the dial indicator.
2. Apply compressed air into the second coast clutch fluid passage (B1) and measure the piston stroke. Be sure the piston moves smoothly. Specification: Second coast clutch piston bore stroke: 1.24 - 1.96 mm (0.049 - 0.077 in)
3. If the piston stroke is out of specifications, ensure the clutch plates are assembled correctly and not worn.
4. Remove the tools.
5. Install the remaining M6 x 1.0 x 14.5 mm fluid pump cover bolt (231) into the hole where J 45166 (2) was located. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) . Tighten: Tighten the fluid pump cover bolt (231) to 12 N.m (106 lb in).

Second Coast, Second Clutch Hub and Second Clutch Sprag Disassemble

1. Remove the second clutch sprag outer race thrust washer (506) from the second clutch sprag outer race assembly (505).
2. Remove the second coast clutch hub (500) from the second clutch sprag outer race assembly (505).
3. Remove the coast clutch hub thrust washer (501) from the second clutch sprag outer race assembly (505).
4. Remove the second clutch sprag end bearing (502).
5. Remove the second clutch sprag assembly (503).
6. Remove the second clutch end bearing (502).

J 36850 Transjel Lubricant

1. Install the second clutch sprag end bearing (502).
2. Install the second clutch sprag assembly (503) rotating counter clockwise while installing. If the sprag assembly will not rotate counter clockwise turn over and install again.
3. Install the second clutch sprag end bearing (502).
4. Apply J 36850 to the second coast clutch hub thrust washer (501).
5. Align the tab of the washer with the hollow of the second coast clutch hub (500).
6. Install the second coast clutch hub thrust washer (501) onto the second coast clutch hub (500).
7. While turning the second coast clutch hub (500) clockwise, slide it into the second clutch sprag outer race assembly (505).
8. Hold the second clutch sprag outer race assembly, and inspect that the second coast clutch hub turns freely clockwise (2) and locks counterclockwise (1). If the hub does not turn clockwise turn the sprag race assembly over.
9. Install the second clutch sprag outer race thrust washer (506) aligning the tabs with the hollow of the second clutch sprag outer race assembly (505).

Fluid Pump Installation

Tools Required

1. J 36850 Transjel Lubricant
2. J 45053 Universal Clamp Press

1. Apply J 36850 to the coast clutch hub thrust washer (226).
2. Install the coast clutch hub thrust washer (226) with the flat surface facing up, and with the tangs engaged into the second coast clutch spring (224).
3. While holding the second coast clutch hub and sprag assembly (11) together, install into the fluid pump assembly.
4. Place a straight edge on top of the second clutch sprag outer race thrust washer.
5. Measure the distance (b) from the bottom of the straight edge and the fluid pump assembly. Specification: Installed height: 51.09 - 51.71 mm (2.011 - 2.036 in)
6. If the installed height is greater than specifications, the second coast clutch hub did not clear all the second clutch fiber plates. Index again the clutch hub and plates until within specifications.
7. Rotate the transmission assembly as shown.
8. Install the J 45053 on the fluid pump assembly. Do not allow the second clutch sprag assembly to separate from the clutch plates. Back out the forcing screw of the J 45053 to ensure, ample clearance of the input shaft.
9. Install the fluid pump assembly. Do not allow the input shaft splines to touch the bushings in the fluid pump assembly. Align the holes of the fluid pump assembly to the transmission case. Do not allow the second clutch sprag assembly to separate from the clutch plates.
10. Lightly press the fluid pump body into the transmission case assembly in order to seat the fluid pump assembly in place.
11. Install the 8 - M8 x 1.25 x 28 mm fluid pump to case bolts (5) and hand tighten.
12. Rotate the transmission assembly so that the fluid pump assembly is facing up.
13. Tighten the fluid pump to case bolts in the correct sequence. Tighten: Tighten the fluid pump to case bolts to 25 N.m (18 lb ft).

Control Valve Body Assembly Disassemble

1. Remove the manual valve (337).
2. Remove the bolt (307), the wiring harness clip (318), and the TCC lock up pressure control solenoid valve retainer (319).
3. Remove the TCC lock up pressure control solenoid valve assembly (339).
4. Remove the bolt (311), and control valve body solenoid valve retainer (312).
5. Remove the line pressure control solenoid valve assembly (316) and the shift pressure control solenoid valve assembly (340).
6. Remove the 5 solenoid retaining bolts (1-301, 2-302, 2-307).
7. Remove the 5 shift solenoid valves (300, 303, 305, 308, 310), and the 5 shift solenoid valve O-ring seals (306).
8. Remove the 7 front control valve body bolts (1-304, 4-313, 2-314).
9. Remove the front control valve body assembly (315), spacer plate and gaskets as an assembly from the middle control valve body assembly (323).
10. Remove the following from the middle control valve body: 3 fluid strainers (371) 1 fluid strainer (372) 2 accumulator check valve assemblies (353)
11. Remove the bolt (304) from the middle control valve body.
12. Turn the middle control valve body over in order to remove the remaining bolts.
13. Remove the 5 bolts (331, 332) from the No. 2 rear control valve body assembly.
14. Remove the No. 2 rear control valve body assembly (330), the spacer plate and the gaskets as an assembly from the rear control valve body assembly (326).
15. Remove the 3 rear control valve body bolts (333, 335).
16. Remove the rear control valve body assembly (326) from the middle control valve body assembly (323).

Middle Control Valve Body Disassemble

1. Remove the TCC check valve (382).
2. Remove the TCC check valve spring (383).
3. Remove the cooler by-pass valve (381).
4. Remove the cooler by-pass valve spring (380).
5. Remove the 5 accumulator check valve assemblies (353).
6. Remove the sleeve/bore plug retainer (362).
7. Remove the primary regulator valve sleeve (398).
8. Remove the primary regulator valve plunger (397).
9. Remove the primary regulator valve spring (396).
10. Remove the primary regulator valve (395).
11. Remove the sleeve/bore plug retainer (362).
12. Remove the U2 shift valve bore plug (394).
13. Remove the U2 shift valve spring (393).
14. Remove the U2 shift valve (392).
15. Remove the sleeve/bore plug retainer (362).
16. Remove the M1 shift valve bore plug (391).
17. Remove the M1 shift valve spring (390).
18. Remove the M1 shift valve (389).
19. Remove the sleeve/bore plug retainer (362).
20. Remove the U2 shift valve bore plug (394).
21. Remove the U1 shift valve spring (387).
22. Remove the U1 shift valve (386).
23. Remove the sleeve/bore plug retainer (362).
24. Remove the U2 shift valve bore plug (394).
25. Remove the 3rd gear band (B4) release valve (385).
26. Remove the 3rd gear band (B4) release valve spring (384).
27. Remove the sleeve/bore plug retainer (362).
28. Remove the solenoid relay valve sleeve (376).
29. Remove the solenoid relay valve plunger (377).
30. Remove the solenoid relay valve (378).
31. Remove the solenoid relay valve spring (379).
32. Remove the sleeve/bore plug retainer (362).
33. Remove the reverse shift ball check valve bushing - outer (375).
34. Remove the reverse shift ball check valve (374).
35. Remove the reverse shift ball check valve bushing - inner (373).

Middle Control Valve Body Assemble

1. Inspect the middle control valve body (370) casting for the following conditions: Porosity Cracks Damaged machine surface Chips or debris Damage to valve bores
2. Inspect all valves, springs, bushings, and clean all components in clean solvent.
3. Install the reverse shift ball check valve bushing - inner (373).
4. Install the reverse shift ball check valve (374).
5. Install the reverse shift ball check valve bushing - outer (375).
6. Install the sleeve/bore plug retainer (362).
7. Install the solenoid relay valve spring (379).
8. Install the solenoid relay valve (378).
9. Install the solenoid relay valve plunger (377).
10. Install the solenoid relay valve sleeve (376).
11. Install the sleeve/bore plug retainer (362).
12. Install the 3rd gear band (B4) release valve spring (384).
13. Install the 3rd gear band (B4) release valve (385).
14. Install the U2 shift valve bore plug (394).
15. Install the sleeve/bore plug retainer (362).
16. Install the U1 shift valve (386).
17. Install the U1 shift valve spring (387).
18. Install the U2 shift valve bore plug (394).
19. Install the sleeve/bore plug retainer (362).
20. Install the M1 shift valve (389).
21. Install the M1 shift valve spring (390).
22. Install the M1 shift valve bore plug (391).
23. Install the sleeve/bore plug retainer (362).
24. Install the U2 shift valve (392).
25. Install the U2 shift valve spring (393).
26. Install the U2 shift valve bore plug (394).
27. Install the sleeve/bore plug retainer (362).
28. Install the primary regulator valve (395).
29. Install the primary regulator valve spring (396).
30. Install the primary regulator valve plunger (397).
31. Install the primary regulator valve sleeve (398).
32. Install the sleeve/bore plug retainer (362).
33. Install the 5 accumulator check valve assemblies (353).
34. Install the cooler by-pass valve spring (380).
35. Install the cooler by-pass valve (381).
36. Install the TCC check valve spring (383).
37. Install the TCC check valve (382).

Rear Control Valve Body Disassemble

1. Remove the spacer plate and gasket assembly (324) from the rear control valve body assembly (326).
2. Remove the 7 rear valve body cover plate bolts (421).
3. Remove the rear valve body cover plate (420).
4. Remove the rear valve body cover plate gasket (419).
5. Remove the secondary regulator valve spring (437).
6. Remove the secondary regulator valve (436).
7. Remove the line pressure control (SLT) accumulator piston spring - inner (435).
8. Remove the line pressure control (SLT) accumulator piston spring - outer (434).
9. Remove the line pressure control (SLT) accumulator piston (433).
10. Remove the shift pressure control valve plunger sleeve (432).
11. Remove the shift pressure control valve plunger (431).
12. Remove the shift pressure control valve (430).
13. Remove the shift pressure control valve spring (429).
14. Remove the shift pressure control valve sleeve (428).
15. Remove the M2 shift valve spring (427).
16. Remove the M2 shift valve (426).
17. Remove the shift pressure relay valve spring (425).
18. Remove the shift pressure relay valve (424).
19. Remove the third gear band (B4) control valve (423).
20. Remove the third gear band (B4) control valve spring (422).
21. Remove the 2 rear valve body cover plate bolts (416).
22. Remove the rear valve body cover plate (417).
23. Remove the rear valve body cover plate gasket (418).
24. Remove the lock up relay control valve sleeve (412).
25. Remove the lock up relay control valve plunger (413).
26. Remove the lock up relay valve spring (414).
27. Remove the lock up relay valve (415).
28. Remove the 1-2 reverse clutch (B5) control valve (411).

Rear Control Valve Body Assemble

1. Inspect the rear control valve body (410) casting for the following conditions: Porosity Cracks Damaged machine surface Chips or debris Damage to valve bores
2. Inspect all valves, springs, bushings, and clean all components in clean solvent.
3. Install the 1-2 reverse clutch (B5) control valve (411).
4. Install the lock up relay valve (415).
5. Install the lock up relay valve spring (414).
6. Install the lock up relay control valve plunger (413).
7. Install the lock up relay control valve sleeve (412).
8. Install the rear valve body cover plate gasket (418).
9. Install the rear valve body cover plate (417).
10. Install the 2 - M5 x 0.8 x 13 mm rear valve body cover plate bolts (416). Tighten: Tighten the cover plate bolts to 7 N.m (62 lb in).
11. Install the third gear band (B4) control valve spring (422).
12. Install the third gear band (B4) control valve (423).
13. Install the shift pressure relay valve (424).
14. Install the shift pressure relay valve spring (425).
15. Install the M2 shift valve (426).
16. Install the M2 shift valve spring (427).
17. Install the shift pressure control valve sleeve (428).
18. Install the shift pressure control valve spring (429).
19. Install the shift pressure control valve (430).
20. Install the shift pressure control valve plunger (431).
21. Install the shift pressure control valve plunger sleeve (432).
22. Install the line pressure control (SLT) accumulator piston (433).
23. Install the line pressure control (SLT) accumulator piston spring - outer (434).
24. Install the line pressure control (SLT) accumulator piston spring - inner (435).
25. Install the secondary regulator valve (436).
26. Install the secondary regulator valve spring (437).
27. Install the rear valve body cover plate gasket (419).
28. Install the rear valve body cover plate (420).
29. Install the 7 - M5 x 0.8 x 13 mm rear valve body cover plate bolts (421). Tighten: Tighten the cover plate bolts to 7 N.m (62 lb in).

No. 2 Rear Control Valve Body Disassemble

1. Remove the gasket (327).
2. Remove the rear control valve body assembly spacer plate (328).
3. Remove the gasket (329).
4. Remove the TCC check valve (450).
5. Remove the TCC check valve spring (449).
6. Remove the 2 accumulator check valve assemblies (353).
7. Remove the sleeve/bore plug retainer (459).
8. Remove the reverse shift restrict ball check valve bushing - outer (453).
9. Remove the reverse shift restrict ball check valve (452).
10. Remove the reverse shift restrict ball check valve bushing - inner (451).
11. Remove the sleeve/bore plug retainer (458).
12. Remove the lock up control valve sleeve (457).
13. Remove the lock up control valve spring (456).
14. Remove the lock up control valve plunger (455).
15. Remove the lock up control valve (454).
16. Remove the sleeve/bore plug retainer (459).
17. Remove the second clutch (B2) control valve plug (448).
18. Remove the second clutch (B2) control valve spring (447).
19. Remove the second clutch (B2) control valve (446).

No. 2 Rear Control Valve Body Assemble

1. Inspect the No. 2 rear control valve body (445) casting for the following conditions: Porosity Cracks Damaged machine surface Chips or debris Damage to valve bores
2. Inspect all valves, springs, bushings, and clean all components in clean solvent.
3. Install the second clutch (B2) control valve (446).
4. Install the second clutch (B2) control valve spring (447).
5. Install the second clutch (B2) control valve plug (448).
6. Install the sleeve/bore plug retainer (459).
7. Install the lock up control valve (454).
8. Install the lock up control valve plunger (455).
9. Install the lock up control valve spring (456).
10. Install the lock up control valve sleeve (457).
11. Install the sleeve/bore plug retainer (458).
12. Install the reverse shift restrict ball check valve bushing - inner (451).
13. Install the reverse shift restrict ball check valve (452).
14. Install the reverse shift restrict ball check valve bushing - outer (453).
15. Install the sleeve/bore plug retainer (459).
16. Install the 2 accumulator check valve assemblies (353).
17. Install the TCC check valve spring (449).
18. Install the TCC check valve (450).

Front Control Valve Body Disassemble

1. Remove the gasket (322).
2. Remove the front control valve body spacer plate (321).
3. Remove the gasket (320).
4. Remove the ball check valve (355).
5. Remove the fluid strainer (352).
6. Remove the pressure relief valve (351).
7. Remove the pressure relief valve spring (350).
8. Remove the 2 check valves (360).
9. Remove the 2 check valve compression springs (361).
10. Remove the sleeve/bore plug retainer (349).
11. Remove the solenoid modulator valve bore plug (348).
12. Remove the forward clutch (C1) control valve (354).
13. Remove the sleeve/bore plug retainer (349).
14. Remove the solenoid modulator valve bore plug (348).
15. Remove the neutral relay valve spring (357).
16. Remove the neutral relay valve (356).
17. Remove the sleeve/bore plug retainer (349).
18. Remove the solenoid modulator valve bore plug (348).
19. Remove the second coast clutch (B1) control valve (359).
20. Remove the second coast clutch (B1) control valve spring (358).
21. Remove the sleeve/bore plug retainer (349).
22. Remove the solenoid modulator valve bore plug (348).
23. Remove the solenoid modulator valve spring (347).
24. Remove the solenoid modulator valve (346).

Front Control Valve Body Assemble

1. Inspect the front control valve body (345) casting for the following conditions: Porosity Cracks Damaged machine surface Chips or debris Damage to valve bores
2. Inspect all valves, springs, bushings, and clean all components in clean solvent.
3. Install the solenoid modulator valve (346).
4. Install the solenoid modulator valve spring (347).
5. Install the solenoid modulator valve bore plug (348).
6. Install the sleeve/bore plug retainer (349).
7. Install the second coast clutch (B1) control valve spring (358).
8. Install the second coast clutch (B1) control valve (359).
9. Install the solenoid modulator valve bore plug (348).
10. Install the sleeve/bore plug retainer (349).
11. Install the neutral relay valve (356).
12. Install the neutral relay valve spring (357).
13. Install the solenoid modulator valve bore plug (348).
14. Install the sleeve/bore plug retainer (349).
15. Install the forward clutch (C1) control valve (354).
16. Install the solenoid modulator valve bore plug (348).
17. Install the sleeve/bore plug retainer (349).
18. Install the pressure relief valve spring (350).
19. Install the pressure relief valve (351).
20. Install the fluid strainer (352).
21. Install the ball check valve (355).
22. Install the 2 check valve compression springs (361).
23. Install the 2 check valves (360).

Control Valve Body Assembly Assemble

1. Install the new spacer plate and gasket assembly (324) onto the rear control valve body assembly (326).
2. Install the rear control valve body assembly (326) onto the middle control valve body assembly (323).
3. Install 2 - M5 x 0.8 x 35 mm rear control valve body bolts (335).
4. Install 1 - M5 x 0.8 x 40 mm rear control valve body bolt (333).
5. Hand tighten the 3 rear control valve body assembly bolts (333, 335).
6. Install the spacer plate (328) and the 2 new gaskets (327, 329) onto the No. 2 rear control valve body assembly (330).
7. Install the No. 2 rear control valve body assembly (330) onto the rear control valve body assembly (326).
8. Install 1 - M5 x 0.8 x 76 mm control valve body bolt (331) into the No. 2 rear control valve body assembly.
9. Install 4 - M5 x 0.8 x 49.5 mm control valve body bolts (332) into the No. 2 rear control valve body assembly.
10. Hand tighten the 5 control valve body assembly bolts (331, 332).
11. Turn the valve body assembly over.
12. Install the M5 x 0.8 x 50 mm control valve body bolt (304) and hand tighten.
13. Install the 3 fluid strainers (371), 1 fluid strainer (372), and the 2 accumulator check valve assemblies (353) into the middle control valve body assembly.
14. Install the gasket (320) to the front control valve body assembly (315).
15. Install the front control valve body spacer plate (321).
16. Install the gasket (322).
17. Install the spacer plate and gaskets on to the front control valve body assembly (315).
18. Install the front control valve body assembly (315) onto the middle control valve body assembly (323).
19. Install 1 - M5 x 0.8 x 50 mm control valve body bolt (304) into the front control valve body assembly and hand tighten.
20. Install 4 or 5- M5 x 0.8 x 20 mm control valve body bolts (313) into the front control valve body assembly and hand tighten.
21. Install 2 - M5 x 0.8 x 16 mm control valve body bolts (314) into the front control valve body assembly and hand tighten.
22. Tighten all 16 control valve body assembly bolts, evenly and gradually. Tighten: Tighten the control valve body assembly bolts to 7 N.m (62 lb in).
23. Replace the O-ring seals (306) on each of the 5 shift solenoid valves (300, 303, 305, 308, 310).
24. Install the 5 shift solenoid valves (300, 303, 305, 308, 310).
25. Install the 5 shift solenoid valve retaining bolts. 1 - (301) - M5 x 0.8 x 62 mm 2 - (302) - M5 x 0.8 x 28 mm 2 - (307) - M5 x 0.8 x 10 mm
26. Tighten the 5 shift solenoid valve retaining bolts (301, 302, 307). Tighten: Tighten the shift solenoid valve retaining bolts to 7 N.m (62 lb in).
27. Install the line pressure control solenoid valve assembly (316) and the shift pressure control solenoid valve assembly (340).
28. Install the control valve body solenoid valve retainer (312) and 1 - M5 x 0.8 x 13 mm control valve body bolt (311). Tighten: Tighten the control valve body bolt to 7 N.m (62 lb in).
29. Install the TCC lock up pressure control solenoid valve assembly (339).
30. Install the TCC lock up pressure control solenoid valve retainer (319), the wiring harness clip (318), and 1 - M5 x 0.8 x 10 mm control valve body bolt/screw (307). Tighten: Tighten the control valve body bolt to 7 N.m (62 lb in).
31. Install the manual valve (337) into the middle control valve body assembly.

Control Valve Body Assembly Installation

1. Rotate the transmission assembly so that the I.D. tag is facing up.
2. Install 2 new case fluid passage seals (86) into the transmission case fluid ports.
3. Shift the transmission into Neutral (N).
4. While holding the control valve body assembly (39), connect the manual valve link (336) to the manual shift detent lever assembly (710).
5. Install the 6 control valve body assembly to transmission case bolts and hand tighten. 2 - M6 x 1.0 x 16 mm (34) 2 - M6 x 1.0 x 28 mm (35) 2 - M6 x 1.0 x 55 mm (47)
6. Tighten the control valve body assembly to transmission case bolts in sequence. Tighten: Tighten the control valve body assembly to transmission case bolts to 10 N.m (89 lb in).
7. Install a new control valve body fluid passage cover gasket (38).
8. Install the control valve body fluid passage cover (37).
9. Install the 2 - M6 x 1.0 x 50 mm control valve body bolts. Tighten: Tighten the control valve body bolts to 10 N.m (89 lb in).

Wiring Harness Installation

1. Apply automatic transmission fluid to a new transmission wiring connector O-ring seal (46).
2. Install the new transmission wiring connector O-ring seal (46) onto the transmission wiring harness assembly (33).
3. Install the transmission wiring harness assembly (33) into the transmission case assembly through the wiring harness bore.
4. Apply automatic transmission fluid to the new transmission fluid temperature sensor O-ring seal (32).
5. Install the new transmission fluid temperature sensor O-ring seal (32) into the groove of the transmission fluid temperature sensor (36).
6. Install the transmission fluid temperature sensor (36) into the front control valve body fluid temperature sensor bore.
7. Install the transmission fluid temperature sensor clip (49).
8. Install the 1 - M6 x 1.0 x 55 mm fluid temperature sensor bolt (31). Tighten: Tighten the fluid temperature sensor bolt to 10 N.m (89 lb in).
9. Connect the 8 solenoid wire connectors as follows: 1 - blue 2 - black 3 - green 4 - black 5 - blue 6 - gray 7 - brown 8 - black
10. Position the wiring harness in the wiring harness clip.

Control Valve Body Cover Installation

1. Clean any gasket material from the control valve body cover and inspect the gasket mounting surface.
2. Apply a 3 mm (1/8 in) bead of sealant GM P/N 89020326 (Canadian P/N 89021188), to the cover mounting surface.
3. Install the control valve body cover (29) onto the transmission case assembly.
4. Apply threadlocker GM P/N 12345382 (Canadian P/N 10953489), to the threads of all of the cover bolts.
5. Install the 9 - M8 x 1.25 x 15.5 mm control valve body cover bolts (28).
6. Tighten the 9 control valve body cover bolts in sequence. Tighten: Tighten the control valve body cover bolts to 13 N.m (10 lb ft).

J 45404 Transmission Indicator Alignment Tool. See Special Tools .

1. Install the park/neutral position switch (75) to the manual shift detent lever assembly.
2. Install the park/neutral position switch stud (76), bolt (79), and flat washers (69) and hand tighten until tight enough to hold the park/neutral position switch in place, but still loose enough to allow adjustment by hand.
3. Install the park/neutral position switch flat washer (74), lock tab washer (77), and nut (78). Tighten: Tighten the park/neutral position switch nut to 7 N.m (62 lb in).
4. Bend the tabs on the lock tab washer to secure the nut.
5. Place the manual shift detent lever assembly in the Neutral (N) position.
6. Install the J 45404 to the manual shift detent lever assembly. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
7. Rotate the park/neutral position switch until the neutral base line on the switch assembly lines up with the indicator line on J 45404 . See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .
8. Tighten the park/neutral position switch stud (76) and the park/neutral position switch bolt (79). Tighten: Tighten the park/neutral position switch stud and bolt to 25 N.m (18 lb in).
9. Remove J 45404 from the manual shift detent lever assembly. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

Input Speed Sensor Installation

1. Apply automatic transmission fluid to the new input speed sensor O-ring seal (71).
2. Install the new input speed sensor O-ring seal (71) onto the input speed sensor (73).
3. Install the input speed sensor (73) into the transmission case assembly (17).
4. Install the M6 x 1.0 x 16 mm input speed sensor bolt (72). Tighten: Tighten the input speed sensor bolt (72) to 5 N.m (44 lb in).

Output Speed Sensor Installation

1. Apply automatic transmission fluid to the new output speed sensor O-ring seal (63).
2. Install the new output speed sensor O-ring seal (63) onto the output speed sensor (62).
3. Install the output speed sensor (62) into the transmission case assembly (17).
4. Install the M6 x 1.0 x 16 mm output speed sensor bolt (61). Tighten: Tighten the output speed sensor bolt to 5 N.m (44 lb in).

Drain Plug Installation

1. Install a new gasket (820) on the drain plug (819).
2. Install the drain plug (819) into the case assembly (17). Tighten: Tighten the drain plug to 39 N.m (29 lb ft).
3. Install the vent hose assembly.
4. Install a new o-ring (824) on the transmission fluid level indicator and lubricate with transmission fluid.
5. Install the transmission fluid level indicator.
6. Install the transmission fluid level indicator bolt. Tighten: Tighten the indicator bolt to 10 N.m (89 lb in).

J 45159 Holding Fixture. See Special Tools .

1. Loosen the bolt (2) holding the bracket to the fixture body.
2. Remove the bracket bolt (3) from the transaxle.
3. Remove the 2 bolts (1) holding the fixture to the transaxle.
4. Remove the J 45159 from the transaxle. See «Special Tools»(/chevrolet/equinox/i-2004-2009/remont/automatic-trans/#automatic-transaxle-af33-5-overhaul__special-tools) .

Torque Converter Assembly Installation

1. Install the torque converter.
2. Measure dimension C.
3. If dimension C is not within specifications, rotate the torque converter to index it to the pump. Installation Height: Dimension C should be 12.5 mm (0.492 in).

Park - Engine Running

With the gear selector lever in the PARK (P) position and the engine running, the line pressure from the fluid pump assembly is directed to various components in the control valve body assembly and the transmission case assembly.

Manual Valve

Mechanically controlled by the gear selector lever, the manual valve is in the PARK (P) position and prevents line (2) pressure from the primary regulator valve from entering the drive (19) and reverse (22) fluid circuits.

Reverse, 1st Shift Solenoid (SS) Valve Assembly (S1)

Line (2) fluid passes through orifice #3 into the S1 signal (14) fluid circuit in preparation for a shift. The normally open reverse, 1st SS valve assembly is OFF, allowing any fluid pressure in the S1 signal (14) fluid circuit to exhaust through the solenoid.

3-4, 4-5 Shift Solenoid (SS) Valve Assembly (S4)

Line (2) fluid passes through orifice #4 into the S4 signal (17) fluid circuit in preparation for a shift. The normally open 3-4, 4-5 SS valve assembly is OFF, allowing any fluid pressure in the S4 signal (17) fluid circuit to exhaust through the solenoid.

Reverse Shift Solenoid (SS) Valve Assembly (S5)

Line (2) fluid passes through orifice #5 into the S5 signal (18) fluid circuit. The normally closed reverse SS valve assembly is OFF, causing fluid pressure to build-up in the S5 signal (18) fluid circuit.

Shift Pressure Relay Valve

S5 signal (18) fluid is routed to the shift pressure relay valve and applies the valve against spring force.

U1 Shift Valve

Line (2) fluid is also routed to the U1 shift valve and passes through the valve into the 1-2 reverse clutch (39) fluid circuit.

1-2 Reverse Clutch (B5) Assembly

1-2 reverse clutch (39) fluid enters the automatic transmission case cover assembly and moves the 1-2 reverse clutch piston against spring force to apply the 1-2 reverse clutch plates. In PARK range, the 1-2 reverse clutch has no effect. However, when REVERSE or a forward range is selected, only one apply device has to be energized, which helps create a smooth starting motion.

Lock Up Relay Valve

1-2 reverse clutch (39) fluid is also routed to the lock up relay valve. Here it assists converter feed (3) fluid pressure and spring force to hold the valve in the released position, thus preventing torque converter clutch apply.

PASSAGES

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 115

Reverse

When the gear selector lever is moved to the REVERSE (R) position (from the PARK position) the following changes occur in the transmission's hydraulic and electrical systems.

With the manual valve in the REVERSE position, line (2) pressure is directed into the reverse (22) fluid circuit.

Primary Pressure Regulator Valve

Reverse (22) fluid pressure, at the primary regulator valve plunger, boosts line (2) pressure for the additional torque requirements in REVERSE. Throttle signal (10) fluid pressure from the line pressure control solenoid valve (SLT) acting on the primary regulator valve plunger also helps determine line (2) pressure in REVERSE depending on throttle position and other TCM input signals.

#7 Accumulator Check Valve Assembly

Reverse (22) fluid pressure is routed to the #7 accumulator check valve assembly where it passes into the reverse clutch (23) circuit. Reverse (22) fluid pressure moves the check valve against spring force in order to cushion the apply of the low and reverse clutch.

M1 Shift Valve

Reverse clutch (23) fluid passes through the M1 shift valve into the low and reverse clutch (24) fluid circuit.

Low and Reverse Clutch (B3) Assembly

Low and reverse clutch (24) fluid is routed to the low and reverse clutch piston to apply the low and reverse clutch plates.

The normally closed reverse SS valve assembly is energized, allowing fluid pressure in the S5 signal (18) fluid circuit to exhaust through the solenoid.

#6 Reverse Shift Ball Check Valve

Reverse (22) fluid seats the reverse shift ball check valve against the drive (19) fluid passage and enters the drive or reverse (20) fluid passage.

S5 signal (18) fluid is exhausted from the shift pressure relay valve and spring force moves the valve to the released position to allow drive or reverse (20) fluid to enter the direct clutch feed 1 (27) fluid circuit.

Direct clutch feed 1 (27) fluid passes through the M1 shift valve into the direct clutch feed 2 (28) fluid circuit.

M2 Shift Valve

Direct clutch feed 2 (28) fluid passes through the M2 shift valve into the direct clutch (29) fluid circuit.

#1 Accumulator Check Valve Assembly

Direct clutch (29) fluid pressure is routed to the #1 accumulator check valve assembly and moves the check valve against spring force in order to cushion the apply of the direct clutch.

Direct Clutch (C2) Assembly

Direct clutch (29) fluid is routed to the direct clutch piston to apply the direct clutch plates.

1-2, 2-3, Reverse Shift Solenoid (SS) Valve Assembly (S3)

The normally closed 1-2, 2-3, reverse SS valve assembly is energized. However, because there is no fluid supplied to the circuit, the 1-2, 2-3, reverse SS valve assembly has no effect in REVERSE.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 116

Reverse Inhibit

If vehicle speed becomes greater than 12 km/h (7 mph) while the transmission is operating in REVERSE, the TCM commands the following changes to the transmission's hydraulic and electrical systems in order to inhibit reverse operation and prevent damage to the transmission.

The reverse, 1st SS valve assembly is energized, causing fluid pressure to build-up in the S1 signal (14) fluid circuit.

S1 signal (14) fluid is routed to the U1 shift valve and passes through the valve into the reverse inhibit (52) fluid circuit.

Reverse inhibit (52) fluid is routed to the M1 shift valve and applies the valve against spring force.

The reverse SS valve assembly is de-energized, causing fluid pressure to build-up in the S5 signal (18) fluid circuit.

S5 signal (18) fluid is routed to the shift pressure relay valve and applies the valve against spring force.

When the M1 shift valve is shifted to the applied position, reverse clutch (23) fluid is blocked and low and reverse clutch (24) fluid exhausts through the valve allowing the low and reverse clutch assembly to release.

Exhausting low and reverse clutch (24) fluid is routed into the B5 control 2 (38) fluid passage at the M1 shift valve, the B5 control 1 (37) fluid passage at the solenoid relay valve, the reverse control (25) fluid passage at the B5 control valve, and on to the shift pressure relay valve where it exhausts.

The 1-2, 2-3, reverse SS valve assembly is de-energized. However, because there is no fluid supplied to the circuit, the 1-2, 2-3, reverse SS valve assembly has no effect in REVERSE INHIBIT.

When the M1 shift valve is shifted to the applied position, direct clutch feed 1 (27) fluid is blocked and direct clutch (29) fluid pressure exhausts, allowing the direct clutch assembly to release.

Exhausting direct clutch (29) fluid passes through the M2 shift valve into the direct clutch feed 2 (28) fluid circuit and on to the M1 shift valve where it exhausts.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 117

Neutral - Engine Running

When the gear selector lever is moved to the NEUTRAL (N) position, the hydraulic and electrical system operation is identical to PARK (P) range. However, if NEUTRAL is selected after the vehicle was operating in REVERSE (R), the following changes would occur in the hydraulic system.

The manual valve is moved to the NEUTRAL position and blocks line (2) pressure from entering the reverse (22) fluid circuit. The reverse (22) fluid circuit is opened to an exhaust at the manual valve.

Low and reverse clutch (24) fluid exhausts from the low and reverse clutch assembly allowing the low and reverse clutch to release.

Exhausting low and reverse clutch (24) fluid is routed into the reverse clutch (23) circuit at the M1 shift valve, the reverse (22) circuit at the #7 accumulator check valve assembly, and on to the manual valve where it exhausts.

Reverse (22) fluid pressure also exhausts from the primary regulator valve plunger, allowing line (2) pressure to return to the normal operating range as in PARK, NEUTRAL and DRIVE gear ranges.

The reverse SS valve assembly is de-energized, causing fluid pressure to build-up in the S5 signal (18) fluid circuit.

S5 signal (18) fluid is routed to the shift pressure relay valve and applies the valve against spring force.

Direct clutch (29) fluid exhausts from direct clutch assembly to the M2 shift valve allowing the direct clutch assembly to release.

Exhausting direct clutch (29) fluid passes through the M2 shift valve into the direct clutch feed 2 (28) fluid circuit and on to the M1 shift valve.

At the M1 shift valve exhausting direct clutch fluid passes from the direct clutch feed 2 (28) fluid circuit into the direct clutch feed 1 (27) fluid circuit and continues on to the shift pressure relay valve.

Exhausting direct clutch feed 1 (27) fluid passes through the shift pressure relay valve and enters the regulated drive or reverse (21) circuit.

Shift Pressure Control Valve

Exhausting regulated drive or reverse (21) fluid passes through the shift pressure control valve and enters the drive or reverse (20) circuit.

Exhausting drive or reverse (20) fluid seats the reverse shift ball check valve against the drive (19) fluid passage, enters the reverse (22) fluid passage and continues on to an exhaust at the manual valve.

The 1-2, 2-3, reverse SS valve assembly is de-energized. However, because there is no fluid supplied to the circuit, the 1-2, 2-3, reverse SS valve assembly has no effect in NEUTRAL.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 118

Drive and Intermediate Range - First Gear

When the gear selector lever is moved to the DRIVE Range (D) position from the NEUTRAL (N) position, the following hydraulic and electrical system changes occur to shift the transmission into Drive Range - First Gear.

In the DRIVE position, the manual valve routes line (2) pressure into the drive (19) fluid circuit. Drive (19) fluid is routed to the neutral relay valve, the C1 control valve, the B1 control valve, the reverse shift ball check valve (#6), the B2 control valve, the U1 shift valve, the U2 shift valve, the 2-3, 3-4 shift solenoid valve assembly (S2), and the 1-2, 2-3, reverse shift solenoid valve assembly (S3).

C1 Control Valve

Drive (19) fluid pressure is regulated through the C1 control valve into the forward clutch (26) fluid circuit.

Neutral Relay Valve

Drive (19) fluid pressure also passes through the neutral relay valve into the forward clutch (26) fluid circuit.

#12 Ball Check Valve

Located in the front control valve body assembly, drive (19) fluid pressure seats the #12 ball check valve against the forward clutch fluid passage.

#8 Accumulator Check Valve Assembly

Forward clutch (26) fluid pressure is routed to the #8 accumulator check valve assembly and moves the check valve against spring force in order to help cushion the apply of the forward clutch.

Forward Clutch (C1) Assembly

Forward clutch (26) fluid is routed to the forward clutch piston to apply the forward clutch plates.

Forward Clutch (C1) Accumulator

Forward clutch (26) fluid is also directed to the forward clutch accumulator assembly. Forward clutch (26) fluid pressure moves the forward clutch accumulator piston against spring force to cushion the apply of the forward clutch.

The reverse, 1st SS valve assembly is energized, causing fluid pressure to build-up in the S1 signal (14) fluid circuit.

S1 signal (14) fluid is routed to the U1 shift valve and passes through the valve into the reverse inhibit (52) fluid circuit.

Reverse inhibit (52) fluid is routed to the M1 shift valve and applies the valve against spring force.

B2 Control Valve

Drive (19) fluid pressure is regulated through the B2 control valve into the B2 control 1 (30) fluid circuit. B2 control 1 (30) fluid pressure is routed through the U1 shift valve into the B2 control 2 (31) fluid circuit and on to the M1 shift valve where it is blocked by the valve in preparation for an upshift to second gear.

Drive (19) fluid seats the reverse shift ball check valve against the reverse (22) fluid passage and enters the drive or reverse (20) fluid passage.

The shift pressure control valve regulates drive or reverse (20) fluid pressure into the regulated drive or reverse (21) fluid circuit. Regulated drive or reverse fluid (21) is routed to shift pressure relay valve, enters the B1 control 2 (34) fluid circuit and continues on to the M1 shift valve where it is blocked by the valve in preparation for an upshift to second gear.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 119

Low Range - First Gear, Engine Braking

Low Range - First Gear is commanded by the TCM when vehicle speed is low enough not to overrev the engine (calibratable in the TCM). Changes to the hydraulic and electrical system are as follows.

In the LOW (L) position, the manual valve routes line (2) pressure into the drive (19) fluid circuit exactly the same as in DRIVE (D) or INTERMEDIATE (I) range.

The normally closed reverse SS valve assembly is energized, allowing fluid pressure in the S5 signal (18) fluid circuit to exhaust through the solenoid.

S5 signal (18) fluid is exhausted from the shift pressure relay valve and spring force moves the valve to the released position to allow drive or reverse (20) fluid to enter the reverse control (25) fluid circuit. Reverse control (25) fluid pressure is routed through the B4 control valve and on to the B5 control valve.

B5 Control Valve

Reverse control (25) fluid is regulated through the B5 control valve into the B5 control 1 (37) fluid passage.

#5 Accumulator Check Valve Assembly

B5 control 1 (37) fluid pressure is routed to the #5 accumulator check valve assembly and moves the check valve against spring force in order to help cushion the apply of the low and reverse clutch.

Solenoid Relay Valve

B5 control 1 (37) fluid pressure passes through the solenoid relay valve into the B5 control 2 (38) fluid circuit. B5 control 2 (38) fluid pressure is then routed through the U1 shift valve and on to the M1 shift valve.

B5 control 2 (38) fluid passes through the M1 shift valve into the low and reverse clutch (24) fluid circuit.

Low and reverse clutch (24) fluid is routed to the low and reverse clutch piston to apply the low and reverse clutch plates.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 120

Drive, Intermediate and Low Range - Second Gear

As vehicle speed increases and operating conditions become appropriate, the TCM de-energizes the reverse, 1st shift solenoid valve assembly (S1) and energizes the 2-3, 3-4 shift solenoid valve assembly (S2) to shift the transmission into Second gear. The manual valve remains in the DRIVE (D) position and line (2) pressure continues to feed the drive (19) fluid circuit.

The reverse, 1st SS valve assembly is de-energized, allowing fluid pressure in the S1 signal (14) fluid circuit and the reverse inhibit (52) fluid circuit to exhaust through the solenoid.

When reverse inhibit (52) fluid exhausts, spring force shifts the M1 shift valve to the released position. This allows B2 control 2 (31) fluid to pass through the valve into the second clutch (32) fluid circuit.

#2 Accumulator Check Valve Assembly

Second clutch (32) fluid pressure is routed to the #2 accumulator check valve assembly and moves the check valve against spring force in order to help cushion the apply of the second clutch.

Second Clutch (B2) Assembly

Second clutch (32) fluid is routed to the second clutch piston to apply the second clutch plates.

B1 control 2 (34) fluid is routed through the M1 shift valve into the B1 control 3 (35) fluid circuit.

2-3, 3-4 Shift Solenoid (SS) Valve Assembly (S2)

The 2-3, 3-4 SS valve assembly is energized, causing fluid pressure to build-up in the S2 signal (15) fluid circuit.

S2 signal (15) fluid is routed to the M2 shift valve and applies the valve against spring force, allowing B1 control 3 (35) fluid to pass through the valve into the second coast clutch (36) fluid circuit.

Second Coast Clutch (B1) Assembly

Second coast clutch (36) fluid is routed to the second coast clutch piston to apply the second coast clutch plates.

Drive or reverse (20) fluid passes through the shift pressure relay valve into the PN12345 (47) fluid circuit.

PN12345 (47) fluid is routed to the U1 shift valve where it is blocked by the valve in preparation for an upshift to third gear.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 121

Drive and Intermediate Range - Third Gear

As vehicle speed increases and operating conditions become appropriate, the TCM energizes the 3-4, 4-5 shift solenoid valve assembly (S4) to shift the transmission into Third gear. The manual valve remains in the DRIVE (D) position and line (2) pressure continues to feed the drive (19) fluid circuit.

The 3-4, 4-5 SS valve assembly is energized, causing fluid pressure to build-up in the S4 signal (17) fluid circuit.

U2 Shift Valve

S4 signal (17) fluid is routed through the U2 shift valve into the 345 enable (50) fluid circuit.

345 enable (50) fluid is routed to the U1 shift valve and applies the valve against spring force, allowing PN12345 (47) fluid to pass through the valve into the servo feed (44) fluid circuit.

Servo feed (44) fluid is routed through the U2 shift valve into the servo apply (45) fluid circuit.

#9 Reverse Shift Restrict Ball Check Valve

Servo apply (45) fluid seats the reverse shift restrict ball check valve against the servo release (43) fluid passage and enters the 3rd gear band apply (46) fluid passage.

3rd Gear Band (B4) Servo Piston Assembly

3rd gear band apply (46) fluid is routed to the 3rd gear band servo piston assembly which applies the 3rd gear band assembly to hold the 4-5 clutch drum assembly.

3rd gear band apply (46) fluid also passes through orifice #30 and, together with spring force, overcomes solenoid modulator (9) fluid pressure and moves the solenoid relay valve to the released position. This allows 1-2 reverse clutch (39) fluid to exhaust through the B5 control 2 (38) fluid circuit.

1-2 reverse clutch (39) fluid exhausts from the 1-2 reverse clutch assembly allowing the 1-2 reverse clutch to release.

1-2 reverse clutch (39) fluid also exhausts from the lock up relay valve in preparation for a possible torque converter clutch apply.

With the solenoid relay valve in the released position, lock up control (12) fluid is allowed to enter the TCC signal (13) fluid circuit.

Lock Up Control Valve

TCC signal (13) fluid is routed through the lock up relay valve and on to the lock up control valve in preparation for a possible torque converter clutch apply.

Drive (19) fluid passes through orifice #24 into the S3 signal (16) fluid circuit in preparation for a shift. The normally closed 1-2, 2-3, reverse SS valve assembly is energized (ON), allowing any fluid pressure in the S3 signal (16) fluid circuit to exhaust through the solenoid.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 122

Drive Range - Fourth Gear

When operating conditions are appropriate, the TCM de-energizes the 1-2, 2-3, reverse shift solenoid valve assembly (S3) to shift the transmission into Fourth gear. The manual valve remains in the DRIVE (D) position and line (2) pressure continues to feed the drive (19) fluid circuit.

The 1-2, 2-3, reverse SS valve assembly is de-energized, allowing fluid pressure to build-up in the S3 signal (16) fluid circuit.

S3 signal (14) fluid is routed to the U2 shift valve and shifts the valve against spring force to the applied position. This allows servo feed (44) fluid to pass into the 4-5 clutch (40) fluid circuit.

4-5 Clutch (C3) Assembly

4-5 clutch (40) fluid is routed to the 4-5 clutch piston to apply the 4-5 clutch plates.

B4 Release Valve

4-5 clutch (40) fluid is also routed through orifice #28 to the B4 release valve and shifts the valve against spring force to the applied position.

When the U2 shift valve shifts to the applied position, 3rd gear band apply (46) fluid and servo apply (45) fluid exhaust through the valve allowing the 3rd gear band servo piston assembly and the 3rd gear band assembly to release.

Exhausting 3rd gear band apply (46) fluid seats the reverse shift restrict ball check valve against the servo release (43) fluid passage and enters the servo apply (45) fluid passage.

Servo apply (45) fluid is routed to the U2 shift valve where it exhausts

With the U2 shift valve in the applied position, S4 signal (17) fluid passes through the valve into the 45 enable (51) fluid circuit.

45 enable (51) fluid is routed to the solenoid relay valve and replaces exhausting 3rd gear band apply (46) fluid to hold the valve in the released position. With the solenoid relay valve in the released position, lock up control (12) fluid is allowed to enter the TCC signal (13) fluid circuit. TCC signal (13) fluid is routed through the lock up relay valve and on to the lock up control valve in preparation for a possible torque converter clutch apply.

Direct clutch feed 2 (28) fluid is routed to the M2 shift valve where it is blocked by the valve in preparation for an upshift to fifth gear.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 123

Drive Range Fifth Gear - Torque Converter Clutch Released

Drive Range - Fifth Gear is used to maximize engine efficiency and fuel economy under most normal driving conditions. When operating conditions are appropriate, the TCM de-energizes the 2-3, 3-4 shift solenoid valve assembly (S2) to shift the transmission into Fifth gear. The manual valve remains in the DRIVE (D) position and line (2) pressure continues to feed the drive (19) fluid circuit.

The 2-3, 3-4 SS valve assembly is de-energized, allowing fluid pressure in the S2 signal (15) fluid circuit to exhaust through the solenoid.

When S2 signal (15) fluid exhausts, spring force shifts the M2 shift valve to the released position, allowing direct clutch feed 2 (28) fluid to pass through the valve into the direct clutch (29) fluid circuit.

Direct clutch (29) fluid pressure is routed to the #1 accumulator check valve assembly and moves the check valve against spring force in order to cushion the apply of the direct clutch.

Direct clutch (29) fluid is routed to the direct clutch piston to apply the direct clutch plates.

When the M2 shift valve shifts to the released position, second coast clutch (36) fluid exhausts through the valve allowing the second coast clutch to release.

TORQUE CONVERTER CLUTCH RELEASED

At this time, the torque converter clutch remains released and TCC signal (13) fluid remains available at the lock up control valve in preparation for a possible torque converter clutch apply. When conditions are appropriate, the TCM ramps up the duty cycle of the lock up pressure control solenoid valve (SLU) to initiate the TCC apply. Refer to Drive Range Fifth Gear - Torque Converter Clutch Applied .

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 124

Drive Range Fifth Gear - Torque Converter Clutch Applied

When the transmission control module (TCM) determines that the engine and transmission are operating properly to engage the torque converter clutch (TCC), the TCM regulates the duty cycle of the lock up pressure control solenoid valve (SLU).

At this time the Torque Converter Clutch is considered to be disengaged (OFF), lock up pressure control solenoid valve maintains a 90 percent duty cycle.

TCM decision to apply the TCC. The following events occur in order to apply the torque converter clutch.

Stage 1

The TCM immediately decreases the lock up pressure control solenoid valve duty cycle to 0 percent and then pulses the lock up pressure control solenoid valve to approximately 25 percent duty cycle. Solenoid modulator (9) fluid at the lock up pressure control solenoid valve is pulsed into the lock up control (12) fluid circuit. Lock up control (12) fluid is routed to the solenoid relay valve and passes through the valve into the TCC signal (13) fluid circuit. TCC signal (13) fluid is then directed to the lock up relay valve and the lock up control valve. The TCC signal (13) fluid pressure at this point is strong enough to move the lock up relay, and lock up control valves against spring force. The lock up relay valve moves and allows release (4) fluid to begin to exhaust from the torque converter and enter the exhaust enable (6) fluid circuit. The lock up control valve moves and allows release (4)/exhaust enable (6) fluid to exhaust into the sump. This stage is designed to move the lock up relay and lock up control valves from the released position toward the applied position; there is not yet enough pressure to apply the TCC.

Stage 2

The lock up pressure control solenoid valve duty cycle is ramped up to approximately 50 percent. Apply (5) fluid pressure is now strong enough to cause the converter apply to occur. Converter feed (3) pressure enters the apply (5) circuit at the lock up relay valve. The pressure value in the apply (5) circuit should now be high enough to fully apply the TCC pressure plate. Slip speed should be at the correct value (near "0"). In vehicles equipped with the Electronically Controlled Clutch Capacity (ECCC) system, the pressure plate does not fully lock to the torque converter cover. It is instead precisely controlled to maintain a small amount of slippage between the engine and the turbine, reducing driveline torsional disturbances.

Stage 3

If it is determined by the TCM that it is desirable to fully lock the TCC, apply (5) fluid pressure is increased. This is caused by the lock up pressure control solenoid valve duty cycle being increased to approximately 98 percent. This extra pressure ensures that the apply force on the TCC pressure plate is not at the slip threshold, but in the condition of full lock up. TCC plate material is therefore protected from excessive heat.

When the TCC pressure plate is applied, it is held against the torque converter cover. Since it is splined to the converter turbine hub, it provides a mechanical coupling (direct drive) of the engine to the transmission gear sets. This mechanical coupling eliminates the small amount of slippage that occurs in the fluid coupling of a torque converter, resulting in a more efficient transfer of engine torque through the transmission and to the drive wheels.

At this time the Torque Converter Clutch is considered to be engaged (ON).

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 125

Drive Range - Emergency Fifth Gear

If for any reason the entire electronic control system of the transmission become disabled, all five of the shift solenoid valves will be de-energized (OFF). This EMERGENCY MODE operating state of the solenoids forces the transmission to operate in Fifth gear regardless of other vehicle operating conditions when the gear selector lever is in a forward range. Also, in EMERGENCY MODE, the lock up pressure control solenoid valve is turned OFF in order to prevent TCC apply. This allows the vehicle to be operated safely, despite the disabled controls, until the condition can be corrected.

If EMERGENCY MODE is enabled while the transmission is operating in DRIVE Range, the transmission will assume a Fifth gear hydraulic power flow state with the following exceptions.

The 3-4, 4-5 SS valve assembly is de-energized, allowing fluid pressure in the S4 signal (17) fluid circuit to exhaust through the solenoid.

45 enable (51) fluid pressure exhausts from the solenoid relay valve, passes through the U2 shift valve into the S4 signal (17) fluid circuit and continues on to the 3-4, 4-5 SS valve assembly where it exhausts into the sump.

Lock Up Pressure Control Solenoid Valve (SLU)

The lock up pressure control solenoid valve is de-energized, allowing lock up control (12) fluid and TCC signal (13) fluid to exhaust through the solenoid.

1. SUCTION
2. LINE
3. CONVERTER FEED
4. RELEASE
5. APPLY
6. EXHAUST ENABLE
7. COOLER
8. LUBE
9. SOLENOID MODULATOR
10. THROTTLE SIGNAL (SLT)
11. SHIFT CONTROL (SLS)
12. LOCK UP CONTROL (SLU)
13. TCC SIGNAL
14. S1 SIGNAL
15. S2 SIGNAL
16. S3 SIGNAL
17. S4 SIGNAL
18. S5 SIGNAL
19. DRIVE
20. DRIVE OR REVERSE
21. REGULATED DRIVE OR REVERSE
22. REVERSE
23. REVERSE CLUTCH
24. LOW AND REVERSE CLUTCH
25. REVERSE CONTROL
26. FORWARD CLUTCH
27. DIRECT CLUTCH FEED 1
28. DIRECT CLUTCH FEED 2
29. DIRECT CLUTCH
30. B2 CONTROL 1
31. B2 CONTROL 2
32. SECOND CLUTCH
33. B1 CONTROL 1
34. B1 CONTROL 2
35. B1 CONTROL 3
36. SECOND COAST CLUTCH
37. B5 CONTROL 1
38. B5 CONTROL 2
39. 1-2 REVERSE (B5) CLUTCH
40. 4-5 CLUTCH
41. B4 CONTROL
42. B4 RELEASE
43. SERVO RELEASE
44. SERVO FEED
45. SERVO APPLY
46. 3RD GEAR BAND APPLY
47. PN12345
48. PRN15
49. 234NCON
50. 345 ENABLE
51. 45 ENABLE
52. REVERSE INHIBIT
53. VENT
54. EXHAUST
55. SUMP
56. VOID
57. TORQUE CONVERTER SEAL DRAINBACK

Scheme 126

Scheme 127

Scheme 128

Scheme 129

Scheme 130

Scheme 131

Scheme 132

Scheme 133

Scheme 134

Scheme 135

Scheme 136

Scheme 137

Scheme 138

Scheme 139

Scheme 140

Scheme 141