Automatic Transmission - 4l60-e/4l65-e - Servicing Cadillac Escalade GMT800

APPLICATION

TRANSMISSION APPLICATION

Scheme 1

SERVICE INTERVALS

Check transmission fluid level at each engine oil change. Change the automatic transmission fluid and the filter at 50,000 miles.

Checking Fluid Level

1. Start the engine and operate the vehicle for 15 minutes or until the transmission fluid reaches an operating temperature of 180-200°F (82-93°C).
2. Park the vehicle on a level surface.
3. With your foot on the brake, move the shift lever through each gear range. Pause for about 3 seconds in each range, ending in Park.
4. Apply the Parking brake and let the engine idle for 3 minutes.
5. Remove the transmission fluid level indicator. Wipe the indicator clean. Insert the indicator. Give the indicator a full twist in order to close.
6. Wait 3 seconds and remove the indicator.
7. Read both sides of the indicator. The fluid must be within the hot cross hatched area using the lowest level reading.

Checking Fluid Condition

1. Check the fluid color. Is the fluid Red in color? If so, go to step 5 . If not, go to next step.
2. Is the fluid a non transparent Pink in color? If so, go to step 14 . If not, go to next step.
3. Is the fluid a light Brown in color? If so, go to step 5 . If not, go to next step. NOTE: Fluid may turn a Dark Brown in color from normal use. This does not always indicate an oxidation or a contamination issue.
4. Is the fluid Black in color and or have a burnt smell? If so, go to step 14 . If not, go to next step.
5. Does the fluid appear as a solid liquid and not foamy or full of bubbles on transmission fluid level indicator? If so, go to next step. If not, go to step 7 .
6. Check the fluid level. Proper level should be in middle of the cross hatched pattern, on transmission fluid level indicator. Is the level okay? If so, go to step 19 . If not, go to next step.
7. Is the fluid level high on indicator? If so, go to step 12 . If not, go to next step.
8. Is the fluid level low on indicator? If so, go to step 9 . If not, go to next step.
9. Check for any external leak or leaks. Did you find an external leak or leaks? If so, go to next step. If not, go to step 11 .
10. Correct leak or leaks as needed. Are any leak or leaks still present? If so, go to step 9 . If not, go to next step.
11. Add fluid until level is in middle of cross hatched pattern on the transmission fluid level indicator. Is the level okay? If so, go to step 19 . If not, go to step 6 .
12. Drain fluid until level is in middle of cross hatched pattern on the transmission fluid level indicator. Is level okay? If so, go to step 19 . If not, go to step 6 .
13. Replace oil cooler and flush lines. See «AUXILIARY OIL COOLER»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under REMOVAL & INSTALLATION. Is the replacement complete? If so, go to step 15 .
14. Drain fluid and remove oil pan to inspect. Is there sign or signs of internal component damage noted in bottom of transmission oil pan? If so, go to step 16 . If not go to step 13 . NOTE: A small amount of friction material in pan bottom is a normal condition, but large pieces and or metal particles will require complete transmission overhaul.
15. Replace the filter and fluid. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) . Is the replacement complete? If so, go to step 6 .
16. Flush oil cooler and lines, and check flow. See «OIL COOLER FLUSHING & FLOW CHECK»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__oil-cooler-flushing-flow-check) . Is transmission oil cooler flushing and flow test complete? If so, go to step 17 .
17. Overhaul transmission. See appropriate OVERHAUL article. Is the overhaul procedure complete? If so, go to next step.
18. Fill transmission with appropriate fluid to proper level. See «RECOMMENDED FLUIDS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__recommended-fluids) and «FLUID CAPACITIES»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__fluid-capacities) . Is the procedure complete? If so, go to step 6 .
19. Check the fluid level and correct as necessary. Is the fluid level satisfactory? If so, system is okay. If not, go to step 1 .

RECOMMENDED FLUIDS

Manufacturer recommends Dexron-III ATF.

FLUID CAPACITIES

The following refill capacities given are approximate. Correct fluid level should always be determined by marks on dipstick, rather than amount of fluid added. DO NOT overfill. See TRANSMISSION FLUID CAPACITIES table.

TRANSMISSION FLUID CAPACITIES

Draining & Cleaning

1. Raise and support vehicle.
2. Place a drain pan under the transmission oil pan.
3. Remove oil drain plug, if equipped.
4. If necessary, remove the bolts and position aside the range selector cable bracket for clearance while lowering the pan. It is not necessary to remove the cable from the lever or bracket.
5. Remove the oil pan bolts from the front and sides of the pan only.
6. Loosen the rear oil pan bolts approximately 4 turns.
7. Lightly tap the oil pan with a rubber mallet in order to loosen the pan to allow the fluid to drain.
8. Remove the remaining oil pan bolts. (Scheme 2)
9. Remove the oil pan and the gasket. (Scheme 3)
10. Grasp firmly while pulling down with a twisting motion in order to remove the filter. (Scheme 4)
11. Remove and discard the filter seal. The filter seal may be stuck in the pump; if necessary, carefully use pliers or another suitable tool to remove the seal. (Scheme 5)
12. Inspect the fluid color.
13. Inspect the filter. Pry the metal crimping away from the top of the filter and pull apart. The filter may contain clutch material, bronze slivers indicating bushing wear or steel particles.
14. Clean the transmission case and the oil pan gasket surfaces with solvent, and air dry. You must remove all traces of the old gasket material.

Scheme 2

Scheme 3

Scheme 4

Scheme 5

Refilling & Inspecting

1. Coat the NEW filter seal with automatic transmission fluid.
2. Install the NEW filter seal into the transmission case. Tap the seal into place using a suitable size socket. (Scheme 6)
3. Install the NEW filter.
4. Install the oil pan and NEW gasket. (Scheme 3)
5. Install the oil pan bolts. (Scheme 2) Tighten the bolts alternately and evenly to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
6. If previously removed, install the range selector cable bracket and bolts. Tighten the bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
7. Apply a small amount of sealant to the threads of the oil pan drain plug, if equipped.
8. Install the oil pan drain plug, if equipped. Tighten the plug to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
9. Lower the vehicle.
10. Fill transmission to proper level with appropriate fluid. See «RECOMMENDED FLUIDS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__recommended-fluids) and «FLUID CAPACITIES»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__fluid-capacities).
11. Check the COLD fluid level reading for initial fill only.
12. Inspect the oil pan gasket for leaks.

Scheme 6

OIL COOLER FLUSHING & FLOW CHECK

Note. DO NOT use solutions that contain alcohol or glycol. Use of solutions that contain alcohol or glycol may damage flushing equipment, oil cooler components and/or transmission components.

Preparation

1. After the repair or replacement transmission is installed in the vehicle, DO NOT reconnect the oil cooler pipes.
2. Remove the fill cap (9) on the Transmission Oil Cooler and Line Flusher (J-35944-A) and fill the flusher tank (4) with 20-21 oz. (0.6L) of flushing solution using the measuring cup (6). DO NOT overfill.
3. Install the fill cap (9) on the flusher and pressurize the flusher tank (4) to 80-100 psi (550-700 kPa), using the shop air supply at the tank air valve (9). (Scheme 7)
4. With the water supply valve (1) on the flusher in the OFF position, connect the water supply hose (7) from the flusher to the water supply at the faucet. (Scheme 7)and (Scheme 8).
5. Turn ON the water supply at the faucet.

Scheme 7

Scheme 8

Back Flush

1. Inspect the transmission oil cooler pipes for kinks or damage. Repair as necessary.
2. Connect the transmission oil cooler and line flusher to the oil cooler feed bottom connector. Use the Cooler Flushing Adapter (J 35944-200), if required.
3. Clip the discharge hose (5) onto the oil drain container. (Scheme 8)
4. Attach the flusher to the undercarriage of the vehicle with the hook provided and connect the flushing system feed supply hose (3) from the flusher to the top connector oil cooler return pipe. Use the cooler flushing adapter, if required.
5. Turn the flusher water supply valve (1) to the ON position and allow water to flow through the oil cooler and pipes for 10 seconds to remove any remaining transmission fluid. If water does not flow through the oil cooler and pipes, the cause of the blockage must be diagnosed and the plugged component must be repaired or replaced. Continue with the cooler flushing and flow check procedure once the blockage is corrected.
6. Turn the flusher water supply valve (1) to the OFF position and clip the discharge hose onto a 5 gallon pail with a lid, to avoid splashback. NOTE: Flushing for approximately 2 minutes in each cooler line direction will result in a total of about 8-10 gallons of waste fluid. This mixture of water and flushing fluid is to be captured in a bucket or similar container.
7. Turn the flusher water supply valve (1) to the ON position and depress the trigger (8) to mix cooler flushing solution into the water flow. Use the clip provided on the handle to hold the trigger (8) down. (Scheme 9) The discharge will foam vigorously when the solution is introduced into the water stream.
8. Flush the oil cooler and pipes with water and solution for 2 minutes. During this flush, attach the shop air supply 120 psi (825 kPa) to the flushing system feed air valve (2) located on the flusher, for 3-5 seconds at the end of every 15-20 second interval to create a surging action.
9. Release the trigger (8) and turn the flusher water supply valve (1) to the OFF position.

Scheme 9

Forward Flush

1. Disconnect both hoses (3 and 5) from the oil cooler pipes and connect them to the opposite oil cooler pipe. (Scheme 8) This will allow the oil cooler and pipes to be flushed in the normal flow direction.
2. Repeat Steps 6 and 7 of BACK FLUSH procedure.
3. Release the trigger (8) of the transmission oil cooler and line flusher and allow water only to rinse the oil cooler and pipes for one minute. (Scheme 9)
4. Turn the flusher water supply valve (1) to the OFF position and turn OFF the water supply at the faucet.
5. Attach the shop air supply to the flushing system feed air valve (2) on the flusher and blow out the water from the oil cooler and pipes. Continue, until no water comes out of the discharge hose.

Flow Test

Note. The Flow Test must be performed after the flush to ensure that all flushing solution and water is removed from the oil cooling system.

1. Disconnect the hose from the oil cooler pipe. Connect the oil cooler feed pipe, bottom connector, to the transmission for normal flow.
2. Clip the discharge hose (1) to an empty oil container. (Scheme 10)
3. Confirm the transmission is filled with automatic transmission fluid. See «FLUID CAPACITIES»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__fluid-capacities) for correct fluid capacity.
4. Start the engine with the transmission in Park range and run for 30 seconds after fluid begins to flow from the discharge hose (1). A minimum of 2 qt (1.9 L) must be discharged during this 30 second run time.
5. If the fluid flow meets or exceeds 2 qts (1.9 L) in 30 seconds, connect the oil cooler feed pipe to the bottom connector on the transmission.
6. If fluid flow is less than 2 qt (1.9 L) in 30 seconds, perform the following diagnosis: Disconnect the transmission oil cooler and line flusher discharge hose (1) from the oil cooler return pipe. Disconnect the oil cooler feed pipe at the radiator. Connect the flusher discharge hose (1) to the oil cooler feed pipe, radiator end. Clip the discharge hose (1) onto the oil drain container. Start the engine with the transmission in Park range and run for 30 seconds after fluid begins to flow from the discharge hose (1). A minimum of 2 qt (1.9 L) must be discharged during this 30 second run time.
7. If the amount of transmission fluid flow remains less than 2 qt (1.9 L) in 30 seconds, inspect the oil cooler feed pipe, bottom connector, for restrictions or damage. If no condition is found with the feed pipe, bottom connector, inspect the transmission.

Scheme 10

Clean-Up

1. Disconnect the water supply hose from the transmission oil cooler and line flusher and bleed any remaining air pressure from the flusher tank.
2. Remove the fill cap from the flusher and return any unused flushing solution to its container. Rinse the flusher with water. DO NOT store the flusher with flushing solution in it.
3. After every third use, clean the flusher as described in the instructions included with the tool.
4. Dispose of any waste water/solution and transmission fluid in accordance with local regulations.

ON-VEHICLE REPAIRS

Note. Various components may be serviced without transmission removal, depending on application. For servicing of these components, see appropriate component under ADJUSTMENTS and/or REMOVAL & INSTALLATION . For additional information on testing electrical components, see appropriate DIAGNOSIS article.

ADJUSTMENTS

PARK/NEUTRAL POSITION SWITCH

Note. Apply the Park brake. The engine must start in the Park (P) or Neutral (N) positions only. Check the Park/Neutral Position (PNP) switch for proper operation.

1. Place the transmission range selector in the Neutral (N) position.
2. With an assistant in the drivers seat, raise and suitably support the vehicle.
3. Loosen the PNP switch bolts.
4. With the vehicle in the Neutral (N) position, rotate the switch while the assistant attempts to start the engine.
5. Following a successful start, turn the engine OFF.
6. Tighten the PNP switch bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications) .
7. Lower the vehicle.
8. Check the PNP switch for proper operation. The engine must start in the Park (P) or Neutral (N) positions only.
9. Replace the PNP switch if proper operation can not be achieved. See «PARK/NEUTRAL POSITION SWITCH»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) .

SHIFT CABLE

1. Ensure the steering column shift lever and the transmission manual shaft lever are in the Park (P) position.
2. Raise and suitably support the vehicle.
3. With right hand, push the flange (3) of the cable (transmission end) (5), inside the cable (1) (shifter end) until the connection is made, ensuring the flange ribs (7) align with the cable (shifter end) (1) slots (2). (Scheme 11)
4. Hold the red security ring (6) with left hand and with right hand, twist the blue rotating lock (4) until it snaps into position.
5. With left hand, push the red security ring (1) to the right. (Scheme 12)
6. The red security ring should cover the white (2) marks on the blue rotating lock (3).

Scheme 11

Scheme 12

REMOVAL & INSTALLATION

ACCUMULATOR ASSEMBLY

Note. Tools required: Pump and Valve Body Alignment Pin Set (J-25025-B), and Transjel Lubricant (J-36850).

Removal

1. Remove the transmission filter.
2. Remove the control valve body. See «VALVE BODY & PRESSURE SWITCH»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
3. Remove the accumulator cover bolts. (Scheme 13)
4. Remove the 1-2 accumulator cover.
5. Disassemble the 1-2 accumulator as follows: Blow compressed air into the 1-2 accumulator cover in order to remove the 1-2 accumulator piston. (Scheme 14) Remove the 1-2 accumulator inner and outer springs.
6. Inspect the 1-2 accumulator inner and outer springs for cracks.
7. Remove the 1-2 accumulator piston seal (1) from the 1-2 accumulator piston. (Scheme 15)
8. Inspect the 1-2 accumulator piston for the following defects: Porosity. Cracks. Scoring. Nicks and scratches.
9. Inspect the 1-2 accumulator cover for the following defects: Porosity. Cracks. Scoring. Nicks and scratches. (Scheme 16)
10. Remove the spacer plate support bolts. (Scheme 17) NOTE: Use care not to drop the number one checkball, the 3-4 accumulator spring and the 3-4 accumulator pin.
11. Remove the spacer plate support.
12. Remove the spacer plate to valve body gasket, the spacer plate and the spacer plate to transmission case gasket. (Scheme 18)
13. Remove the 3-4 accumulator piston. (Scheme 19)
14. Inspect the 3-4 accumulator spring for cracks.
15. Remove the 3-4 accumulator piston seal (1) from the 3-4 accumulator piston. (Scheme 15)
16. Inspect the 3-4 accumulator piston for the following defects: Porosity. Cracks. Scoring. Nicks and scratches.

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

Scheme 18

Scheme 19

Installation

1. Install a new 3-4 accumulator piston seal (1) to the 3-4 accumulator piston. (Scheme 15)
2. Install the 3-4 accumulator pin (1) into the transmission case and retain the pin with Transjel(R) lubricant. (Scheme 20)
3. Install the 3-4 accumulator piston onto the pin in the transmission case. (Scheme 19) Ensure that the 3-4 accumulator piston legs face away from the transmission case.
4. Install the pump and valve body alignment pin set (2, 3) to the transmission case. (Scheme 20)
5. Install the spacer plate to transmission case gasket and the spacer plate to valve body gasket to the spacer plate; use Transjel(R) lubricant in order to retain the gaskets to the spacer plate. (Scheme 21) The case gasket is identified by a "C". Be sure to place the case gasket on the transmission case side of the spacer plate. The valve body gasket is identified by a "V". Be sure to place the valve body gasket on the valve body side of the spacer plate.
6. Ensure that the solenoid screens (1 and 2) are in place on the spacer plate.
7. Place the checkball (3) on the spacer plate in the location shown.
8. Place the 3-4 accumulator spring (4) on the spacer plate.
9. Install the spacer plate and related components to the transmission.
10. Install the spacer plate support and the spacer plate support bolts. (Scheme 17) Tighten the bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
11. After installing the spacer plate support (2), look through the hole in the spacer plate to ensure that the checkball (1) has remained in the proper location. (Scheme 22)
12. Install a new 1-2 accumulator piston seal (1) to the 1-2 accumulator piston. (Scheme 15)
13. Install the 1-2 accumulator inner and outer springs to the 1-2 accumulator cover. (Scheme 23)
14. Install the 1-2 accumulator piston onto the pin in the 1-2 accumulator cover. Ensure that the piston legs face the accumulator cover.
15. Install the 1-2 accumulator cover and the accumulator cover bolts. (Scheme 13) Tighten the bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
16. Remove the pump and valve body alignment pin set from the transmission case.
17. Install the valve body. See «VALVE BODY & PRESSURE SWITCH»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
18. Install the transmission filter.

Scheme 20

Scheme 21

Scheme 22

Scheme 23

1. Remove the front grill assembly.
2. Place a drain pan under the vehicle.
3. Disconnect the transmission oil cooler lines from the auxiliary cooler.
4. Remove the auxiliary oil cooler bolts (1) and push pins (2). (Scheme 24)
5. Remove the auxiliary oil cooler from the vehicle.

Scheme 24

1. Install the auxiliary oil cooler to the vehicle.
2. Install the bolts (1) and the push pins (2) that retain the auxiliary oil cooler to the radiator brace. (Scheme 24) Tighten bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
3. Connect the transmission oil cooler lines to the auxiliary cooler.
4. Install the front grill assembly.

CONTROL & SHIFT SOLENOIDS

Note. Valve body removal is not necessary for the following procedure.

1. Remove the transmission oil pan and filter. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION. NOTE: DO NOT remove the valve body for the following procedures. Removal of the 1-2 accumulator is necessary only if servicing the pressure control solenoid.
2. Remove the 1-2 accumulator if necessary. See «ACCUMULATOR ASSEMBLY»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__accumulator-assembly).
3. Disconnect the internal wiring harness electrical connectors from the following components: Transmission fluid pressure switch. (Scheme 25) 1-2 shift control solenoid. 2-3 shift control solenoid. Pressure control solenoid. Torque Converter Clutch Pulse Width Modulation (TCC PWM) solenoid. 3-2 shift control solenoid.
4. Remove the pressure control solenoid retainer. Remove the pressure control solenoid. (Scheme 26)
5. Remove the 1-2 and 2-3 shift control solenoid retainers. Remove the 1-2 and 2-3 shift control solenoids. (Scheme 27)
6. Remove the 3-2 control solenoid retainer. Remove the 3-2 control solenoid. (Scheme 28)

Scheme 25

Scheme 26

Scheme 27

Scheme 28

1. Install the 3-2 control solenoid. Install the 3-2 control solenoid retainer. Install the 1-2 and 2-3 shift control solenoids. (Scheme 28)
2. Install the 1-2 and 2-3 shift control solenoid retainers. Install the pressure control solenoid. Ensure the electrical tabs are facing outboard. (Scheme 27)
3. Install the pressure control solenoid retainer and retaining bolt and tighten to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
4. Connect the internal wiring harness electrical connectors to the following components: Transmission fluid pressure switch. (Scheme 25) 1-2 shift control solenoid. 2-3 shift control solenoid. Pressure control solenoid. TCC PWM solenoid. 3-2 control solenoid.
5. Install the 1-2 accumulator. See «ACCUMULATOR ASSEMBLY»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__accumulator-assembly).
6. Install the transmission oil pan and filter. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION.
7. Fill transmission with appropriate fluid to proper level. See «LUBRICATION»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).

1. Remove the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
2. Remove the transmission mount.
3. Support the transmission with a transmission jack.
4. Place a drain pan under the vehicle.
5. Remove the case extension bolts (1). (Scheme 29)
6. Remove the case extension (2).
7. Remove and discard the case extension "O" ring seal (3).

Scheme 29

1. Install a new case extension "O" ring seal (3). (Scheme 29)
2. Install the case extension (2).
3. Install the case extension bolts (1). Tighten the case extension bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
4. Install the transmission mount.
5. Remove the drain pan and the transmission jack.
6. Install the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
7. Fill transmission with appropriate fluid to proper level. See «LUBRICATION»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).

EXTENSION HOUSING REAR OIL SEAL

Note. Tools required: Rear Extension Seal Installer (J-21426), and Transmission Assembly Lubricant (J-36850).

1. Place a drain pan under the vehicle.
2. Remove the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
3. Remove the rear extension oil seal. (Scheme 30)
4. Inspect the case extension housing for damage. Replace the extension housing if necessary.

Scheme 30

1. Lubricate the inside diameter of the NEW seal with Transjel(R) lubricant.
2. Install the new seal using rear extension seal installer and a soft faced mallet. (Scheme 31)
3. Remove the drain pan.
4. Install the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
5. Fill transmission with appropriate fluid to proper level. See «LUBRICATION»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).

Scheme 31

1. Remove the transmission oil level indicator.
2. Raise and suitably support the vehicle.
3. Support the transmission using a suitable jack.
4. Remove the transmission mount nut. (Scheme 32)
5. Remove the transmission crossmember bolts/nuts. (Scheme 33)
6. Remove the transmission crossmember.
7. Loosen the left exhaust pipe nuts. (Scheme 34)
8. Loosen the right exhaust pipe nuts. (Scheme 35)
9. Remove the insulator nuts and insulator from the bracket. (Scheme 36)
10. Remove the exhaust pipe hanger bracket bolts and bracket.
11. Lower the transmission slightly.
12. Disconnect the transmission oil cooler lines. (Scheme 37)
13. Plug the transmission oil cooler line fittings.
14. Remove the indicator tube nut. (Scheme 38)
15. Remove the oil level indicator tube. (Scheme 39)
16. Remove the seal from the transmission, if necessary.

Scheme 32

Scheme 33

Scheme 34

Scheme 35

Scheme 36

Scheme 37

Scheme 38

Scheme 39

1. Install a NEW seal to the indicator tube.
2. Install the oil level indicator tube.
3. Install the indicator tube nut. (Scheme 38) Tighten nut to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
4. Remove the plugs from the transmission oil cooler line fittings. (Scheme 37)
5. Connect the transmission oil cooler lines.
6. Install the exhaust pipe hanger bracket and bolts. (Scheme 36) Tighten bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
7. Instal the insulator and nuts to the bracket. Tighten nuts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
8. Tighten the right exhaust pipe nuts. (Scheme 35) Tighten nuts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
9. Tighten the left exhaust pipe nuts. (Scheme 34) Tighten nuts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
10. Install the transmission crossmember. (Scheme 33)
11. Install the transmission crossmember bolts/nuts. Tighten bolts/nuts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
12. Install the transmission mount nut. (Scheme 32) Tighten nut to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
13. Remove the support from the transmission.
14. Lower the vehicle.
15. Install the transmission oil level indicator.
16. Fill transmission to proper level with appropriate fluid. See «LUBRICATION»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).

1. Remove the front grill assembly.
2. Remove the transmission fluid cooler hose from the auxiliary oil cooler. (Scheme 40) See «OIL COOLER LINE QUICK CONNECT FITTING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
3. Remove the transmission fluid cooler hose from the radiator. See «OIL COOLER LINE QUICK CONNECT FITTING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
4. Raise the vehicle.
5. Remove the engine protection shield.
6. Remove the cooling lines from the transmission. (Scheme 37) See «OIL COOLER LINE QUICK CONNECT FITTING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
7. Remove the oil cooling lines from the vehicle.

Scheme 40

1. Install the transmission oil cooler lines to the vehicle.
2. Install the cooling lines to the transmission. (Scheme 37) See «OIL COOLER LINE QUICK CONNECT FITTING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
3. Install the engine protection shield.
4. Lower the vehicle.
5. Install the transmission fluid cooler hose to the radiator. (Scheme 40) See «OIL COOLER LINE QUICK CONNECT FITTING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
6. Install the transmission fluid cooler hose to the Auxiliary oil cooler. See «OIL COOLER LINE QUICK CONNECT FITTING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).
7. Install the front grill assembly.

1. Pull the plastic cap back from the quick connect fitting and down along the cooler line about 2 in (5 cm).
2. Using a bent-tip screwdriver, pull on one of the open ends of the retaining ring in order to rotate the retaining ring around the quick connect fitting until the retaining ring is out of position and can be completely removed. (Scheme 41)
3. Remove the retaining ring from the quick connect fitting.
4. Discard the retaining ring.
5. Pull the cooler line straight out from the quick connect fitting. (Scheme 42)

Scheme 41

Scheme 42

Note. DO NOT reuse any of the existing oil lines or oil line fittings if there is excessive corrosion. DO NOT reuse any of the existing retaining rings that were removed from the existing quick connect fittings. Install new retaining rings.

1. Install a new retaining ring into the quick connect fitting using the following procedure: Hook one of the open ends of the retaining ring in one of the slots in the quick connect fitting. (Scheme 43) Rotate the retaining ring around the fitting until the retaining ring is positioned with all three ears through the three slots on the fitting. (Scheme 44) DO NOT install the new retaining ring onto the fitting by pushing the retaining ring. (Scheme 45) Ensure that the three retaining ring ears are seen from inside the fitting and that the retaining ring moves freely in the fitting slots. (Scheme 46)
2. Install the cooler line into the quick connect fitting. (Scheme 47)
3. Insert the cooler line end into the quick connect fitting until a click is either heard or felt.
4. DO NOT use the plastic cap on the cooler line in order to install the cooler line into the fitting. (Scheme 48)
5. Pull back sharply on the cooler line in order to ensure that the cooler line is fastened into the quick connect fitting.
6. Position (snap) the plastic cap onto the fitting. DO NOT manually depress the retaining ring when installing the plastic cap onto the quick connect fitting. (Scheme 49)
7. Ensure that the plastic cap is fully seated against the fitting.
8. Ensure that no gap is present between the cap and the fitting. (Scheme 50)
9. Ensure that the yellow identification band on the tube is hidden within the quick connect fitting. (Scheme 49)
10. A hidden yellow identification band indicates proper joint seating. (Scheme 51)
11. Fill transmission to proper level with appropriate fluid. See «LUBRICATION»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).

Scheme 43

Scheme 44

Scheme 45

Scheme 46

Scheme 47

Scheme 48

Scheme 49

Scheme 50

Scheme 51

Note. Tools required: Park/Neutral Position Switch Aligner (J-41364-A).

1. Apply the Parking brake.
2. Shift the transmission into Neutral.
3. If equipped with 4WD, remove the front drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
4. Raise and suitably support the vehicle.
5. Disconnect the Park/Neutral Position (PNP) switch electrical connectors (2). (Scheme 52)
6. Remove the manual shaft lever nut. (Scheme 53)
7. Remove the transmission control lever from the manual shaft.
8. Remove the PNP switch bolts.
9. Remove the PNP switch from the manual shaft. If the PNP switch did not slide off the manual shaft, file the outer edge of the manual shaft in order to remove any burrs.

Scheme 52

Scheme 53

1. Install the PNP switch to the transmission manual shaft by aligning the switch hub flats with the manual shaft flats. (Scheme 52)
2. Slide the PNP switch onto the transmission manual shaft until the switch mounting bracket contacts the mounting bosses on the transmission. NOTE: If a NEW PNP switch is being installed, the switch will come with a positive assurance bracket. The positive assurance bracket aligns the new switch in its proper position for installation and the use of the park neutral switch aligner will not be necessary.
3. Install the PNP switch bolts finger tight.
4. Install park/neutral position switch aligner onto the PNP switch. (Scheme 54) Ensure that the two slots on the switch where the manual shaft is inserted are lined up with the lower two tabs on the tool.
5. Rotate the tool until the upper locator pin on the tool is lined up with the slot on the top of the switch. Tighten the bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
6. Remove the park/neutral position switch aligner from the switch. If installing a new switch, remove the positive assurance bracket at this time.
7. Install the transmission control lever to the manual shaft with the nut. (Scheme 52) Tighten the nut to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
8. Connect the PNP switch electrical connectors (2). (Scheme 52)
9. If equipped with 4WD, install the front drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
10. Lower the vehicle.
11. Check the switch for proper operation. The engine must start in the Park (P) or Neutral (N) positions only. If proper operation of the switch can not be obtained, replace the switch.

Scheme 54

1. Remove the transmission oil pan and filter. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION.
2. Compress the reverse boost valve sleeve into the bore of the oil pump to release tension on the reverse boost valve retaining ring. (Scheme 55)
3. Remove the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
4. Remove the reverse boost valve sleeve (5) and the reverse boost valve (4). (Scheme 56)
5. Remove the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
6. Remove the pressure regulator valve (1).

Scheme 55

Scheme 56

1. Install the pressure regulator valve (1). (Scheme 56)
2. Install the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
3. Install the reverse boost valve (4) in the reverse boost valve sleeve (5).
4. Install the reverse boost valve (4) and sleeve (5) in the oil pump cover.
5. Compress the reverse boost valve sleeve into the bore of the oil pump to expose the retaining ring slot.
6. Install the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve. (Scheme 55)
7. Install the transmission oil filter and pan. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION.

1. Apply the Parking brake.
2. Place the transmission into Neutral.
3. Raise and support the vehicle.
4. Remove the retainer that secures the cable to the bracket. (Scheme 57)
5. Depress the tangs and remove the cable from the bracket.
6. Remove the bolts (1) securing the transmission range selector cable bracket (2) to the transmission. (Scheme 58)
7. Remove the transmission range selector cable bracket.

Scheme 57

Scheme 58

1. Install the shift cable bracket to the vehicle.
2. Install the shift cable bracket bolts (1). (Scheme 58) Tighten the bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
3. Align and install the cable to the bracket. (Scheme 57)
4. Install the retainer that secures the cable to the bracket.
5. Lower the vehicle.
6. Check the vehicle for proper operation. If cable adjustment is necessary, see «SHIFT CABLE»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__shift-cable) under ADJUSTMENTS.

1. Position the steering column shift lever to the Park position.
2. Remove the instrument panel knee bolster.
3. Remove the driver's seat.
4. Pull back the carpet and insulation around the driver's area.
5. Remove the retainer securing the cable to the steering column. (Scheme 59)
6. Remove the cable end from the steering column ball stud. (Scheme 60)
7. Depress the tangs and remove the cable from the steering column bracket.
8. Remove the bolt securing the cable support to the brace. (Scheme 61) NOTE: Avoid unnecessary twisting/bending of the range selector cable when removing the cable from the support.
9. Remove the range selector cable from the support. (Scheme 62)
10. Remove the cable grommet from the floor panel. (Scheme 63)
11. Raise and suitably support the vehicle.
12. Remove the clips on the cable from the floor panel reinforcement. (Scheme 64)
13. Ensure the transmission manual shaft is positioned in mechanical Park.
14. Remove the retainer that secures the cable to the bracket. (Scheme 57)
15. Remove the cable clip on the transfer case, if equipped.
16. Remove the range selector cable end (2) from the transmission range selector lever ball stud (1). (Scheme 65)
17. Depress the tangs and remove the cable from the bracket.
18. Lower the vehicle and ensure that the steering column shift lever is still in the Park position.

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

Scheme 64

Scheme 65

1. Ensure that the transmission manual shaft lever is in the mechanical Park position.
2. Align and install the cable to the bracket.
3. Install the range selector cable end (2) to the transmission range selector lever ball stud (1). (Scheme 65)
4. Install the cable clip on the transfer case, if equipped.
5. Install the retainer that secures the cable to the bracket. (Scheme 57)
6. Install the clips on the cable to the floor panel reinforcement. (Scheme 64)
7. Lower the vehicle.
8. Install the cable grommet to the floor panel. (Scheme 63) NOTE: Avoid unnecessary twisting/bending of the range selector cable when installing the cable to the support.
9. Install the range selector cable to the support. (Scheme 62)
10. Install the bolt securing the cable support to the brace. (Scheme 61) Tighten the bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
11. Install the cable to the steering column bracket. (Scheme 60)
12. Ensure the tangs fully seat (snap) into the steering column bracket.
13. Install the cable end to the steering column ball stud.
14. Install the retainer securing the cable to the steering column. (Scheme 59)
15. Position the carpet and insulation around the driver's area.
16. Install the driver's seat.
17. Install the instrument panel knee bolster.
18. Test the transmission for proper shift operation.
19. If all of the gear positions cannot be achieved, adjust the cable.

TCC SOLENOID, TCC PWM SOLENOID & WIRING HARNESS

Note. Tools required: Seal Protector Retainer Installer (J-28458).

1. Raise and support the vehicle. Remove the transmission oil pan and the filter. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION.
2. Disconnect the transmission harness 20-way connector from the transmission internal harness pass-through connector. (Scheme 66) Depress both tabs on the connector and pull straight up, DO NOT pry the connector.
3. Remove the 1-2 accumulator assembly. See «ACCUMULATOR ASSEMBLY»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__accumulator-assembly).
4. Disconnect the internal wiring harness electrical connectors from the following components: Transmission fluid pressure switch. (Scheme 25) 1-2 shift control solenoid. 2-3 shift control solenoid. Pressure control solenoid. TCC PWM solenoid. 3-2 shift control solenoid.
5. Remove the TCC PWM solenoid retainer. (Scheme 67)
6. Remove the TCC PWM solenoid to access one of the TCC solenoid retaining bolts.
7. Remove the pressure control solenoid retainer.
8. Remove the pressure control solenoid. (Scheme 26)
9. Remove the TCC solenoid retaining bolts and the valve body bolts which retain the internal wiring harness. (Scheme 68)
10. Using the seal protector retainer installer, release the pass-through electrical connector from the transmission case. (Scheme 69) Use the small end of the seal protector retainer installer over the top of the connector. Twist to release the 4 tabs retaining the connector. Pull the harness connector down through the transmission case.
11. Remove the TCC solenoid (with "O" ring seal) and wiring harness.
12. Inspect the TCC solenoid and wiring harness assembly for the following defects: Damage. (Scheme 70) Cracked connectors. Exposed wires. Loose pins.

Scheme 66

Scheme 67

Scheme 68

Scheme 69

Scheme 70

1. Install the wiring harness and TCC solenoid assembly with a new "O" ring seal to the transmission. (Scheme 69)
2. Install the pass-through electrical connector to the transmission case.
3. Install the valve body bolts which retain the internal wiring harness and install the TCC solenoid retaining bolts. (Scheme 68) Tighten the control valve body retaining bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications). Tighten the TCC solenoid retaining bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
4. Install the pressure control solenoid. (Scheme 26) Ensure the electrical tabs are facing outboard.
5. Install the pressure control solenoid retainer and retaining bolt. Tighten the pressure control solenoid retaining bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
6. Install the TCC PWM solenoid to the control valve body. (Scheme 67)
7. Install the TCC PWM solenoid retainer.
8. Connect the internal wiring harness electrical connectors to the following components: Transmission fluid pressure switch. (Scheme 25) 1-2 shift control solenoid. 2-3 shift control solenoid. Pressure control solenoid. TCC PWM solenoid. 3-2 shift control solenoid.
9. Install the 1-2 accumulator. See «ACCUMULATOR ASSEMBLY»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__accumulator-assembly).
10. Connect the transmission harness 20-way connector to the transmission pass through connector. Align the arrows on each half of the connector and insert straight down. (Scheme 66)
11. Install the transmission oil pan and filter. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION.

1. Ensure removal of the valve body is necessary before proceeding. The following components can be serviced without removing the valve body from the transmission. (Scheme 71) Torque Converter Clutch Solenoid (1). Pressure Control Solenoid (2). Internal Wiring Harness (3). 2-3 Shift Solenoid (4). 1-2 Shift Solenoid (5). Transmission Fluid Pressure Manual Valve Position Switch (6). 3-2 Shift Solenoid (7). Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid (8).
2. Remove the fluid level indicator.
3. Remove the filter. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION.
4. Disconnect the internal wiring harness electrical connectors from the following components: Transmission fluid pressure manual valve position switch. (Scheme 25) 1-2 shift control solenoid. 2-3 shift control solenoid. Pressure control solenoid. TCC PWM solenoid. 3-2 shift control solenoid. Bracket bolt.
5. Remove the fluid indicator stop bracket bolt. (Scheme 72)
6. Remove the fluid indicator bracket (1).
7. Remove the TCC PWM solenoid retainer (2) with a small screwdriver. Rotate the solenoid (1) in the bore, if necessary, until the flat part of the retainer (2) is visible.
8. Remove the TCC PWM solenoid (1) to access the TCC solenoid retaining bolts. (Scheme 67)
9. Remove the TCC solenoid bolts. (Scheme 73)
10. Remove the TCC solenoid (with "O" ring seal) and wiring harness from the control valve body.
11. Reposition the harness to the side of the transmission case. (Scheme 69)
12. Remove the control valve body bolts which retain the transmission fluid pressure switch to the control valve body. (Scheme 74)
13. Remove the transmission fluid pressure switch.
14. Inspect the transmission fluid pressure switch for damage or debris. (Scheme 75)
15. Remove the manual detent spring retaining bolt.
16. Remove the manual detent spring. (Scheme 76)
17. Inspect the manual detent spring for cracks or damage. CAUTION: Keep the control valve body level when lowering it from the vehicle. This will prevent the loss of checkballs located in the control valve body passages.
18. Remove the remaining valve body bolts.
19. Carefully begin to lower the control valve body down from the transmission case while simultaneously disconnecting the manual valve link. (Scheme 77)

Scheme 71

Scheme 72

Scheme 73

Scheme 74

Scheme 75

Scheme 76

Scheme 77

1. Install the 7 checkballs in the valve body. (Scheme 78)
2. Install the control valve body to the transmission case while simultaneously connecting the manual valve link to the manual valve. (Scheme 77)
3. Verify the manual valve link (3) is installed properly to the inside detent lever (1) and the manual valve (2). (Scheme 79)
4. Install one bolt (M6 X 1.0 X 47.5) hand tight in the center (1) of the valve body to hold it in place. (Scheme 80) NOTE: When installing bolts throughout this procedure, be sure to use the correct bolt size and length in the correct location as specified.
5. DO NOT install the transmission fluid indicator stop bracket and bolt at this time. Install but DO NOT tighten the control valve body bolts which retain only the valve body directly. (Scheme 81) Each numbered bolt location corresponds to a specific bolt size and length, as indicated by the following: M6 X 1.0 X 65.0 (1). M6 X 1.0 X 54.4 (2). M6 X 1.0 X 47.5 (3). M6 X 1.0 X 35.0 (4). M8 X 1.0 X 20.0 (5). M6 X 1.0 X 12.0 (6). M6 X 1.0 X 18.0 (7).
6. Install the manual detent spring.
7. Install but DO NOT tighten the manual detent spring retaining bolt. (Scheme 76)
8. Install the transmission fluid pressure switch. (Scheme 74)
9. Install but DO NOT tighten the control valve body bolts which retain the transmission fluid pressure switch to the control valve body. (Scheme 74) NOTE: Torque valve body bolts in a spiral pattern starting from the center. If the bolts are torqued at random, valve bores may be distorted and inhibit valve operation.
10. Tighten the control valve body bolts in a spiral pattern starting from the center, as indicated by the arrows. (Scheme 81) Tighten the control valve body bolts (in sequence) to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
11. Ensure the manual detent spring is aligned properly with the detent lever. Tighten the manual detent spring bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
12. Install the TCC solenoid with a new "O" ring seal to the valve body.
13. Install the TCC solenoid bolts. Tighten the TCC solenoid retaining bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
14. Install the internal wiring harness to the valve body. The internal wiring harness has a tab (1) on the edge of the conduit. (Scheme 82)
15. Place the tab between the valve body and the pressure switch in the location shown (2). See. Press the harness into position on the valve body bolt bosses (1, 3). (Scheme 83)
16. Install the TCC PWM solenoid (1) to the control valve body.
17. Install the TCC PWM solenoid retainer (2). (Scheme 67)
18. Install the transmission fluid indicator stop bracket (1) and bolt (2). (Scheme 72) Tighten the transmission fluid indicator stop bracket bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
19. Connect the internal wiring harness electrical connectors to the following components: The transmission fluid pressure manual valve position switch. (Scheme 25) 1-2 shift control solenoid. 2-3 shift control solenoid. Pressure control solenoid. TCC PWM solenoid. 3-2 shift control solenoid.
20. Install the transmission oil pan and filter. See «DRAINING & REFILLING»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing) under LUBRICATION.

Scheme 78

Scheme 79

Scheme 80

Scheme 81

Scheme 82

Scheme 83

1. Raise and support the vehicle.
2. Disconnect the Vehicle Speed Sensor (VSS) electrical connector (2). (Scheme 84)
3. Remove the bolt. (Scheme 85)
4. Remove the VSS.
5. Remove the "O" ring seal.

Scheme 84

Scheme 85

1. Install the "O" ring seal onto the VSS. (Scheme 85)
2. Coat the "O" ring seal with a thin film of transmission fluid.
3. Install the VSS.
4. Install the VSS bolt. Tighten bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
5. Connect the VSS electrical connector (2). (Scheme 84)
6. Lower the vehicle.
7. Refill the fluid as required. See «LUBRICATION»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).

2-4 SERVO

Note. Tools required: Servo Cover Depressor (J-29714-A).

1. Remove the exhaust pipe. See.
2. Remove the heat shield bolts. (Scheme 36)
3. Remove the heat shield.
4. Remove the oil pan bolt below the servo.
5. Install the servo cover depressor. (Scheme 86)
6. Tighten the bolt on servo cover depressor in order to compress the servo cover.
7. Remove the servo cover ring. (Scheme 87)
8. Remove the servo cover depressor.
9. Remove the servo cover and "O" ring seal. If the cover is hung up on the seal, use a pick (2) in order to pull and stretch the seal (1) out of the groove. Cut and remove the "O" ring seal before removing the cover. (Scheme 88)
10. Remove the 2-4 servo. (Scheme 89)
11. Inspect the 4th apply piston, 2-4 servo converter, 2nd apply piston, and the servo piston inner housing for the following defects: Cracks. Scoring. Burrs and nicks.

Scheme 86

Scheme 87

Scheme 88

Scheme 89

1. Install NEW seals onto the servo pistons and the servo cover.
2. Install the 2-4 servo. (Scheme 89)
3. Install the servo cover depressor.
4. Tighten the bolt on servo cover depressor in order to compress the servo cover. (Scheme 86)
5. Install the servo cover ring.
6. Remove the servo cover depressor.
7. Install the oil pan bolt. Tighten the bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
8. Install the heat shield and bolts. (Scheme 36) Tighten the bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing__torque-specifications).
9. Install the exhaust pipe.
10. Fill transmission to proper level with appropriate fluid. See «LUBRICATION»(/cadillac/escalade/gmt800-2001-2006/remont/automatic-trans/#automatic-transmission-4l60-e4l65-e-servicing).

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

See also:
• AUXILIARY OIL COOLER
• OIL COOLER FLUSHING & FLOW CHECK
• RECOMMENDED FLUIDS
• FLUID CAPACITIES
• TORQUE SPECIFICATIONS
• ADJUSTMENTS
• REMOVAL & INSTALLATION
• ACCUMULATOR ASSEMBLY
• SHIFT CABLE