Automatic Transmission Servicing Cadillac Seville V

APPLICATION

TRANSAXLE APPLICATION

IDENTIFICATION

Transaxle has a metal identification plate or Service Replacement Transmission Assembly (SRTA) plate attached to rear face of transaxle. (Scheme 151) Transaxle RPO code is MH1.

Scheme 151

Identifying Oil Pan Gasket (Hydra-Matic 4T80-E). Scheme 152

SERVICE INTERVALS

Change the ATF and filter every 50,000 miles if the vehicle is mainly driven under one or more of these conditions

1. In heavy traffic where the outside temperature regularly reaches 90°F (32°C) or higher.
2. In hilly or mountainous terrain.
3. When doing frequent towing.
4. Uses such as found in taxi, police, limousine or delivery service.

If the vehicle is not used under any of these conditions, change the fluid and filter every 100,000 miles.

CHECKING FLUID LEVEL & CONDITION

Note. Applying the brake pedal during this procedure will affect the fluid level reading.

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). Park the vehicle on a level surface. 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. Apply the parking brake and let the engine idle for 3 minutes. Remove the transmission fluid level indicator, wipe the indicator clean, and reinsert the indicator. Give the indicator a full twist to close. Wait 3 seconds and remove the indicator. Read both sides of the indicator. The fluid must be within the hot cross-hatched area using the lowest level reading.

1. Check the fluid life monitor. Is the monitor life 10 percent or less? If so, go to step 16 . If not, go to next step.
2. Check the fluid color. Is the fluid Red in color? If so, go to step 6 . If not, go to next step.
3. Is the fluid color non-transparent Pink? If so, go to step 15 . If not, go to next step.
4. Is the fluid Light Brown in color? If so, go to step 6 . If not, go to next step.
5. Is the fluid Black in color and/or have a burnt smell? If so, go to step 15 . If not, go to next step.
6. Does the fluid appear as solid liquid, and not foamy or full of bubbles, on the level indicator? If so, go to next step If not, go to step 8 .
7. Check the fluid level. The proper level should be in the middle of the crisscross pattern on the level indicator. Is the fluid level satisfactory? If so, go to step 20 . If not, go to next step.
8. Is the fluid level high on the indicator? If so, go to step 13 . If not, go to next step.
9. Is the fluid level low on the indicator? If not, go to step 5 . If so, go to next step.
10. Check for external leaks. Did you find an external leak? If not, go to step 12 . If so, go to next step.
11. Repair the leaks as needed. Are any leaks still present? If so, go to step 10 . If so, go to next step.
12. Add fluid until the level of the fluid is in the middle of the crisscross pattern on the level indicator. Is the fluid level satisfactory? If not, go to step 7 . If so, go to step 20 .
13. Drain the fluid until the fluid level is in the middle of the crisscross mark on the level indicator. Is the fluid level satisfactory? If so, go to step 20 . If not, go to step 7 .
14. Replace the oil cooler. Flush the oil cooler lines. See «OIL COOLER FLUSHING»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__oil-cooler-flushing) . Did you complete the replacement? If so, go to step 16 .
15. Drain the transmission fluid. Inspect the oil pan. Are there signs of internal component damage in the bottom of the transaxle oil pan? If so, go to step 18 . If not, go to step 14 .
16. Replace the transmission fluid and filter. See «DRAINING & REFILLING»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__draining-refilling) . Did you complete the replacement? If so, go to step 7 .
17. Flush the oil cooler and the lines. See «OIL COOLER FLUSHING»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__oil-cooler-flushing) . Did you complete the transmission oil cooler flushing and flow test? If so, go to step 19 .
18. Overhaul the transaxle. See appropriate OVERHAUL article in AUTOMATIC TRANSMISSIONS. Is the transaxle overhaul procedure complete? If so, go to step 17 .
19. Add new transmission fluid. Did you add new transmission fluid? If so, go to step 7 .
20. Check the fluid level and correct as necessary. Is the fluid level satisfactory? If so, go to next step.
21. If equipped, reset the oil life monitor to 100 percent. Are all of the reset procedures complete? If so, system is okay.

RECOMMENDED FLUIDS

Manufacturer recommends DEXRON-III® ATF. Fill transaxle with appropriate quantity. See FLUID CAPACITIES .

FLUID CAPACITIES

TRANSAXLE FLUID CAPACITIES (1)

DRAINING & REFILLING

1. Raise the vehicle and support. Place a drain pan under the transaxle bottom pan in order to catch the fluid.
2. Loosen the bottom pan bolts. Drain any fluid in the pan. Remove the bottom pan bolts, pan, and seal. (Scheme 153) Inspect the bottom pan for dents or nicks on the sealing surface. If damaged, replace.
3. For proper sealing, clean and dry the bottom pan and the case sealing surfaces. In order to maintain proper bolt torque, the bolts and tapped holes in the case must be clean and dry.
4. Install the bottom pan, new seal, and bolts. Finger-tighten the bolts. (Scheme 153) Tighten the pan bolts 3 times to the proper specification, in the sequence shown. (Scheme 154)
5. Lower the vehicle. Add DEXRON-III® transmission fluid as required.

Scheme 153

Scheme 154

OIL COOLER FLUSHING

Note. GM studies indicate that plugged or restricted transaxle oil coolers and pipes cause insufficient transaxle lubrication and elevated operating temperatures which can lead to premature transaxle wear-out. Many cases could have been prevented by following published procedures for transaxle oil cooler flushing and flow checking. This procedure includes flushing and flow checking the auxiliary oil cooler, if equipped. GM requires that oil cooler flushing and flow checking be performed whenever a transaxle is removed from the vehicle for service within warranty, including: Goodwin, SWAT, major overhaul, torque converter replacement and oil pump replacement.

Preparation

1. After the repair or replacement transaxle 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 oz. (0.6L) of flushing fluid using the measuring cup (6). Do not overfill. Install the fill cap (9) on the transmission oil cooler and line flusher and pressurize the flusher tank (4) to 80-100 psi, using the shop air supply at the tank air valve (9). (Scheme 155)
3. Connect the transmission oil cooler and line flusher discharge hose (5) to the oil cooler return pipe (top connector). Clip the discharge hose (5) onto the oil drain container. Attach the transmission oil cooler and line flusher to the undercarriage of the vehicle with the hook provided, and connect the flushing system feed supply hose (3) from the transmission oil cooler and line flusher to the oil cooler feed pipe (bottom connector).
4. With the water supply valve (1) on the transmission oil cooler and line flusher in the OFF position, connect the water supply hose (7) from the transmission oil cooler and line flusher to the water supply at the faucet. (Scheme 155)and (Scheme 156). Turn ON the water supply at the faucet.

Scheme 155

Scheme 156

Initial Flush

1. Turn the transmission oil cooler and line 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. (Scheme 157) 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.
2. Turn the transmission oil cooler and line flusher water supply valve (1) to the OFF position and clip the discharge hose (5) onto an appropriate container with a lid, to avoid splashback. (Scheme 158) Turn the transmission oil cooler and line flusher water supply valve (1) to the ON position and depress the trigger (8) to mix cooler flushing solution into the water flow. (Scheme 155) Use the clip provided on the handle to hold the trigger (8) down. The discharge will foam vigorously when the solution is introduced into the water stream.
3. Flush the oil cooler and pipes with water and solution for 2 minutes. During this flush, attach the shop air supply of 120 psi to the flushing system feed air valve (2) located on the transmission oil cooler and line flusher for 3-5 seconds at the end of every 15-20 second interval to create a surging action.
4. Release the trigger (8) and turn the transmission oil cooler and line flusher water supply valve (1) to the OFF position.

Scheme 157

Scheme 158

Back Flush

1. Disconnect both hoses from the oil cooler pipes and then connect them to the opposite oil cooler pipe. This will allow the oil cooler and pipes to be back flushed. Repeat steps 2 and 3 of the INITIAL FLUSH procedure. 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.
2. Turn the transmission oil cooler and line flusher water supply valve (1) to the OFF position and turn OFF the water supply at the faucet. (Scheme 156) Attach the shop air supply to the flushing system feed air valve (2) on the transmission oil cooler and line flusher, and blow out the water from the oil cooler and pipes. Continue until no water comes out of the discharge hose (5).

Flow Check

1. Disconnect both hoses from the oil cooler pipes. Connect the oil cooler feed pipe, front connector, located on the case cover, to the transaxle and the return pipe, rear connector, located on the case, to the discharge hose (5). Clip the discharge hose (5) onto the empty oil drain container. (Scheme 158)
2. Confirm the transaxle is filled with automatic transmission fluid. See «CHECKING FLUID LEVEL & CONDITION»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__checking-fluid-level-condition).
3. Start the engine with the transaxle in PARK range and run for 30 seconds. A minimum of 2 qts. (1.9L) must be discharged during this 30 second run time. If fluid flow is greater than 2 qts. (1.9L) in 30 seconds, go to step 4. If fluid flow is less than 2 qts. (1.9L) in 30 seconds, perform the following diagnosis. Disconnect the oil cooler feed line at the radiator. Connect the discharge hose (5) to the cooler feed line. Clip the discharge hose (5) to the empty oil drain container. (Scheme 158) Start the engine with the transaxle in PARK range and run for 30 seconds. A minimum of 2 qts. (1.9 L) must be discharged during this 30 second run time. Do the following according to the flow rate: Insufficient feed flow: inspect the transaxle. Sufficient feed flow: inspect the oil cooler return pipe and the oil cooler, and auxiliary cooler, if equipped.
4. Remove the discharge hose (5), reconnect the cooler feed and return pipes to the transaxle and refill the unit to the proper fluid level. Inspect the transaxle oil cooler pipe connections at the radiator, the auxiliary cooler, if equipped, and the transaxle for leaks.

Clean Up

Disconnect the water supply hose (7) from the transmission oil cooler and line flusher and bleed any remaining air pressure from the flusher tank (4). (Scheme 155) Remove the fill cap (9) from the transmission oil cooler and line flusher and return any unused flushing solution to its container. Rinse the transmission oil cooler and line flusher with water. Do not store the transmission oil cooler and line flusher with flushing solution in it. After every third use, clean the transmission oil cooler and line flusher as described in the instructions included with the tool. Dispose of any waste water/solution and transmission fluid in accordance with local regulations.

ON-VEHICLE REPAIRS

Various components may be serviced without transaxle removal. For servicing of these components, see appropriate component under ADJUSTMENTS and/or REMOVAL & INSTALLATION . For additional information on servicing electrical components, see appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.

ADJUSTMENTS

SHIFT CABLE

Note. Adjust the shift cable while the transaxle and while the gear selector are in the Neutral position only. Failure to do so may cause misadjustment of shift cable.

1. Set the parking brake. Block the wheels. Remove the shift cable terminal from the transaxle manual shaft lever pin.
2. Use an appropriate tool to pry on the shift cable terminal at the manual control lever pin to remove the shift cable terminal from the manual control lever pin. (Scheme 159) Prying or pulling up on any other part of the shift cable may result in damage to the shift cable.
3. Fully lift the adjuster lock button. Ensure the adjuster is free to move. Place the transaxle manual shaft lever in (N) Neutral. In order to find (N) Neutral, rotate the lever fully counterclockwise to (P) Park, and then clockwise 2 clicks into (N) Neutral.
4. Place the gear shifter inside the car to the (N) Neutral position. If adjusting a column shift vehicle, rotate the shift lever to the LOW 1 position, fully down. Push forward and upward slowly past the first click, which is overdrive, until it stops solidly at the 2nd click. It is in (N) Neutral.
5. Underhood, grasp the shift cable terminal and pull it toward the pin on the manual shaft lever. The shift cable adjuster spring should compress as the terminal is moved toward the pin.
6. Attach the pin to the lever by pushing down carefully until it snaps. Do not pull the terminal beyond the pin and then push back. This action could move the shifter out of (N) Neutral.
7. Press the adjuster lock button down flush with the adjuster body. (Scheme 160) Shift to (P) Park and release the parking brake while applying the service brake. Start the engine and assure all of the indicated gear positions match the vehicle response.

Scheme 159

Scheme 160

REMOVAL & INSTALLATION

Note. Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Note. Some removal and installation procedures may require the removal of engine and/or transaxle mounts. For procedures related to these components, see appropriate REMOVAL & INSTALLATION article.

Removal

1. Raise and support the vehicle. Support the vehicle with safety stands. Remove the right drive axle. See appropriate article in DRIVE AXLES.
2. Remove the wiring harness. Remove the bolts securing the front transaxle brace to the transaxle and right cylinder head. See «TRANSAXLE BRACE»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing).
3. Remove the right transaxle to engine brace. Remove the vehicle speed sensor. See «VEHICLE SPEED SENSOR»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Remove the ground wire from the case.
4. Remove the following parts from the case extension: Five 13-mm bolts (128, 129). One 15-mm stud (127).
5. Remove the case extension (134) and the seal (126). (Scheme 161) Remove the roller thrust bearing (132) and the selective washer (133).
6. Remove the 8-mm scavenge tube bolt (15). (Scheme 162) Remove the scavenge tube by prying on the differential. Remove the scavenge tube seal. (Scheme 163)

Scheme 161

Scheme 162

Scheme 163

Installation

1. Inspect the scavenge tube (54) for damage and clogging. (Scheme 162) Install the scavenge tube seal into the case. (Scheme 163) Install the scavenge tube into the scavenge tube seals, located in the case and in the driven sprocket support.
2. Tap the scavenge tube lightly with a plastic hammer to ensure a tight fit in both seals. Install the scavenge tube bolt (15). Tighten the bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications). Inspect the case to case extension seal (126). (Scheme 161)
3. Inspect the case extension mating surface for damage. Install the following parts: The selective washer (133). The thrust washer (132). The case extension seal (126). The case extension (134).
4. Apply Pipe Thread Sealant (GM P/N 12346004) to bolt threads before installation. Install the case extension bolts (128, 129). (Scheme 161) Hand tighten the bolts (128, 129) until the case extension is seated onto the case. Install the long Dial Indicator Mounting Post (J-25025-7A) and the Dial Indicator Set (J-8001). (Scheme 164)
5. Position the dial indicator with the stem contacting the output shaft. Set the dial indicator to zero. Insert the screwdriver through the vehicle speed sensor bore and lift the speed sensor rotor for measurement. Protect the bore with a piece of wood or a suitable piece of plastic.
6. Proper end play clearance is 0.006-0.026 in (0.15-0.65 mm). Record the measured specification and, if necessary, adjust the clearance with the proper thickness selective thrust washer and reassemble. (Scheme 164) Remove the dial indicator set and the post.
7. Install the stud (127). (Scheme 161) Tighten the bolt (128) and the stud (127) to 37-40 ft. lbs. (50-55 N.m). Tighten the bolt (129) to 15-20 ft. lbs. (20-27 N.m). Install the vehicle speed sensor. See «VEHICLE SPEED SENSOR»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Install the ground wire to case.
8. Install the transaxle brace. See «TRANSAXLE BRACE»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Install the bolts securing the front transaxle brace to the transaxle and right cylinder head. Install the wiring harness. Install the right drive axle. See appropriate article in DRIVE AXLES.
9. Remove the safety stands. Lower the vehicle. Fill transaxle with appropriate fluid to proper level. See «LUBRICATION»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing).

Scheme 164

1. Remove the scavenge screens. See «SCAVENGE SCREENS & SEALS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Remove the lower controls and valve assembly. See «LOWER CONTROL VALVE BODY ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Using a pair of pliers, grasp the detent roller end of the detent spring (27). (Scheme 165) Remove the detent spring (27).
2. Remove the 13-mm detent roller bolt pivot arm, the sleeve, and the washer (26). Remove the 15-mm manual shaft nut (18).
3. You must hold the detent lever (17) in place when removing the manual shaft nut (18) in order to prevent damage to the actuator rod (21). Remove the detent lever (17) and the actuator rod (21).

Scheme 165

1. Install the detent lever (17) and the actuator rod (21). (Scheme 165) You must hold the detent lever (17) in place when installing the manual shaft nut (18) in order to prevent damage to the actuator rod (21).
2. Install the 15-mm manual shaft nut (18). Tighten the manual shaft-to-detent lever nut to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications).
3. Install the 13-mm detent roller bolt pivot arm, the sleeve, and the washer (26). Tighten the detent lever and roller assembly bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications).
4. Using a pair of pliers, grasp the detent roller end of the detent spring (27). Install the detent spring (27). Install the lower controls and valve assembly. See «LOWER CONTROL VALVE BODY ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Install the scavenge screens. See «SCAVENGE SCREENS & SEALS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing).

Remove the case extension. See CASE EXTENSION HOUSING. Rotate the manual shaft (16) counterclockwise in order to place the transaxle in Park and prevent the differential from rotating. (Scheme 166) Remove the four, 15-mm differential bolts (119). (Scheme 167) Remove the differential carrier (110).

Scheme 166

Scheme 167

Locate the dowels on the final drive carrier (100) and insert these dowels into the holes in the differential carrier (110) for proper assembly. (Scheme 168) Install the differential carrier bolts (119). Tighten the bolts using a star pattern to specification. See TORQUE SPECIFICATIONS. Install the case extension. See CASE EXTENSION HOUSING.

Scheme 168

Remove differential carrier. See DIFFERENTIAL CARRIER. Push on the output shaft in order to expose the left side differential gear snap ring. Remove the left side differential gear to output shaft snap ring (56). (Scheme 169) Remove the differential side gear (118) and thrust washer (117). Remove the final drive carrier (100) and the thrust bearing. (Scheme 168) Remove the final drive sun gear (121).

Install the sun gear (121) with the bushing and the seal side facing differential. (Scheme 168) Install the final drive carrier (100). Turn the unit until it meshes with the sun gear and the internal gear teeth. Install the left thrush washer (117). (Scheme 169) Install the left differential side gear (118). Install the snap ring (56). Use the manual shaft to place the transaxle in Park. This will lock up the final drive unit. The actuator rod will move up. Install differential carrier. See DIFFERENTIAL CARRIER.

Scheme 169

Remove the fluid-level indicator from the transaxle. (Scheme 170) Rotate the indicator counterclockwise to unlock, then pull the indicator straight out of the transaxle. Inspect the O-ring seal on the indicator for nicks. Replace the seal, if damaged.

Scheme 170

Install the fluid-level indicator into the transaxle. (Scheme 170) Push the indicator straight into the transaxle. Rotate clockwise in order to lock.

1. Remove the bottom pan and seal, scavenge screens, and the lip seals. See «SCAVENGE SCREENS & SEALS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Remove the bolts (534) from the oil transfer plate (956) and wire harness extension retaining clip. (Scheme 171) Remove the oil transfer plate (956). Disconnect the wire harness extension (943) from the wire harness assembly (12). (Scheme 172)
2. Use a small screwdriver in order to disconnect the manual valve link retainer (915) from the manual valve link (913).
3. Remove the manual valve and link assembly link (913) out of the inside detent lever (17). Remove the 2 nuts (955) and the 14 bolts (958) from the lower control valve body assembly (903). (Scheme 174)
4. Remove the lower valve assembly (consisting of the channel plate, control valve body, accumulator assembly, and wire harness extension) from the transaxle case as a single unit.
5. For disassembly of the lower control valve body assembly, see appropriate OVERHAUL article in AUTOMATIC TRANSMISSIONS.

Scheme 171

Scheme 172

Scheme 173

Scheme 174

1. For reassembly of the lower control valve body assembly, see appropriate OVERHAUL article in AUTOMATIC TRANSMISSIONS.
2. Install the lower valve assembly (consisting of the channel plate, control valve body, accumulator assembly, and the wire harness extension) to the transaxle case as a single unit.
3. Place the lower controls assembly over the forward support studs. The bolts (958) without the flange are located next to the oil transfer plate. (Scheme 174)
4. Hand start the bolts and nuts to the lower valve assembly. Install the oil transfer plate. Position the wire harness extension retaining clip over the appropriate bolt hole in the oil transfer plate (Scheme 171)
5. Position the lower control valve body wire harness retaining clips (943). (Scheme 172)
6. Hand start the bolts to the oil transfer plate. (Scheme 171) Tighten the bolts and nuts (534) to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications).
7. Insert the manual valve link (913) into the inside detent lever (17). (Scheme 173) Clip the manual valve link retainer (915) onto the manual valve link (913).
8. Connect the wire harness extension to the wire harness assembly. Install the bottom pan and seal, the scavenger screens, and the lip seals. See «SCAVENGE SCREENS & SEALS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing).

Disconnect the shift linkage by removing the nut at the manual shaft level on the top of the transaxle. Remove the detent lever and roller assembly. See DETENT LEVER & ROLLER ASSEMBLY . Remove the following parts

1. The manual shaft (16) out through the top of the bell housing. (Scheme 175)
2. The manual shaft seal (20).

Scheme 175

Install the manual shaft seal (20). (Scheme 175) Install the manual shaft (16) through the top of the bell housing. Install the detent lever and roller assembly. See DETENT LEVER & ROLLER ASSEMBLY. Install the manual shaft nut by hand. Tighten the manual shaft lever nut to specification. See TORQUE SPECIFICATIONS.

Removal (DeVille & Seville)

1. Remove the upper filler panel. (Scheme 176) Remove the air cleaner assembly. Remove the upper transaxle oil cooler pipe retaining bolt from the fan shroud. (Scheme 177) Slide the plastic cap off the upper transaxle oil cooler pipe quick connect fitting.
2. Disconnect the upper transaxle oil cooler pipe from the radiator using the Cooler Quick Connect Tool (J-41623-B). Raise and support the vehicle. Remove the rear exhaust manifold pipe in order to gain access to the upper transaxle oil cooler pipe fitting.
3. At the rear of the transaxle, remove the upper transaxle oil cooler pipe fitting from the transaxle. (Scheme 178) Remove the upper transaxle oil cooler pipe wire retainers from the oil cooler pipe.
4. Remove the upper transaxle oil cooler pipe from the vehicle. Lower the vehicle. Disconnect the lower transaxle oil cooler pipe fitting from the radiator. (Scheme 179)
5. Slide the plastic cap off the lower transaxle oil cooler pipe quick connect fitting. Disconnect the lower transaxle oil cooler pipe from the transaxle using the cooler quick connect tool.
6. Remove the lower transaxle oil cooler pipe from the vehicle. (Scheme 180)

Scheme 176

Scheme 177

Scheme 178

Scheme 179

Scheme 180

1. Position the lower transaxle oil cooler pipe into the engine compartment. Connect the lower transaxle oil cooler pipe to the radiator. (Scheme 179)
2. Tighten the transaxle oil cooler pipe fitting to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications). Connect the lower transaxle oil cooler pipe to the front of the transaxle utilizing one of the following methods. (Scheme 180)
3. Push the transaxle oil cooler pipe into the transaxle quick connect fitting, until a "CLICK" is heard. Tug gently on the cooler pipe to ensure proper retention. Slide the plastic cap over the quick connect fitting.
4. Raise and support the vehicle. Position the upper transaxle oil cooler pipe up into the engine compartment. (Scheme 178) Install the upper transaxle oil cooler pipe wire retainers to the transaxle. Install the upper transaxle oil cooler pipe at the rear of the transaxle. Tighten the transaxle oil cooler pipe fitting to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications).
5. Push the transaxle oil cooler pipe into the transaxle quick connect fitting, until a "CLICK" is heard. Tug gently on the cooler pipe to ensure proper retention. Slide the plastic cap over the quick connect fitting.
6. Install the rear exhaust manifold pipe. Lower the vehicle. Push the upper transaxle oil cooler pipe into the radiator quick connect fitting, until a "CLICK" is heard.
7. Tug gently on the cooler pipe to ensure proper retention. Slide the plastic cap over the quick connect joint. (Scheme 181) Install the upper transaxle oil cooler pipe retaining bolt to the fan shroud. (Scheme 177) Tighten the transaxle oil cooler pipe retaining bolt to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications).
8. Install the air cleaner assembly. Install the upper filler panel. (Scheme 176) Fill transaxle with appropriate fluid to proper level. See «LUBRICATION»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Inspect for fluid leaks.

Scheme 181

Removal (Eldorado)

1. Remove the upper filler panel. (Scheme 182) Remove the air cleaner assembly. Remove the upper transaxle oil cooler pipe fitting from the radiator. (Scheme 183)
2. Remove the lower transaxle oil cooler pipe fitting from the radiator. Slide the plastic cap off the lower transaxle oil cooler pipe quick connect fitting.
3. Disconnect the lower transaxle oil cooler pipe from the transaxle using the Cooler Quick Connect Tool (J-41623-B). (Scheme 180) Remove the lower transaxle oil cooler pipe from the vehicle.
4. Raise and support the vehicle. Remove the rear exhaust manifold pipe in order to gain access to the upper transaxle oil cooler pipe fitting.
5. At the rear of the transaxle remove the upper transaxle oil cooler pipe fitting from the transaxle. (Scheme 178) Remove the upper transaxle oil cooler pipe wire retainers from the oil cooler pipe. Remove the upper transaxle oil cooler pipe from the vehicle.

Scheme 182

Scheme 183

1. Position the upper transaxle oil cooler pipe up into the engine compartment. Install the upper transaxle oil cooler pipe wire retainers to the oil cooler pipe.
2. Install the upper transaxle oil cooler pipe at the rear of the transaxle. (Scheme 178) Tighten the transaxle oil cooler pipe fitting to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications). Install the rear exhaust manifold pipe. Lower the vehicle.
3. Position the lower transaxle oil cooler pipe into the engine compartment. Push the lower transaxle oil cooler pipe into the transaxle quick connect fitting, until a "CLICK" is heard. (Scheme 180)
4. Tug gently on the cooler pipe to ensure proper retention. Slide the plastic cap over the quick connect joint. Connect the lower transaxle oil cooler pipe fitting to the radiator. (Scheme 183)
5. Tighten the transaxle oil cooler pipe fitting to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications). Connect the upper transaxle oil cooler pipe fitting to the radiator.
6. Tighten the transaxle oil cooler pipe fitting to specification. See «TORQUE SPECIFICATIONS»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications). Install the air cleaner assembly. Install the upper filler panel. (Scheme 182)
7. DO NOT overfill the transaxle. Overfilling of the transaxle causes foaming, loss of fluid, shift complaints, and possible damage to the transaxle. Fill transaxle with appropriate fluid to proper level. See «LUBRICATION»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing). Inspect for fluid leaks.

Remove the throttle body air inlet duct. Remove the oil pressure test plug (1). (Scheme 184)

Scheme 184

Install the oil pressure test plug (1). (Scheme 184) Tighten the oil pressure test plug (1) to specification. See TORQUE SPECIFICATIONS. Install the throttle body air inlet duct.

Raise the vehicle. Remove the differential carrier. See DIFFERENTIAL CARRIER. Remove the left drive axle. Push on the output shaft in order to expose the snap ring. Remove the output shaft snap ring (56). Remove the left side differential gear (118). (Scheme 169) Remove the thrust washer (117). Remove the output shaft (57) through the opposite end of the case. (Scheme 185)

Scheme 185

Inspect the output shaft (57) splines for burrs or damage. (Scheme 186) Inspect the snap rings (56) for over expansion. Install the snap rings (56) onto the output shaft and install the output shaft (57) from the channel plate side of the transaxle. Install the differential carrier. See DIFFERENTIAL CARRIER. Install the left drive axle.

Scheme 186

Remove the final drive assembly. See FINAL DRIVE ASSEMBLY. Remove the final drive internal gear snap ring (135). (Scheme 187) Remove the final drive internal gear (120). Remove snap ring from park gear. Remove park gear from housing.

Scheme 187

Install park gear into housing. Install the snap ring. Install the final drive internal gear (120). (Scheme 187) Install the final drive internal gear snap ring (135). Install the final drive assembly. See FINAL DRIVE ASSEMBLY.

Remove the lower valve assembly. See LOWER CONTROL VALVE BODY ASSEMBLY. Remove the parking gear. See PARKING GEAR. Move the manual shaft from the Park position. Drive out the parking pawl pivot pin using a pin punch. (Scheme 188) Push down on the spring while driving the pin out. Remove the parking pawl and the spring. Inspect the following

1. Parking pawl tooth for damage.
2. Parking pawl spring for over expansion.
3. Pivot pin for scorning, excessive wear.

Scheme 188

Place the pawl in the case slot. (Scheme 189) Attach the spring to the pawl. Insert the pivot pin through the spring and pawl. (Scheme 190) The hook end of the spring locates on the case and the square end on top of the parking pawl. Install the pivot pin using a mallet. Install the park gear. See PARKING GEAR. Install the lower valve assembly and the bottom pan. See LOWER CONTROL VALVE BODY ASSEMBLY.

Scheme 189

Scheme 190

1. Remove the transaxle oil pan. See «DRAINING & REFILLING»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__draining-refilling) under LUBRICATION.
2. Remove the left and/or right scavenge screens. (Scheme 191)
3. Remove the seals. Use a small screwdriver to pry the seals from the case. Do not score or damage the case.
4. Inspect the bottom pan and the transaxle case for dents or nicks in the sealing surface. Replace them if they are damaged.
5. Inspect the bolts for damaged threads. Replace the bolts if they are damaged.
6. Clean and dry the bottom pan and the case sealing surfaces. The bottom pan and the case sealing surfaces must be clean and dry for proper sealing.
7. Clean and dry the bolts and the tapped holes in the case. The bolts and the tapped holes in the case must be clean and dry in order to maintain the proper bolt torque.

Scheme 191

1. Install the new left and right scavenge seals.
2. Install the new left and right scavenge screens. (Scheme 191)
3. Install the transaxle oil pan. See «DRAINING & REFILLING»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__draining-refilling) under LUBRICATION.

1. Set the park brake and chock the wheels. Fully lift the retainer from the shift cable mechanism. (Scheme 192)
2. Disconnect the shift cable terminal from the transaxle manual shift lever pin. (Scheme 193) Press the locking tabs inward in order to release the shift cable from the bracket.
3. Remove the left console trim panel. See appropriate SHIFT INTERLOCK SYSTEMS article in AUTOMATIC TRANSMISSIONS. Remove the console trim plate. Remove the shift cable from the shift lever pin. Pull the lock release and remove the shift cable (1) from the console. (Scheme 194)
4. Unplug the shift cable grommet at the cowl panel and remove the shift cable from the vehicle. (Scheme 195)

Scheme 192

Scheme 193

Scheme 194

Scheme 195

1. Install the shift cable through the cowl panel and seat the grommet. (Scheme 195) Slide the shift cable (1) fully into the console until it snaps into place. (Scheme 194) Connect the shift cable terminal to the shift lever pin.
2. Install the console trim plate. See appropriate SHIFT INTERLOCK SYSTEMS article in AUTOMATIC TRANSMISSIONS. Install the left console trim panel.
3. Insert the shift cable into the bracket. (Scheme 193) Connect the shift cable terminal to the transaxle manual shift lever pin.
4. Insert the retainer to the shift cable mechanism. (Scheme 192) Adjust the shift cable. See «SHIFT CABLE»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__shift-cable) under ADJUSTMENTS.

1. Remove the cable end cap from the transmission park/neutral position switch lever. Remove the cable from the bracket by prying on the lock button to the unlocked position. (Scheme 196)
2. Remove the left closeout insulator panel. See appropriate SHIFT INTERLOCK SYSTEMS article in AUTOMATIC TRANSMISSIONS. Remove the console center trim panel. Remove the shift control cable from the floor shift assembly. (Scheme 197) Remove the cable from the vehicle. (Scheme 198)

Scheme 196

Scheme 197

Scheme 198

1. Install the shift control cable to the vehicle. (Scheme 198) Install the cable end cap to the floor shift assembly. (Scheme 197) Install the console center trim panel.
2. Install the left closeout insulator panel. Install the cable into the retaining bracket. (Scheme 196) Push down on the locking tab. Install the cable end cap to the transmission position switch lever.

Removal (DeVille)

1. Set the park brake and chock the wheels. Fully lift the retainer from the shift cable mechanism. (Scheme 192)
2. Disconnect the shift cable terminal from the manual shift lever pin. (Scheme 193) Press the locking tabs inward in order to release the shift cable from the bracket.
3. Remove the left closeout/insulator panel. Disconnect the shift cable terminal from the shift control lever pin. (Scheme 199)
4. Remove the retainer from the shift cable mechanism. Press the locking tabs (1) inward in order to release the shift cable (2) from the bracket. (Scheme 200)
5. Unplug the shift cable grommet at the cowl panel and remove the shift cable from the vehicle. (Scheme 195)

Scheme 199

Scheme 200

1. Install the shift cable through the cowl panel and seat the grommet. (Scheme 195) Slide the transaxle range selector cable (2) fully into the bracket until it snaps into place. (Scheme 200)
2. Connect the transaxle range selector cable terminal to the shift lever pin. (Scheme 199) Install the retainer to the transaxle range selector cable mechanism.
3. Install the left closeout/insulator panel. See appropriate SHIFT INTERLOCK SYSTEMS article in AUTOMATIC TRANSMISSIONS. Insert the transaxle range selector cable into the bracket. Connect the transaxle range selector cable terminal to the transaxle manual shift lever pin. (Scheme 193)
4. Install the retainer to the transaxle range selector cable mechanism. (Scheme 192) Adjust the automatic transmission range selector cable. See «SHIFT CABLE»(/cadillac/seville/v-1998-2004/remont/automatic-trans/#automatic-transmission-servicing__shift-cable) under ADJUSTMENTS.

Remove the right front wheel. Remove the heat shield fasteners. (Scheme 201) Remove the heat shield. Remove the fasteners (1, 3) from the brace. (Scheme 202) Remove the brace (2).

Scheme 201

Scheme 202

Install the engine to transaxle brace (2). Install the fasteners (1, 3) into the engine and transaxle. (Scheme 202) Tighten the transaxle brace bolts to specification. Install the heat shield. (Scheme 201) Install the heat shield fasteners. Tighten the heat shield nuts to specification. See TORQUE SPECIFICATIONS. Install the right front tire.

Raise the vehicle. Remove the bolts (1, 3) securing the front transaxle brace (2) to the transaxle and right cylinder head. (Scheme 202) Remove the electrical connector at the vehicle speed sensor. Remove the retaining bolt (131) and the sensor (130). (Scheme 203) Twisting the sensor while pulling outward will aid in removal.

Scheme 203

Install the vehicle speed sensor (130) and the retaining bolt (131). (Scheme 203) Install a new O-ring seal on sensor if necessary. Tighten the bolt to specification. See TORQUE SPECIFICATIONS. Install the electrical connector at the sensor. Install the bolts (1, 3) securing the front transaxle brace (2) to the transaxle and right cylinder head. (Scheme 202) Lower the vehicle.

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

See also:
• OIL COOLER FLUSHING
• DRAINING & REFILLING
• FLUID CAPACITIES
• CHECKING FLUID LEVEL & CONDITION
• ADJUSTMENTS
• REMOVAL & INSTALLATION
• TRANSAXLE BRACE
• TORQUE SPECIFICATIONS
• SHIFT CABLE