GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Automatic Transaxle Assembly

Print

REMOVAL & INSTALLATION



4T60 and 4T60-E
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the air cleaner. Disconnect the throttle valve cable and remove the throttle valve cable/engine cooler line bracket.
  4.  
  5. Remove the exhaust crossover pipe.
  6.  
  7. Disconnect the shift linkage, shift cable, and bracket. It is not necessary to remove the cable from the bracket.
  8.  
  9. Label and detach the electrical connectors for the converter clutch, cruise control servo, and neutral safety switch.
  10.  
  11. Remove the upper transaxle-to-engine bolts and studs in positions 2, 3, 4, and 5, as shown in the illustration.
  12.  



Click image to see an enlarged view

Fig. Transaxle-to-engine blots/studs

  1. Disconnect the vacuum line at the vacuum modulator, where applicable.
  2.  



Click image to see an enlarged view

Fig. Modulator vacuum line

  1. Support the engine with engine support tool J-28467 or equivalent. The engine should be supported in its normal position; it is not necessary to actually raise the engine.
  2.  



Click image to see an enlarged view

Fig. Engine support fixture

  1. Raise and safely support the vehicle. Remove the front wheel and tire assemblies.
  2.  
  3. Disconnect both ball joints from the steering knuckles.
  4.  
  5. Remove the halfshafts from the transaxle.
  6.  
  7. Remove the stabilizer bolt from the left control arm. Remove the left stabilizer-to-cradle clamp.
  8.  



Click image to see an enlarged view

Fig. Cradle assembly and mounts

  1. Remove the left engine and A/C splash shields. Remove the left No. 1 insulator cover and the wire harness cover.
  2.  



Click image to see an enlarged view

Fig. Transaxle-to-engine support bracket

  1. Remove the vacuum pump assembly from the left cradle and support. Detach the vehicle speed sensor connector.
  2.  
  3. Disconnect the right and left front engine and transaxle mount-to-cradle attachments. Remove the left No. 1 cradle insulator bolt and left cradle assembly.
  4.  



Click image to see an enlarged view

Fig. Flexplate splash shields

  1. Disconnect the oil cooler lines and bracket at the transaxle. Remove the transaxle-to-engine support bracket.
  2.  
  3. Remove the right rear mount-to-transaxle bracket and the left rear transaxle mount-to-transaxle attachments.
  4.  
  5. Remove the flexplate splash shields, then remove the torque converter-to-flexplate bolts.
  6.  



Click image to see an enlarged view

Fig. Torque converter-to-flexplate bolts

  1. Position a suitable jack under the transaxle.
  2.  
  3. Remove the transaxle-to-engine bolt from position 1.
  4.  
  5. Working through the right wheelwell, use a 3 foot extension and socket to remove the transaxle-to-engine bolt from position 6.
  6.  
  7. Remove the transaxle from the vehicle.
  8.  

To install:

  1. Position the transaxle in the vehicle and install the lower transaxle-to-engine bolts/studs. Tighten the bolts/studs to 55 ft. lbs. (75 Nm).
  2.  


NOTE
Studs must be installed in positions 2 and 3. Bolts must be installed in positions 1, 4, 5, and 6. Refer to the proper illustration for positions.

  1. Install the torque converter-to-flexplate bolts and tighten to 46 ft. lbs. (63 Nm). Install the flexplate splash shields.
  2.  
  3. Connect the oil cooler lines and bracket at the transaxle. Tighten the bracket mounting bolts to 40 ft. lbs. (55 Nm) and the oil cooler line fitting nuts to 15 ft. lbs. (21 Nm).
  4.  
  5. Install the right and left rear transaxle mount attachments. Tighten the mounting bracket-to-transaxle bolts to 40 ft. lbs. (55 Nm) and the nuts to 23 ft. lbs. (31 Nm).
  6.  
  7. Install the transaxle-to-engine support bracket and tighten the bolts to 37 ft. lbs. (50 Nm).
  8.  
  9. Install the cradle assembly, No. 1 insulator bolt, and the right and left front cradle-to-cradle attachments. Tighten the insulator bolt and cradle bolts to 74 ft. lbs. (100 Nm).
  10.  


NOTE
Before tightening the No. 1 insulator bolt, make sure the cradle and body are properly aligned, via the 10 mm locating holes in the body and cradle near the No. 1 insulator.

  1. Install the stabilizer bolt to the left control arm and the stabilizer cradle clamp.
  2.  
  3. Install the halfshafts.
  4.  
  5. Connect the lower ball joints to the steering knuckles.
  6.  
  7. Install the right and left front transaxle mount-to-cradle attachments. Tighten the nuts to 23 ft. lbs. (31 Nm).
  8.  
  9. Install the vacuum pump assembly to the left cradle.
  10.  
  11. Install the left engine and A/C splash shields and the No. 1 insulator cover.
  12.  
  13. Install the wire harness cover to the cradle. Attach the vehicle speed sensor connector.
  14.  
  15. Connect the vacuum line at the modulator.
  16.  
  17. Install the wheel and tire assemblies and lower the vehicle. Remove the engine support fixture.
  18.  
  19. Install the remaining transaxle-to-engine bolts and tighten to 55 ft. lbs. (75 Nm).
  20.  
  21. Attach the remaining electrical connectors. Connect the shift linkage at the transaxle and tighten the nuts and bolts to 18 ft. lbs. (24 Nm).
  22.  
  23. Install the exhaust crossover pipe.
  24.  
  25. Connect the throttle valve cable and install the cable and engine cooler line bracket.
  26.  
  27. Install the air cleaner and connect the negative battery cable.
  28.  
  29. Fill the transaxle with the proper type and quantity of fluid. Adjust the throttle valve cable and the shift linkage.
  30.  
  31. Road test the vehicle.
  32.  

4T80-E Transaxle
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the headlight housing upper filler panel and diagonal brace.
  4.  
  5. Remove the air cleaner assembly.
  6.  
  7. Disconnect the shift control cable and bracket at the transaxle.
  8.  
  9. Remove the torque struts.
  10.  
  11. Disconnect the oil cooler lines at the cooler and the oil sending line at the transaxle.
  12.  
  13. Remove the 2 upper transaxle-to-engine bolts.
  14.  



Click image to see an enlarged view

Fig. Transaxle-to-engine bolt locations-4T80-E

  1. Disconnect the power steering return hose at the auxiliary cooler. Plug the cooler and return hose to prevent leakage.
  2.  
  3. Support the engine with engine support fixture J-28467 or equivalent, as shown. Tighten the wing nuts several turns to take the weight of the powertrain off the mounts and frame.
  4.  



Click image to see an enlarged view

Fig. Engine support fixture-4.6L engine shown

  1. Raise and safely support the vehicle. Remove the front wheel and tire assemblies.
  2.  
  3. Remove the splash shields from both front wheelwells.
  4.  



Click image to see an enlarged view

Fig. Transaxle cooler lines and fittings-4T80-E

  1. Disconnect both front suspension position sensors from the lower control arms and position aside.
  2.  
  3. Remove both stabilizer links from the struts.
  4.  
  5. Remove the tie rod end cotter pins and nuts. Separate the tie rod ends from the steering knuckles.
  6.  
  7. Remove the lower ball joint cotter pins and nuts. Separate the lower ball joints from the steering knuckles.
  8.  
  9. Remove the halfshafts.
  10.  
  11. Remove the power steering filter at the cradle and the A/C splash shield from the frame.
  12.  
  13. Remove the ABS modulator from the bracket and support. Remove the engine oil pan-to-transaxle bracket.
  14.  



Click image to see an enlarged view

Fig. Torque converter cover and engine to transaxle bracket-4T80-E

  1. Remove the torque converter cover, then remove the torque converter-to-flexplate bolts. Prior to bolt removal, mark the torque converter position in relation to the flexplate so they can be reassembled in the same position.
  2.  



Click image to see an enlarged view

Fig. Torque converter-to-flexplate bolts-4T80-E transaxle

  1. Remove the powertrain mount nuts from the cradle.
  2.  



Click image to see an enlarged view

Fig. Left side transaxle mount and bracket-4T80-E

  1. Rotate the intermediate steering shaft until the steering gear stub shaft clamp bolt is accessible from the left wheelwell. Remove the clamp bolt and disconnect the intermediate steering shaft from the steering gear.
  2.  



Click image to see an enlarged view

Fig. Right side transaxle mount and brackets -4T80-E



Click image to see an enlarged view

Fig. Engine-to-transaxle bracket-4T80-E


CAUTION
If the intermediate steering shaft is not disconnected from the steering gear stub shaft, damage to the steering gear and/or intermediate shaft may result. This damage can cause loss of steering control that could result in personal injury.


WARNING
Do not turn the steering wheel or move the position of the steering gear once the intermediate steering shaft is disconnected, as this will lose the center of the air bag coil in the steering column. If the air bag coil loses its center, it may be damaged during vehicle operation.

  1. Remove the electrical harness and connector from the front of the cradle.
  2.  
  3. Support the rear of the cradle with a suitable jack, then remove the 4 rear cradle bolts.
  4.  
  5. Lower the jack a few inches to gain access to the power steering gear heat shield and return line fitting. Remove the heat shield and disconnect the return line. Plug the line and the opening in the gear to prevent fluid leakage.
  6.  
  7. Detach the power steering electrical connector.
  8.  
  9. Raise the jack and reinstall one rear cradle bolt on each side finger tight to support the cradle. Remove the jack.
  10.  
  11. Support the frame with a suitable jack and remove the 6 frame mount bolts. Lower the frame and/or raise the vehicle with the steering gear attached.
  12.  
  13. Label and detach the electrical connectors to the transaxle, vehicle speed sensor, and ground. Remove the transaxle harness from the transaxle clip.
  14.  
  15. Remove the fuel line bundle from the transaxle.
  16.  
  17. Remove the left and right transaxle mount and bracket from the transaxle.
  18.  
  19. Support the transaxle with a suitable jack.
  20.  
  21. Remove the engine-to-transaxle heat shield and bracket and the remaining transaxle-to-engine bolts. Lower the transaxle.
  22.  
  23. Remove the manual shaft linkage and neutral safety switch. Remove the vehicle speed sensor and oil return line.
  24.  

To install:

  1. Install the oil return line and the vehicle speed sensor.
  2.  
  3. Install the neutral safety switch and tighten the bolts to 106 inch lbs. (12 Nm).
  4.  
  5. Install the manual shaft linkage and tighten the manual shaft nut to 15 ft. lbs. (20 Nm).
  6.  
  7. Raise the transaxle into position and install the 2 lower transaxle-to-engine bolts. Tighten to 35 ft. lbs. (47 Nm).
  8.  
  9. Install the engine-to-transaxle bracket and heat shield. Tighten the bolts to 35 ft. lbs. (47 Nm).
  10.  
  11. Remove the transaxle jack.
  12.  
  13. Install the right and left transaxle bracket and mount to the transaxle. Tighten the bolts and nuts to 35 ft. lbs. (47 Nm).
  14.  
  15. Install the fuel line bundle to the transaxle.
  16.  
  17. Attach the electrical connectors to the transaxle, vehicle speed sensor, and ground. Install the transaxle harness to the transaxle clip.
  18.  
  19. Raise the frame and/or lower the vehicle while locating the engine and transaxle mount studs into the frame, harnesses at the cradle, and frame mount boltholes to the underbody.
  20.  
  21. Install 2 front and 2 rear cradle bolts finger-tight to support the cradle, then remove the cradle support.
  22.  
  23. Support the rear of the cradle with a suitable jack and remove the 2 rear cradle bolts.
  24.  
  25. Lower the jack a few inches to gain access to the power steering gear. Connect the hose at the steering gear and tighten the fitting to 20 ft. lbs. (27 Nm). Attach the power steering gear electrical connector and install the steering gear heat shield.
  26.  
  27. Raise the cradle with the jack. Install the 6 frame mount bolts beginning with the No. 2 mount bolt into the body, followed by the No. 1 mount bolt into the body, followed by the remaining frame mount bolts. Tighten the bolts to 74 ft. lbs. (100 Nm).
  28.  
  29. Install the electrical harness to the front of the cradle.
  30.  
  31. Connect the intermediate steering shaft to the steering gear and install the clamp bolt. Tighten the bolt to 35 ft. lbs. (47 Nm).
  32.  


WARNING
Do not turn the steering wheel or move the position of the steering gear once the intermediate steering shaft is disconnected, as this will lose the center of the air bag coil in the steering column. If the air bag coil loses its center, it may be damaged during vehicle operation.

  1. Install the left and right transaxle mount nuts and right engine mount nuts at the frame. Tighten the nuts to 35 ft. lbs. (47 Nm).
  2.  
  3. Align the flexplate and torque converter using the marks made during the removal procedure. Install the flexplate-to-converter bolts and tighten to 35 ft. lbs. (47 Nm).
  4.  
  5. Install the torque converter cover and tighten the bolts to 106 inch lbs. (12 Nm).
  6.  
  7. Install the engine oil pan-to-transaxle bracket and tighten the bolts to 35 ft. lbs. (47 Nm).
  8.  
  9. Install the ABS modulator to the bracket and install the A/C splash shield at the frame.
  10.  
  11. Install the halfshafts. Tighten the halfshaft nuts to 110 ft. lbs. (145 Nm).
  12.  
  13. Install the lower ball joints into the steering knuckles and install the nuts. Tighten the ball joint nuts to 84 inch lbs. (10 Nm), then an additional 120 degrees.
  14.  


NOTE
A minimum torque of 37 ft. lbs. (50 Nm) must be obtained when tightening the nuts. If the minimum torque is not obtained, inspect for stripped threads. If the threads are okay, replace the ball joint and knuckle.

  1. Install new cotter pins after the ball joint nuts have been torqued. If necessary, turn the nuts up to an additional 60° to allow for installation of the cotter pins. NEVER loosen the nut to allow for cotter pin installation.
  2.  
  3. Install the tie rod ends into the steering knuckles and install the nuts. Tighten the nuts to 7.5 ft. lbs. (10 Nm), then an additional 1 / 3 turn (2 flats).
  4.  


NOTE
A minimum torque of 33 ft. lbs. (45 Nm) must be obtained when tightening the nuts. If the minimum torque is not obtained, inspect for stripped threads. If the threads are okay, replace the tie rod end and knuckle.

  1. Install new cotter pins after the tie rod ends have been torqued. If necessary, align the slots in the nuts to the cotter pin holes by tightening the nuts. NEVER loosen the nut to allow for cotter pin installation.
  2.  
  3. Connect the stabilizer links to the struts and tighten the nuts to 49 ft. lbs. (65 Nm).
  4.  
  5. Install both front suspension position sensors to the lower control arms.
  6.  
  7. Install the power steering filter to the cradle and install the splash shields in the wheelwells.
  8.  
  9. Install the wheel and tire assemblies and lower the vehicle. Remove the engine support fixture.
  10.  
  11. Connect the power steering hose at the auxiliary cooler.
  12.  
  13. Install the remaining transaxle-to-engine bolts and tighten to 35 ft. lbs. (47 Nm).
  14.  
  15. Flush the transaxle oil cooler using flushing tool J-35944 and flushing solution J-35944-20. The transaxle oil cooler and lines should be flushed before the oil cooler lines are connected to the transaxle.
  16.  
  17. Connect the transaxle oil cooler lines to the transaxle. Start the fittings by hand and tighten them finger-tight, then tighten the fittings to 16 ft. lbs. (22 Nm).
  18.  
  19. Install the torque struts.
  20.  
  21. Adjust the neutral safety switch.
  22.  
  23. Install the shift control cable and bracket to the transaxle and tighten the bracket bolts to 106 inch lbs. (12 Nm). Adjust the shift control cable.
  24.  
  25. Install the air cleaner assembly. Install the headlight housing upper filler panel and diagonal brace.
  26.  
  27. Connect the negative battery cable.
  28.  
  29. Fill the transaxle with the proper type and quantity of transaxle fluid. Bleed the power steering system.
  30.  
  31. Check the front suspension alignment and adjust as necessary.
  32.  



Click image to see an enlarged view

Fig. When replacing the transaxle, this support should be replaced also. This one has deteriorated because of a fluid leak

ADJUSTMENTS



  1. The Powertrain Control Module (PCM) maintains 3 types of transaxle adapt parameters which are used to modify transaxle line pressure. The line pressure is modified to maintain shift quality regardless of wear or tolerance variations within the transaxle. Whenever the transaxle is replaced, the transaxle adapts must be reset as follows:
    1. Turn the ignition key ON . Enter the self-diagnostic system.
    2.  
    3. Select Powertrain Control Module (PCM) override PS13 (TP SENSOR LEARN).
    4.  
    5. Press the WARMER button. The Driver Information Center (DIC) should display 09, indicating that the Garage Shift Adapt value has been reset.
    6.  
    7. Select PCM override PS14 (TRAN ADAPT).
    8.  
    9. Press the COOLER button. The DIC should display 90, indicating the Upshift Adapt value has been reset.
    10.  
    11. Press the WARMER button. The DIC should display 09, indicating the Steady State Adapt value has been reset.
    12.  

  2.  
  3. The PCM maintains a value for transaxle oil life. This value indicates the percentage of oil life remaining and is calculated based on transaxle temperature and speed. When the vehicle is new, the transaxle oil life value is 100%. As the vehicle operates, the percentage will decrease. Whenever the transaxle is replaced, the transaxle oil life indicator should be reset to 100% as follows:
    1. Turn the ignition key ON , but leave the engine OFF .
    2.  
    3. Press and hold the OFF and REAR DEFOG buttons on the DIC until the message TRANSAXLE OIL LIFE RESET is displayed on the DIC.
    4.  

  4.  

Throttle Linkage
  1. After installation of the cable to the transaxle, engine bracket and cable actuating lever, check to make sure that the cable slider is in the `zero' or fully retracted position. If it is not, proceed as follows:
    1. Make sure the engine is OFF .
    2.  

  2.  



Click image to see an enlarged view

Fig. Throttle valve cable and linkage



Click image to see an enlarged view

Fig. Throttle valve cable adjuster

  1. Depress and hold down the metal readjust tab at the engine end of the TV cable.
  2.  
  3. Move the slider until it stops against the fitting.
  4.  
  5. Release the readjustment tab.
  6.  



Click image to see an enlarged view

Fig. Throttle valve cable at the throttle lever



Click image to see an enlarged view

Fig. Sticking throttle valve cable

  1. Rotate the throttle lever to its `full travel' position (wide-open throttle).
  2.  


NOTE
Adjustment of the TV cable must be made by rotating the throttle lever at the throttle body. Do not use the accelerator pedal to rotate the throttle lever.

  1. The slider must move (ratchet) toward the lever when the lever is rotated to its `full travel' position.
  2.  

 
label.common.footer.alt.autozoneLogo