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Home >> Buick >> 1999 >> Riviera V6-3.8L SC VIN 1 >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Band Apply Servo >> Service and Repair >> Forward Servo Replacement

Forward Servo Replacement

Removal Procedure

^ Tools Required
- J28467-A Engine Support Fixture
- J28467-90 Engine Support Adapter
- J36462 Support Adapter Leg Set

1. Disconnect the battery ground (negative) cable.
2. Remove the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement in Powertrain Management.
3. Install the J28467-A
4. Install the J28467-90
5. Install the J36462
6. Raise and support the vehicle. Refer to Vehicle Lifting.
7. Remove the left front wheel. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment.
8. Remove the left engine splash shield. Refer to Wheelhouse Panel Replacement in Body and Frame.
9. Remove the stabilizer shaft brackets from the lower control arms. Refer to Stabilizer Shaft Link Replacement in Steering and Suspension.
10. Remove the left tie rod end from the steering knuckle. Refer to Tie Rod End Replacement -Outer-Off Vehicle in Steering and Suspension.
11. Remove the wheel speed sensor harness connector.
12. Remove the left lower ball joint from the left lower control arm. Refer to Lower Ball Joint Replacement in Steering and Suspension.
13. Disconnect the left drive axle from the transaxle. Refer to Wheel Drive Shafts Replacement in Drive Axles, Bearings and Joints.
14. Secure the drive axle to the steering knuckle/strut.
15. Remove the pinch bolt at the intermediate steering shaft. Refer to Intermediate Steering Shaft Replacement in Steering and Suspension.
16. Remove the intermediate shaft from the steering gear. Refer to Intermediate Steering Shaft Replacement in Steering and Suspension.
17. Disconnect the three-way catalytic converter pipe to the right (rear) exhaust manifold. Refer to Catalytic Converter Replacement in Exhaust System.
18. Support the right side of the frame with jackstands.
19. Support the left side of the frame with jackstands.
20. Remove the transaxle mount bracket. Refer to AT Mount Replacement (Transaxle Mount).
21. Remove the transaxle mount. Refer to AT Mount Replacement (Transaxle Mount).
22. Loosen the engine mount lower nuts. Refer to Engine Mount Replacement in Engine.
23. Loosen the right side frame to body bolts. Refer to Frame Removal in Body and Frame.
24. Remove the left side frame to body bolts. Refer to Frame Removal in Body and Frame.
25. Adjust the jackstand to the lower left side of the frame.
26. Position the drain pan under the transaxle.
27. Remove the wiring harness connector.





28. Remove the case side cover bolts (56-58).





29. Remove the case side cover pan (53).
30. Remove the case side cover gasket (54).
31. Clean the case.
32. Clean the side cover gasket surfaces.

Installation Procedure

^ Tools Required
^ Engine Support Fixture
^ Engine Support Adapter
^ Engine Support Adapter Leg Set





1. Install the case side cover gasket (54).
2. Install the case side cover pan (53).

Notice: Refer to in Service Precautions.





3. Install the case side cover bolts (56-58).
^ Tighten the case side cover bolts (56-58) to 25 Nm (18 ft. lbs.).
4. Remove the drain pan from under the transaxle.
5. Install the wiring harness connector.
6. Adjust the jackstand to raise the left side of the frame.
7. Install the left side frame to body bolts. Refer to Frame Removal in Body and Frame.
8. Install the right side frame to body bolts. Refer to Frame Removal in Body and Frame.
9. Install the engine mount lower nuts. Refer to Engine Mount Replacement in Engine.
10. Install the transaxle mount. Refer to AT Mount Replacement (Transaxle Mount).
11. Install the transaxle mount bracket. Refer to AT Mount Replacement (Transaxle Mount).
12. Remove the jackstand support from the right side of the frame.
13. Remove the jackstand support from the left side of the frame.
14. Connect the three-way catalytic converter pipe to the right (rear) exhaust manifold. Refer to Catalytic Converter Replacement in Exhaust System.
15. Install the intermediate shaft to the steering gear. Refer to Steering and Suspension.
16. Install the pinch bolt at the intermediate steering shaft. Refer to Steering and Suspension.
17. Install the left drive axle to the transaxle. Refer to Wheel Drive Shafts Replacement in Drive Axles, Bearings and Joints.
18. Install the left lower ball joint to the left lower control arm. Refer to Lower Ball Joint Replacement in Steering and Suspension.
19. Install the wheel speed sensor harness connector.
20. Install the left tie rod end to the steering knuckle. Refer to Tie Rod End Replacement-Outer-Off Vehicle in Steering and Suspension.
21. Install the stabilizer shaft brackets to the lower control arms. Refer to Stabilizer Shaft Link Replacement in Steering and Suspension.
22. Install the left engine splash shield. Refer to Wheelhouse Panel Replacement in Body and Frame.
23. Install the left front wheel. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment.
24. Lower the vehicle.
25. Remove the J28467-A Engine Support Fixture.
26. Remove the J28467-90 engine Support Adapter.
27. Remove the J36462 Support Adapter Leg Set.
28. Remove the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement in Powertrain Management.
29. Connect the battery ground (negative) cable.
30. Adjust the fluid level. Refer to Fluid Capacity Specifications.
31. Inspect for proper completion of the repairs.
32. Inspect for fluid leaks.
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