Control Valve Body Cover Replacement. Buick GL7 (Export) 2000

For 1990-2009 cars

### Removal Procedure

1. Remove the throttle body air inlet duct.
2. Install the engine support fixture. Refer to Engine Support Fixture
3. Remove the engine mount struts. Refer to Engine Mount Strut Replacement
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
5. Remove the left front tire and wheel. Refer to Tire and Wheel Removal and Installation
6. Remove the left engine splash shield. Refer to Engine Splash Shield Replacement
7. Remove the stabilizer shaft links from the lower control arms. Refer to Stabilizer Shaft Link Replacement
8. Remove the left tie rod end from the steering knuckle. Refer to Rack and Pinion Outer Tie Rod End Replacement
9. Remove the wheel speed sensor harness connector (2).
10. Remove the left lower ball joint from the left steering knuckle. Refer to Lower Control Arm Ball Joint Replacement
11. Disconnect the left drive axle from the transaxle. Refer to Wheel Drive Shaft Replacement
12. Reposition and secure the drive axle.
13. Remove the intermediate shaft from the steering gear. Refer to Lower/Upper Intermediate Steering Shaft Replacement
14. Disconnect the catalytic converter pipe from the right (rear) exhaust manifold. Refer to Catalytic Converter Replacement
15. Support the right side of the frame with a utility stand.
16. Support the left side of the frame with a utility stand.
17. Remove the transaxle mount bracket. Refer to Transmission Mount Bracket Replacement
18. Remove the transaxle mount. Refer to Transmission Mount Replacement
19. Loosen the engine mount lower nuts. Refer to Engine Mount Replacement
20. Loosen the right side frame bolts. Refer to Frame Replacement
21. Remove the left side frame bolts. Refer to Frame Replacement
22. Use the utility stand in order to lower left side of the frame.
23. Position the drain pan under the transaxle.
24. Disconnect the wiring harness connectors.
25. Remove the case side cover bolts (56-58).
26. Remove the case side cover pan (53).
27. Remove the case side cover gasket (54).
28. Remove the case side cover inner gasket (59).
29. Inspect the case side cover (53) for the following conditions:

• | Damaged or porous gasket sealing surfaces

• | Damaged or porous casting surfaces

• | Damaged or stripped bolt holes

30. Inspect the case side cover gasket (54) and case side cover inner gasket (59) for damage. The gaskets are reusable if they are NOT damaged.
31. Clean the case side cover.
32. Clean the case side cover gasket surfaces.

### Installation Procedure

1. Install the case side cover inner gasket (59).
2. Install the case side cover gasket (54).
3. Install the case side cover pan (53).

Notice: 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.

4. Install the case side cover bolts (56-58).

Tighten
Tighten the case side cover bolts (56-58) to 25 N·m (18 lb ft).

5. Remove the drain pan from under the transaxle.
6. Connect the wiring harness connectors.
7. Use the utility stand in order to raise the left side of the frame.
8. Install the NEW left side frame bolts. Refer to Frame Replacement
9. Install the NEW right side frame bolts. Refer to Frame Replacement
10. Install the engine mount lower nuts. Refer to Engine Mount Replacement
11. Install the transaxle mount. Refer to Transmission Mount Replacement
12. Install the transaxle mount bracket. Refer to Transmission Mount Bracket Replacement
13. Remove the utility stand support from the right side of the frame.
14. Remove the utility stand support from the left side of the frame.
15. Connect the catalytic converter pipe to the right (rear) exhaust manifold. Refer to Catalytic Converter Replacement
16. Install the intermediate shaft to the steering gear. Refer to Lower/Upper Intermediate Steering Shaft Replacement
17. Install the left drive axle to the transaxle. Refer to Wheel Drive Shaft Replacement
18. Install the left lower ball joint to the left steering knuckle. Refer to Lower Control Arm Ball Joint Replacement
19. Install the wheel speed sensor harness connector (2).
20. Install the left tie rod end to the steering knuckle. Refer to Rack and Pinion Outer Tie Rod End Replacement
21. Install the stabilizer shaft links to the lower control arms. Refer to Stabilizer Shaft Link Replacement
22. Install the left engine splash shield. Refer to Engine Splash Shield Replacement
23. Install the left front tire and wheel. Refer to Tire and Wheel Removal and Installation
24. Lower the vehicle.
25. Install the engine mount struts. Refer to Engine Mount Strut Replacement
26. Remove the engine support fixture. Refer to Engine Support Fixture
27. Remove the throttle body air inlet duct.
28. Adjust the fluid level. Refer to the following information.

• | Transmission Fluid Check

• | Fluid and Lubricant Recommendations

• | Approximate Fluid Capacities

29. Inspect for proper completion of the repairs.
30. Inspect for fluid leaks.