Buick Regal: Front Wheel Drive Shaft Seal Replacement - Left Side

Special Tools

• DT-446 Seal Installer
• EN-45000 Seal Remover

Equivalent regional tools: Refer to Special Tools

Removal Procedure

1. Raise and support the vehicle.

2. Front Wheel Drive Half Shaft- Left Side - Remove - Refer to Front Wheel Drive Half Shaft Replacement - Left Side.

3.

Left Front Wheel Drive Shaft Oil Seal (1) - Remove and DISCARD - Use the special tool: EN-45000 remover (2).

Installation Procedure

1.

Left Front Wheel Drive Shaft Oil Seal (1) - Install NEW - Use the special tool: DT-446 Installer (2).

2. Front Wheel Drive Half Shaft- Left Side - Install - Refer to Front Wheel Drive Half Shaft Replacement - Left Side.

3. Lower the vehicle.

CONTROL VALVE BODY COVER REPLACEMENT

Special Tools

EN-37228 Separating Tool

Equivalent regional tools: Refer to Special Tools

Removal Procedure

1. Raise and support the vehicle. Lifting and Jacking the Vehicle.

2. Drain the transmission fluid. Transmission Fluid Drain and Fill.

3. Front Compartment Air Deflector - Remove Front Compartment Air Deflector Replacement.

4.

Transmission Fluid Cooler Pipe Nut (1) - Remove.

5. Transmission Fluid Cooler Inlet and Outlet Pipe (2) @Transmission - Disconnect.

6. Transmission Fluid Cooler Inlet and Outlet Pipe - Position aside.

7.

Control Valve Body Cover Bolt (1) - Remove[13x].

8. Slide the EN-37228 separating tool (2) around the perimeter of the control valve body cover to break the sealant.

9. Control Valve Body Cover (3) - Remove.

Installation Procedure

1. Clean all sealing surfaces.

2. Apply a bead of sealant to the perimeter of the sealing surface on the transmission case: Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct type of sealant.

3. Control Valve Body Cover (2) - Install.

Fig. 1: Automatic Transmission Valve Body Bolts Tightening Sequence

4. Control Valve Body Cover Bolt (1) - Install and tighten[13x]13N.m (115 lb in) - Tighten in the sequence shown.

5.

Transmission Fluid Cooler Inlet and Outlet Pipe (2) - Reposition.

6. Transmission Fluid Cooler Inlet and Outlet Pipe@Transmission - Connect.

7. Transmission Fluid Cooler Pipe Nut (1) - Install and tighten10N.m (89 lb in).

8. Front Compartment Air Deflector - Install Front Compartment Air Deflector Replacement.

9. Lower the vehicle.

10. Fill the transmission to the proper level with NEW transmission fluid. Transmission Fluid Drain and Fill.

11. Reset the learned values of the transmission control module. Learned Values Reset.

CONTROL VALVE BODY REPLACEMENT

Removal Procedure

1. Transmission Control Module - Remove - Refer to Transmission Control Module Replacement.

2. Drain the transmission fluid. Transmission Fluid Drain and Fill.

3. Control Valve Body Cover - Remove - Refer to Control Valve Body Cover Replacement.

NOTE: Note the position and color of each electrical connector.

4. Wiring Harness Wire - Remove - Refer to Wiring Harness Wire Replacement.

5.

NOTE: The control valve body bolts have different lengths. Note the position of every bolt.

Control Valve Body Bolt (2, 3, 4) - Remove[8x]

• (2) = M6 x 31 [2x]
• (3) = M6 x 51 [1x]
• (4) = M6 x 21 [5x]

6. Control Valve Body (1) - Remove.

Installation Procedure

1. Control Valve Body (1) - Install.

Fig. 2: Automatic Transmission Valve Body Control Unit Bolts Tightening Sequence

Control Valve Body (1) - Install.

2. Control Valve Body Bolt (2, 3, 4) - Install and tighten[8x]10N.m (89 lb in) - Tighten the bolts in the sequence shown.

NOTE: The control valve body bolts have different lengths. Note the position of every bolt.

• (2) = M6 x 31 [2x]
• (3) = M6 x 51 [1x]
• (4) = M6 x 21 [5x]

3. Wiring Harness Wire - Install - Refer to Wiring Harness Wire Replacement.

4. Control Valve Body Cover - Install - Refer to Control Valve Body Cover Replacement.

5. Transmission Control Module - Install - Refer to Transmission Control Module Replacement.

6. Fill the transmission to the proper level with NEW transmission fluid. Transmission Fluid Drain and Fill.

7. Reset the learned values of the transmission control module. Learned Values Reset.

8. Learn the gear selector neutral position. Gear Selector -N- Position Learn.

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