Control and Shift Solenoids Replacement. Buick Roadmaster 1996

For 1990-2009 cars

### Removal Procedure

1. Remove the oil pan and the oil filter. Refer to Automatic Transmission Fluid and Filter Replacement .
2. Remove the accumulator cover bolts.
3. Remove the 1-2 accumulator cover.
4. Remove the piston.
5. Remove the springs.
6. Disconnect the component electrical connectors.
7. Remove the pressure control solenoid retainer bolt/screw.
8. Remove the pressure control solenoid retainer.
9. Remove the pressure control solenoid.
10. Remove the shift solenoid retainers.
11. Remove the shift solenoids.
12. Remove the 3-2 control solenoid retainer.
13. Remove the control solenoid.

### Installation Procedure

1. Install the 3-2 control solenoid.
2. Install the 3-2 control solenoid retainer.
3. Install the shift solenoids.
4. Install the shift solenoid retainers.
5. Install the pressure control solenoid.
6. Install the pressure control solenoid retainer.
7. Install the pressure control solenoid retainer bolt/screw.

Position the pressure control solenoid with the electrical tabs facing outboard.

8. Connect the component electrical connectors.
9. Install the 1-2 accumulator piston to the accumulator cover.

Replace piston seal.

The piston legs must face toward the case when installed.

10. Install the 1-2 accumulator springs into the piston.
11. Install the 1-2 accumulator cover.
12. Install the 1-2 accumulator cover bolts.

Tighten
Tighten the bolts to 11 N·m (97 lb in).

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.

13. Install the oil pan and the oil filter. Refer to Automatic Transmission Fluid and Filter Replacement .