Pressure Regulator Valve Replacement. Buick Roadmaster 1996

For 1990-2009 cars

### Removal Procedure

1. Remove the oil pan. Refer to Automatic Transmission Fluid and Filter Replacement .
2. Compress the following parts with a small screwdriver:

• | The regulator valve (216) and spring (217)

• | The isolator spring (218)

• | The boost valve (219)

• | The boost valve sleeve (220)

3. Remove the ring (221).
4. Slowly release the tension.
5. Remove the following parts from the transmission oil pump cover bore:

• | The sleeve (220)

• | The boost valve (219)

• | The spring (218)

• | The spring (217) and regulator valve (216)

6. Inspect the pressure regulator valve.

### Installation Procedure

1. Install the following parts to the transmission oil pump cover bore:

• | The regulator valve (216)

• | The springs (217, 218)

• | The boost valve (219)

• | The sleeve (220)

2. Compress the springs with a small screwdriver.
3. Install the ring (221).
4. Install the oil pan. Refer to Automatic Transmission Fluid and Filter Replacement .