For 1990-2009 cars only
Removal Procedure
- Remove the master cylinder from the vehicle. Refer to Master Cylinder Replacement .
- Remove the cover and diaphragm.
- Drain the brake fluid from the reservoir.
- Secure the master cylinder in a vise. Do not clamp the master cylinder body, secure only at the flange.
- Remove the reservoir body by pulling the body straight up and away from the cylinder body.
- Remove the seals from the grooves in the reservoir.
Installation Procedure
- Inspect the reservoir for cracks or deformation. If found, replace the reservoir.
- Clean the reservoir with denatured alcohol, or equivalent.
- Dry the reservoir with non-lubricated, filtered air.
- Lubricate the new seals and the outer surface area of the reservoir-to-housing barrels with Delco Supreme 11® (GM P/N 12377967) or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
- Install the lubricated seals. Make sure the seals are fully seated.
- Install the reservoir to the master cylinder body. Use your hand to press the reservoir straight down into the body.
- Install the diaphragm.
- Install the cover.
- Remove the master cylinder from the vice.
- Install the master cylinder to the vehicle. Refer to Master Cylinder Replacement .
