GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Jimmy - 4WD 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Master Cylinder Reservoir Replacement

Removal Procedure

    Object Number: 176838 Size: SH
  1. Remove the master cylinder from the vehicle. Refer to Master Cylinder Reservoir Replacement .
  2. Secure the master cylinder in a vise. Do not clamp the master cylinder body, secure only at the flange.
  3. Carefully remove the brake master cylinder reservoir retaining pins.

    4. Object Number: 230993 Size: SH
  4. Remove the reservoir from the master cylinder by pulling the reservoir straight up and away from the cylinder.
  5. Remove the seals from the master cylinder.

Installation Procedure

    Object Number: 230993 Size: SH
  1. Inspect the reservoir for cracks or deformation. If found, replace the reservoir.
  2. Clean the reservoir with denatured alcohol, or equivalent.
  3. Dry the reservoir with non-lubricated, filtered air.
  4. Lubricate the new seals and the outer surface area of the reservoir-to-housing barrels with Delco Supreme 11® GM P/N 12377967, Canadian P/N 992667or equivalent DOT--3 brake fluid from a clean, sealed brake fluid container.
  5. Install the lubricated seals, make sure they are fully seated.
  6. Install the reservoir to the master cylinder by pressing the reservoir straight down on the master cylinder until the pin holes are aligned.

    7. Object Number: 176838 Size: SH
  7. Carefully tap the reservoir retaining pins into place to secure the reservoir.
  8. Install the cover on the reservoir.
  9. Remove the master cylinder from the vice.
  10. Install the master cylinder. Refer to Master Cylinder Reservoir Replacement .