GM Service Manual Online
For 1990-2009 cars only
  1. Inspect the master cylinder for the following conditions:
  2. • Cracked casting
    • Brake fluid leaks around the master cylinder
    • Brake fluid leaks are indicated if there is one or more drops of fluid. A damp condition is not abnormal.
  3. Inspect the master cylinder for the following conditions:
  4. • Binding pedal linkage
    • Incorrect pushrod length
  5. Disassemble the master cylinder if the following conditions exist:
  6. • No brake pedal binding
    • Improper brake pedal travel
    • Refer to the instructions enclosed with the service repair kit.
  7. Inspect the master cylinder for swollen or elongated primary piston seal(s).