GM Service Manual Online
For 1990-2009 cars only
  1. Start the engine.

  2. Object Number: 176214  Size: SH
  3. Press the brake pedal (1) several times.
  4. Hold the brake pedal with approximately 30 kg (66 lbs) of pressure.
  5. Measure the brake pedal-to-floor clearance. If the clearance is less than 60 mm (2.36 in), perform the following procedures:
  6. • Inspect the drum brake linings. Refer to Brake Drum Inspection in Drum Brakes.
    • Bleed the brakes. Refer to Hydraulic Brake System Bleeding .
    • Inspect the vacuum booster pushrod clevis length. Refer to Power Vacuum Brake Booster Replacement .