Operation CHARM: Car repair manuals for everyone.

Excessive Pedal Effort

POSSIBLE CAUSE
1. Malfunctioning vacuum booster.
Correction - Check vacuum booster operation and repair, if necessary.

2. Partial system failure.
Correction - Check front and rear brake system for failure and repair. Also, check brake warning light. If a failed system is found, the light should indicate a failure.

3. Excessively worn lining.
Correction - Check and replace linings in sets.

4. Piston in caliper stuck or sluggish.
Correction - Remove caliper and rebuild.

5. Fading brakes due to incorrect lining.
Correction - Remove and replace with original equipment lining or equivalent.

6. Vacuum leak to vacuum booster.
Correction - Check for ruptured or loose hose.

7. Check direction of vacuum hose.
Correction - Correct vacuum hose direction.

8. Grease on the brake pads.
Correction - Replace or clean.