Excessive Brake Pedal Travel, Brake Pedal Feels Spongy

POSSIBLE SOURCE:

- Rear brakes out of adjustment.
- Adjust rear brakes.

- Front wheel bearing out of adjustment.
- Adjust front wheel bearings.

- Brake master cylinder or power brake booster dash unit mounting loose.
- Tighten nuts and bolts.

- Front or rear disc brake caliper attachment loose.
- Replace or tighten as required.

- Worn or damaged self-adjusters.
- Remove brake drum and check rear brake shoe and lining for proper adjustment. Replace brake shoe adjusting lever.

- Brake pedal or support improperly mounted.
- Repair or replace as necessary.

- Worn or damaged brake linings.
- Replace brake shoe and lining.

- Brake drum out-of-round or front disc brake rotors with excessive runout.
- Refinish or replace if wear exceeds limits.

- Worn or damaged 4 Wheel ABS accumulator valve.
- Refer to Antilock Brake System / Testing and Inspection / Rear Antilock Brakes.

- Worn or damaged RABS hydraulic control unit.
- Refer to Antilock Brake System / Testing and Inspection / 4 Wheel Antilock Brakes.

- Brake tubing improperly positioned.
- Check brake tubing for misposition near heat source. Fluid can boil and result in spongy pedal response.

- Low brake fluid level.
- Fill as required.

- Clogged brake master cylinder filler cap hole.
- Repair or replace brake master cylinder filler cap.

- Air in system.
- For spongy brake pedal, Go to Pinpoint Test F. F - Pedal Is Low or Feels Spongy

- For excessive brake pedal travel, Go to Pinpoint Test H. H - Excessive and/or Erratic Pedal Travel