Component Test- Brake Master Cylinder - Compensator Port
- Inspect the master cylinder.
- REFER to: Jacking And Lifting - Overview .
- Apply and release the brakes.
- With the brakes released, attempt to rotate each wheel and check for any brake drag.
- If an excessive amount of brake drag exists at multiple wheels, continue to Step 5.
- If an excessive amount of brake drag exists at only one wheel, it indicates a possible seized brake caliper, brake wheel cylinder or parking brake component. Repair or install new components as necessary.
- Check the brake stoplamp switch and the brake pedal free play to verify the brake pedal is not partially applied.
- Loosen the brake master cylinder nuts and position the brake master cylinder away from the brake booster.
- With the brakes released, attempt to rotate each wheel and check for any brake drag.
- If the brake drag is no longer present, install a new brake booster.REFER to: Brake Booster .
- If the brake drag is still present, install a new master cylinder.REFER to: Brake Master Cylinder .