Tools Required

J 28662 Brake Pedal Effort Gauge

Test the brake pedal travel at frequent intervals. Brake pedal travel is the distance the brake pedal moves toward the floor from a fully released position. Perform this test under the following conditions:

1. With the engine off, press and release the brake pedal. Do this 5 times in order to release the vacuum from the vacuum booster.



2. Measure the distance (1) from the bottom of the steering wheel to the brake pedal pad center with the brake pedal released.
3. Using the J 28662 , apply approximately 400 N (100 lb) on the brake pedal.
4. Measure the distance (2) from the bottom of the steering wheel to the brake pedal pad center.
5. Subtract the first measurement (1) from the second measurement (2).
6. Compare the difference with the specifications below. If the brake pedal travel exceeds specifications, refer to Brake System Diagnosis .