Brake Pedal Travel Measurement & Inspection
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- With the ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal effort increases significantly, in order to deplete the brake booster power reserve.
- Install the Brake Pedal Effort Gauge (J-28662) to the brake pedal.
- Measure and record the distance from the brake pedal to the rim of the steering wheel (measurement "A"). See Fig 1.
- Apply and maintain the brakes with 70 lbs. (310 N) of force to the brake pedal, as indicated on the Brake Pedal Effort Gauge.
- While maintaining 70 lbs. (310 N) of force to the brake pedal, measure and record the distance from the same point on the brake pedal to the same point on the rim of the steering wheel (measurement "B"). See Fig 1.
- Release the brakes and repeat steps 4 and 5 to obtain a second measurement. After obtaining a second measurement, go to next step.
- Average the first and second measurements recorded during the 2 applies of the brakes.
- Subtract the initial measurement, unapplied (measurement "A"), from the averaged, applied measurement (measurement "B") to obtain the brake pedal travel distance.
- Measure brake pedal travel with the ignition OFF, brake booster power assist depleted, and the brakes cool. Maximum brake pedal travel should be 2.75" (70 mm). Adjust brake pedal travel as necessary.