Brake Pedal Travel Measurement & Inspection
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
- With ignition off and the brakes cool, apply the brakes 3-5 times, or until the brake pedal becomes firm, 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; note the points of measurement. See Fig 1.
- Apply and maintain the brakes with 100 lbs (445 N.m) of force to the brake pedal, as indicated on the gauge.
- While maintaining 100 lbs (445 N.m) 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.
- Release the brakes and repeat steps 4 and 5 to obtain a second measurement. After obtaining a second measurement, proceed to next step.
- Average the first and second measurements recorded during the 2 applies of the brakes.
- Subtract the initial measurement, unappiled, from the averaged, applied measurement to obtain the brake pedal travel distance. Maximum brake pedal travel is 2.5" (64 mm) measured with ignition off, brake booster power assist depleted, and the brakes cool.