Brake Pedal Travel
WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
- With ignition OFF and brakes cool, apply brakes 3-5 times or until brake pedal becomes firm, in order to deplete the brake booster power reserve.
- Install the Brake Pedal Effort Gauge (J-28662) to brake pedal.
- Measure and record distance from brake pedal to the rim of steering wheel. Note the points of measurement. See Fig 1.
- Apply and maintain the brakes with 100 lbs. (445 N) of force to the brake pedal as indicated on the brake pedal effort gauge.
- While maintaining 100 lbs. (445 N) of force to brake pedal, measure and record distance from the same point on brake pedal to the same point on the rim of the steering wheel.
- Release 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 brake applications.
- Subtract initial measurement (unapplied) from the averaged (applied) measurement to obtain the brake pedal travel distance. See BRAKE PEDAL TRAVEL SPECIFICATIONS table.
BRAKE PEDAL TRAVEL SPECIFICATIONS
| Application | In. (mm) |
|---|---|
| Vacuum Assist Brakes | 2.56 (65) |
| Hydraulic Assist Brakes | 3.54 (90) |