Brake Pedal Travel Measurement And Inspection
WARNING: This page is about a different car, the 2003 Buick Regal, 2003 Buick Century, 2002 Buick Regal, and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Numbers in parentheses are referencing distances in illustration. See Fig 1
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- With the 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 Gage (J-28662) to the brake pedal.
- Measure and record the distance (1) 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) of force to the brake pedal, as indicated on the Brake Pedal Effort Gage.
- While maintaining 100 lbs (445 N) of force to the brake pedal, measure and record the distance (2) from the same point on the brake pedal to the same point on the rim of the steering wheel. See Fig 1 .
- 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, unapplied (1), from the averaged, applied measurement (2) to obtain the brake pedal travel distance. See PEDAL TRAVEL DISTANCE
table.PEDAL TRAVEL DISTANCE
Application In (mm) Maximum Brake Pedal Travel (1) 2.91 (74) (1) Measured with the ignition off, brake booster power assist depleted and the brakes cool.