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Brake Pedal Travel And Measurement

  1. 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.
  2. Install the Brake Pedal Effort Gage (J-28662) to the brake pedal.
  3. Measure and record the distance from the brake pedal to the rim of the steering wheel. Note the points of measurement.
  4. Apply and maintain the brakes with 66 lbs. (294 N) of force to the brake pedal, as indicated on the Brake Pedal Effort Gage.
  5. While maintaining 66 lob. (294 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.
  6. Release the brakes and repeat steps  4 and  5 to obtain a second measurement. After obtaining a second measurement, go to next step.
  7. Average the first and second measurements recorded during the 2 applies of the brakes.
  8. Subtract the initial measurement, unapplied, from the averaged, applied measurement to obtain the brake pedal travel distance specification. See BRAKE PEDAL TRAVEL DISTANCE  table.
    BRAKE PEDAL TRAVEL DISTANCE

    Application Requirements In. (mm)
    Brake Pedal Travel Measured With Ignition OFF, Brake Booster Power Assist Depleted, And The Brakes Cool. 2.18-3.36 (55-85)
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