Brakes - Low Pedal Perception
NUMBER: 06-29-00DATE: 05/10/00
APPLICABILITY:
All 2000MY Vehicles
SUBJECT:
Low Brake Pedal Perception
It has come to our attention that some owners have complained that their brake pedal travel is excessive or that the pedal stroke is too low. However, upon inspection, the pedal travel was found to be within specifications. But, if the owner still persists in making this complaint, there is an adjustment procedure that you can perform that will give the perception of a shorter brake pedal stroke or higher pedal.
Note:
If the customer's complaint involves braking PERFORMANCE, this bulletin DOES NOT apply.
PROCEDURE
1. VERIFY BRAKE PEDAL STROKE
Check the brake pedal stroke outlined in the Bleeding Procedure located in Book 6, Section 4-4, of the 2000MY Service Manual, using the special tool # S0A636500 - Brake Effort Gauge.
2. MEASURE DISTANCE
Position a straight edge on the top of the brake pedal rubber (making sure to be in the center of the brake pedal), while holding the straight edge over the top of the gas pedal. Measure the difference in height between the gas and the brake pedals (the factory specification is between 24 mm to 28 mm). This measurement is taken to be sure the procedure is done correctly.
3. ADJUSTMENT PROCEDURE
Loosen the lock nut on the brake light switch and loosen the switch so that it is not touching the brake pedal lever. Note: This operation must be completed to prevent the Master Cylinder from being applied.
4. ADJUSTING THE BRAKE PEDAL BOOSTER ROD
Loosen the lock nut at the brake pedal booster rod and turn the booster rod so that the brake pedal rises. Turn the rod until the measurement between the brake pedal and the gas pedal reaches 40 mm. Note: This is a maximum measurement and must not be exceeded! Secure the lock nut on the brake pedal booster rod. Turn the brake light switch back in until the measurement between the case of the switch is 0.3 mm, this is needed so there is free play in the brake pedal and so the brakes are not being applied without your foot being on the pedal.
This operation does not change the brake pedal stroke or brake performance. It will only give the operator the perception that the brake pedal is operating more efficiently.
For 2000MY vehicles within the adjustment warranty period, this repair may be claimed using the table shown.
DISCLAIMER