Brakes - Premature Brake Wear

Number: 86-108
Section: 5
Date: July 1986
Subject: PREMATURE BRAKE WEAR


Model and Year: ALL MODELS
TO: ALL CHEVROLET DEALERS


Whenever a condition of the brake remaining on with foot off the brake is encountered, an initial check should be made to insure that this condition is not the result of a misadjusted cruise control cutoff switch or brake light switch. These switches which are mounted at the brake pedal could allow for partial brake engagement. To check for this condition, pull the brake pedal fully rear-ward against pedal stop. If an audible "click" can be heard, the switch is out of adjustment and may be the cause of the partial brake engagement. After audible "clicks" have stopped, the switch will be properly adjusted.

Note: A maximum rearward pedal load of 20-25 lbs is to be used on all 1986 Caprice wagons equipped with the powermaster brake system to prevent overadjustment of switches.