WHEN BRAKES ARE APPLIED ON ROUGH SURFACE, ABS DOES NOT WORK. TT ABS LOCKS UP, CONSUMER HAS DISCONNECTED THE ABS.*JB
1996
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC
REPEATED PROBLEMS WITH BRAKE FAILURE FOLLOWING VEHICLE BEING PARKED IN WET WEATHER. SOMETIMES THERE IS NEAR TOTAL LOSS OF BRAKING CAPABILITY, SOMETIMES SEVERE VEHICLE "BUCKING" WHILE TRYING TO STOP. SYMPTOMS DIMINISH AFTER SEVERAL BLOCKS OF DRIVING, RE-APPEAR AFTER VEHICLE IS PARKED FOR A FEW HOURS. DEALER EXAMINED SHORTLY AFTER WE PURCHASED VEHICLE (USED) AND FOUND NO PROBLEM. HAVE TALKED TO OTHER OWNERS OF SUBURBANS AND GMC/CHEVY LIGHT TRUCKS OF SIMILAR VINTAGE AND HAVE FOUND SIMILAR COMPLAINTS. RECENT EPISODE INVOLVED INABILITY TO STOP AND VEHICLE CONTINUED CLEAR THROUGH INTERSECTION. I SUSPECT REAR BRAKE LININGS/DRUMS RUST AND TEND TO LOCK/RELEASE WHICH SEEMS TO CONFUSE THE ABS SYSTEM UNTIL LININGS WEAR CLEAN AGAIN. VEHICLE IS A HAZARD TO OPERATE FOR FIRST FEW BLOCKS IN WET WEATHER. *AK