Service brakes, hydraulic: power assistRecall 92V-127 · Chevrolet and GMC vehicles
GENERAL MOTORS CORP. recall 92V-127 covers 246 Chevrolet and GMC vehicles for a service brakes, hydraulic: power assist problem, reported to NHTSA on September 3, 1992.
Source: NHTSA recall 92V127000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE BRAKE PEDAL ASSEMBLY HAS A PUSHROD PIN THAT IS TOO SMALL AND IT IS INSTALLED IN THE WRONG POSITION, CAUSING AN INCREASED BRAKE PEDAL RATIO AND A DECREASED MASTER CYLINDER STROKE.
The risk
THE REDUCED MASTER CYLINDER STROKE RESULTS IN FAILURE TOMEET THE PARTIAL SYSTEM FAILURE REQUIREMENTS OF FMVSS 105, "HYDRAULIC BRAKESYSTEMS". A FURTHER REDUCTION IN BRAKING ABILITY AT A TIME WHEN PARTIAL SYSTEMFAILURE HAS OCCURRED COULD RESULT IN A VEHICLE CRASH.
The fix
REPLACE THE BRAKE ASSEMBLY.
SYSTEM: BRAKES: BRAKE PEDAL ASSEMBLY; FMVSS 105.VEHICLE DESCRIPTION: VANS EQUIPPED WITH VACUUM POWER BRAKES.NOTE: FMVSS 105 REQUIRES THAT HYDRAULIC BRAKE SYSTEMS HAVE AN EMERGENCY FEATUREWHICH STOPS THE VEHICLE UNDER SPECIFIED CONDITIONS. ALL HYDRAULIC BRAKE SYSTEMSARE DESIGNED WITH A SPLIT SYSTEM. EACH SPLIT WORKS INDEPENDENTLY FROM THE OTHER.THE PARTIAL SYSTEM FAILURE TEST OF THE FMVSS IS PERFORMED WITH ONE OF THE SPLITSYSTEMS INOPERATIVE.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from February 1, 1992 to February 1, 1992. Not every vehicle in these model years is included; check by VIN.