SEVERE CORROSION DUE TO ROAD SALT AT THE JOINT OF THE STAMPED STEEL CENTER SECTION AND THE CAST OUTER SECTION CAN CAUSE THE SECTIONS TO SEPARATE.
Consequence & remedy
Consequence: SEPARATION OF THE ROTOR SECTIONS CAN CAUSE LOSS OFBRAKING ABILITY IN THE AFFECTED WHEEL. THIS COULD RESULT IN INCREASED STOPPINGDISTANCE AND/OR LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
Remedy: REPLACE THE FRONT BRAKE ROTORS WITH NEW ROTORS WITH A CORROSION PROTECTION COATING. HOWEVER, IF REPLACEMENT OF BRAKE LININGS ARE NECESSARY, IT WILL BE DONE AT OWNER'S EXPENSE SINCE BRAKE LININGS ARE NORMAL MAINTENANCE ITEMS.
ONE OR BOTH OF OUTER TIE ROD NUTS MAY BE LOOSE AND NOT CRIMPED.
Consequence & remedy
Consequence: LOSS OF ONE OR BOTH NUTS COULD LEAD TO TIE RODDISENGAGING FROM STEERING KNUCKLE RESULTING IN POSSIBLE LOSS OF STEERINGCONTROL AND POSSIBLY A CRASH.
Remedy: REPLACE TIE ROD AND KNUCKLE AND SET TOE-IN.
INCORRECT FRONT SHOCK ABSORBER UPPER AND LOWER NUTS COULD LOOSEN.
Consequence & remedy
Consequence: SHOCK ABSORBER COULD DETACH AND COME IN CONTACT WITHFRONT BRAKE HOSE; THIS CONTACT COULD RESULT IN A LEAK IN THE HOSE AND LOSS OFFRONT BRAKES.
Remedy: REPLACE FREE SPINNING NUTS WITH TORQUE NUTS.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1
PE88019 · Rear Brk Lights Stay On
Opened Jan 19, 1988 · Closed Mar 31, 1988
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
SUMMARY OF INFORMATION FROM MANUFACTURER:ON SOME 1988 C/K MODEL TRUCKSTHE BRAKE LIGHTS HAVE BEEN FOUND TO STAY ON AFTER THE BRAKE PEDAL HAS BEENRELEASED.IN A MAJORITY OF CASES, THE STOPLAMP SWITCH BEING MISADJUSTEDHAS BEEN THE CAUSE.OTHER POSSIBILITIES INCLUDE (A) BINDING AT THE EYELET OF THE BRAKE BOOSTER ROD AND ITS ATTACHMENT PIN AND (B) PEDAL MOUNTINGBUSHINGS NOT BEING PROPERLY LUBRICATED.GM BELIEVES THAT IF THE VEHICLEIS EITHER ACCELERATING OR TRAVELING AT A CONSTANT SPEED, AND THE STOP LAMPSREMAIN ON, A FOLLOWING DRIVER WOULD LIKELY FOLLOW AT A GREATER DISTANCEBECAUSE OF UNCERTAINTY OF THE ACTIONS OF THE VEHICLE IN FRONT OF HIM.GMCONCLUDES THAT THIS IS TRUE BECAUSE THERE ARE NO REPORTED ACCIDENTS WHEREIT IS ALLEGED THE BRAKE LIGHTS STAYED ON.TO THE CONTRARY, BRAKE LIGHTSWHICH ARE ALWAYS ON APPEAR ARE INDISTINGUISHABLE FROM NORMAL TAILIGHTOPERATION AND THEREFORE FAIL TO SIGNAL BRAKING/DECELERATION WHICH IS THEONLY FUNCTION OF THE BRAKE LIGHTS.APPARENT INFANT MORTALITY SUPPORTS THEPOSITION THAT NO DEFECT TREND IS DEVELOPING.ALTHOUGH THE ALLEGED DEFECTMAY OCCUR AT ANY GIVEN TIME (IT DOES HOWEVER APPEAR TO OCCUR AT ANY GIVENTIME EARLY IN THE LIFE OF THE VEHICLE), ONCE THE BRAKE LIGHTS ARE STUCK INTHE ON POSITION, THE LIGHTS REMAIN ON UNTIL THE BATTERY GOES DEAD OR THECONDITION IS OTHERWISE DETECTED AND CORRECTED.THE ALLEGED DEFECT AFFECTSONLY THE EARLY PRODUCTION 1988 MODEL VEHICLES AND GM HAS ISSUED A SERVICEBULLETIN ADVISING SERVICE PERSONNEL OF THE POSSIBILITY OF THE ALLEGEDDEFECT AND HOW TO REMEDY THE PROBLEM. #======
1988 GMC K25 Problems, Complaints & Recalls | Skip That Year
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