1994 GMC Suburban

THE WINDSHIELD WIPERS WORKED AFTER BEING MANUALLY "HELPED" SINCE THE TIME OF PURCHASE, BUT NO LONGER. WHEN I CONTACTED GMC, THEY TOLD ME THE CURRENT RECALL DID NOT APPLY TO MY VEHICLE. I HAVE PURCHASED THE CIRCUIT BOARD MYSELF AND WILL NOW NEED TO HAVE SOMEONE INSTALL IT. RECALL NEEDS TO INCLUDE ADDITIONAL VIN #'S. I WAS TOLD BY THE GMC TOLL FREE NUMBER THAT IT WAS NOT A "SAFETY" ISSUE, SORRY. *NM

DT: THE WINDSHIELD WIPERS WHEN TURNED WILL INTERMITTENTLY COME ON AND OFF. SOMETIMES IT HAS TO BE DONE MANUALLY, AND SOMETIMES THEY WILL NOT COME ON AT ALL. THIS ALSO HAPPENS WHEN STARTING VEHICLE, BUT OCCASIONALLY WINDSHIELD WIPERS STOP IN THE MIDDLE. DEALER REPLACED THE WINDSHIELD WIPER MOTOR. THEN, RECEIVED A RECALL NOTICE FOR ANOTHER VEHICLE, BUT WAS TOLD THIS VEHICLE DID NOT FALL UNDER RECALL DUE TO T VIN. *AK

DT: THE CONTACT STATES THAT HE OWNS A 1994 GMC SUBURBAN. HE STATES THAT HE IS HAVING PROBLEMS WITH WINDSHIELD WIPER WASHER MOTOR BECAUSE IT IS WORKING INTERMITTENTLY. A RECALL WAS ISSUED ON SOME GMC VEHICLES, BUT THE MANUFACTURER TOLD HIM THAT THIS VEHICLE WAS NOT INCLUDED IN THE RECALL DUETO VIN. THE PROBLEM STARTED INTERMITTENTLY AND IT BECAME WORSE.*AK

DIESEL K2500 SUBURBAN. INJECTION PUMP SUFFERED A PROBLEM WITH INTERMITTENT FUEL CUTOUT. SOLUTION WAS REPLACEMENT OF INJECTION PUMP. REPEATED DEALER ATTEMPTS TO DIAGNOSE EXACT PROBLEM WAS NOT SUCCESSFUL. SEAT MOUNT FAILED. THIS CAUSED SEAT TO TILT ON BASE & TORQUE REMAINING MOUNTS. THE WIPER MOTOR CUT OUT AT RANDOM. GM ACKNOWLEDGES THIS PROBLEM FOR OTHER MODELS, BUT NOT FOR MINE. THIS WOULD CAUSE FAILURE OF MOTOR FUNCTIONS (IN MY CASE, THE WIPER WOULD NOT START IF PARKED, BUT WOULD START IF PULLED OUT OF PARK POSITION). BRAKES ARE THE MOST INTERESTING PROBLEM. WHILE THERE MAY INDEED BE A PROBLEM WITH PEDAL SUDDENLY GOING TO THE FLOOR I THINK THE ACTUAL SITUATION IN MOST OF THOSE CASES MAY ACTUALLY BE AS FOLLOWS. I HAD TO BRAKE FAIRLY HARD IN UNEXPECTED TRAFFIC, AND THE ANTILOCK BRAKE SYSTEM FIRED. I WAS MOVING NOT FASTER THAN ABOUT 50 MPH AT THE TIME, BUT IT TOOK (MEASURED) 642 FEET TO STOP THE VEHICLE. AT NO TIME DID I RELEASE THE ANTILOCK SYSTEM BEFORE THE VEHICLE STOPPED. DURING THIS TIME, I WAS ABLE TO STEER QUITE SUCCESSFULLY AROUND TWO STOPPED VEHICLES, AND TO RUN UP ON A GRASSY SHOULDER AND BACK ONTO THE PAVEMENT. I HAD THE FRONT BRAKES RELINED AND TRUED, AND THE FLUID FLUSHED AND REPLACED, AT A LOCAL SHOP SHORTLY AFTER PURCHASING THE VEHICLE USED (WITH ABOUT 56,000 MILES). APPARENTLY, GM KNOWS THAT IT IS NECESSARY TO CYCLE THE ANTILOCK MOTOR SO THAT ALL THE PISTONS ARE AT THE RIGHT POSITION BEFORE BLEEDING THE BRAKES. IF THE BRAKES ARE BLED WITH THE MOTOR NOT CENTERED, THE EFFECT IS THAT FULL MODULATION OF THE BRAKES DOES NOT OCCUR, FOR SOME OR ALL WHEELS, WHEN THE ANTILOCK SYSTEM FIRES. HOWEVER, THE DUMP-VALVE FUNCTION RELIEVES ALL BRAKE PRESSURE WHILE THE MOTOR IS RUNNING. THE RESULT IS THAT ONLY PARTIAL BRAKE APPLICATION IS EFFECTIVELY BEING MADE -- THIS MIGHT BE ALMOST ANY ARBITRARY PERCENTAGE OF A 'NORMAL' FULL BRAKE APPLICATION -- AND THIS MAY GREATLY REDUCE THE AMOUNT OF DECELERATION SEEN IN CRITICAL SITUATIONS.