NHTSA Complaint #757315 — 1999 CHEVROLET SILVERADO

I HAVE HAD MY TRUCK WHICH I PURCHASED USED IN MARCH 2000, WITH 13,000 MILES ON IT INTO THE DEALER NUMEROUS TIMES TO IDENTIFY AND CORRECT A PROBLEM WITH THE REAR END MAKING A CLUNKING SOUND UPON SHIFTING AND STARTING FROM A COASTING POSITION. THE FIRST TIME I WAS TOLD THEY COULD NOT FIND A PROBLEM, THE SECOND TIME I HAD THE SERVICE MANAGER RIDE WITH ME AND HE HEARD THE PROBLEM, THEY PERFORMED MAINTENANCE AS DELINEATED IN A SERVICE BULLETIN COVERING CHANGING THE OIL IN THE REAR END. THIS DID NOT CORRECT THE PROBLEM, THE PROBLEM HAS GOTTEN SIGNIFICANTLY WORSE IN THE LAST 6,000 MILES. I HAD ANOTHER GM MECHANIC LOOK AT THE PROBLEM AND HE INDICATED THAT THE REAR END WAS NOT PROPERLY SET UP AT THE POINT OF MANUFACTURE AND TO GO BACK TO THE DEALER AND TELL THEM. THE THIRD TIME I HAD THE TRUCK IN FOR THIS PROBLEM, ONCE AGAIN I HAD THE MANAGER RIDE WE ME AND HEAR THE NOISE AGAIN AND AGAIN. THEY LOOKED IT OVER, AND NOT WANTING TO TEAR INTO THE REAR END DISCOUNTED THE PROBLEM AND INHERRENT TO THIS VEHICLE AND DESCRIBED THE PROBLEM AS DIFFERENTIAL TORQUE SLAP. I AM QUITE CONCERNED ABOUT THIS NOISE, AND THE ISSUE OF WARRANTY COVERAGE. I DONT LIKE HAVING TO GO BACK TIME AND TIME AGAIN TO RESOLVE A PROBLEM AND TOLD THERE IS NONE. I BOUGHT THE TRUCK TO DRIVE NOT SIT IN THE SERVICE BAY. *AK