2000 GMC Passenger Vehicle

ACCELERATOR PEDAL STICKS ! JERKS THE VEHICLE WHEN IT FINALLY ENGAGES...CAN CAUSE AN ACCIDENT WHEN PULLING OUT OF A PARKING LOT. IT HAPPENS WHEN VEHICLE IS BEING DRIVEN OR JUST BACKING OUT. IT HAS BEEN THIS WAY SINCE WE PURCHASED THE TRUCK 3 MONTHS AGO. THIS IS A CONSTANT,REPEAT AND HABITUAL PROBLEM THAT NEEDS TO BE INVESTIGATED FURTHER. *AK

BRAKE LIGHTS FAILED FOR THE SECOND TIME SINCE 2000. TOOK VEHICLE FOR RECALLED MFS IN DECEMBER 2002 RECALL #01V-364. AT THAT TIME THE SWITCH HAD FAILED. I ASSUMED THE SWITCH WAS REPLACED. THIS IS THE SECOND TIME THIS VEHICLE NEEDS A NEW MFS, DEALER CLAIMS THAT MFS WAS NOT THE RECALLED PART. DEALER CLAIMS THE HAZARD SWITCH IS THE RECALL PART AND THAT THIS TIME THE HAZARD SWITCH IS WORKING PROPERLY. THE SYMPTOMS ARE THE EXACT SAME AS THE FIRST TIME THE VEHICLE WAS RECALLED. THE REMEDY FOR THE FIRST RECALL CALLED FOR A TOTAL REPLACEMENT OF THE MFS THAT FAILED AND GM WAS WORKING ON A REPAIR KIT FOR THE VEHICLES THAT HAD NOT FAILED. I WILL RETAIN OLD SWITCH AFTER THE SECOND REPLACEMENT. STILL WAITING FOR RESPONSE FROM ZONE MANAGER OF G.M. *JB

10-02 RIVET FATIGUE CONCERNING SPARE TIRE CARRIIER. SPARE TIRE BRACKET BROKE OFF SENDING TIRE AND WHEEL DOWN THE HIGHWAY.NO TSB NO NEW FIX.3-04 TAILGATE CABLES RUSTED BROKE, REPLACED WITH NEW. 5-04 REAR EMERGENCY BRAKE FAILURE, REAR E -PADS GONE. DETERMINED THAT ROAD CHEMICAL DETERIORATION IS THE CAUSE.G.M. HAS NO FIX. WILL NOT FIX UNTILL THERE IS A SOLUTION.CERAMIC PADS? THE VIECHLE HAS 31,000 MILES AND DISC BRAKES ALL THE WAY AROUND.*AK

ENGINE KNOCK IN COLD START(IT SOUNDS LIKE A DIESEL ENGINE TRUCK), THE DEALER SAYS IT'S CARBON BUILD UP,BUT I DID SOME RESEARCH AND FOUND OUT THAT CARBON BUILD UP IS PROBABLY NOT THE CAUSE. THE CUASE IS MORE LIKELY TO BE A PISTON SLAP,BECAUSE WHEN THEY DESIGNED THIS ENGINE THEY MADE THE PISTON SKIRTS TOO SHORT CREATING A GAP BETWEEN THE CYLINDER WALL AND THE PISTON, CAUSING THE PISTON TO RATTLE INSIDE THE CYLINDER WALL WHEN YOU FIRST START THE ENGINE,NOW BECAUSE THE PISTONS ARE MADE OUT OF ALUMINUM THIS MATERIAL EXPANDS WITH HEAT AND CONTRACTS WITH THE COLD,SO WHEN YOU START THE ENGINE YOU CAN HEAR THE KNOCK,BUT AS SOON AS THE ENGINE HEATS UP THE ALUMINUM PISTON EXPANDS AND SEALS THE GAP AND THAT IS WHAT STOPS THE KNOCK. THE DEALER HAS A SERVICE BULLETIN WHERE IT SAYS THAT IT IS A COLD START KNOCK DUE TO CARBON THAT HAS FORMED ON THE PISTON, AND THAT THE KNOCK STARTS IN THE FIRST 12,000-15,000 MI AND THAT IT IS NOT DETREMENTAL TO THE ENGINE. THE PROBLEM IS THAT THIS IS MY SECOND ENGINE AND I ONLY HAVE 30,000 MI ON IT AND IT KNOCKS REALLY BAD IN THE MORNINGS WHEN I START IT UP, AND IN THE AFTERNOONS AFTER I GET OFF OF WORK AT 4 P.M. THE SERVICE REP FOR THE DEALER WHERE I BOUGHT THE TRUCK TOLD ME THAT HTHE ONLY THING THAT THEY COULD DO IS DECARBON THE ENGINE, BUT THAT THE KNOCK WAS GOING TO COME BACK. THE FIRST ENGINE THAT I HAD ON THIS TRUCK STARTED KNOCKING AT 29,000 MI AND IT GOT TO THE POINT WHERE EVEN IF THEY DECARBONED THE ENGINE THEY COULD NOT STOP THE ENGINE FROM KNOCKING,SO THEY ENDED UP HAVING TO OPEN THE ENGINE TO SEE WHAT THE PROBLEM WAS AND IT TURNED OUT THAT THE BLOCK WAS CRACKED IN ONE OF THE CYLINDERS, AND THAT'S WHY THEY ENDED UP HAVING TO REPLACE THE ENGINE. WHEN THEY REPLACED THE ENGINE THEY REPLACED IT WITH ONE OF THE SAME DESIGN AND THEY TOLD ME THAT THIS ENGINE WAS NOT GOING TO HAVE THAT PROBLEM. I FOUND OUT THAT THEY ALREADY REDISINED THE ENGINE THIS YEAR AND IT DOES NOT HAVE THIS PROBLEM.

TRANSMISSION FAILURE. THE SUN SHELL FAILED AND THE TRANSMISSION SHOP SAID, THAT THEY ARE DOING 5-6 LATE MODEL GM VEHILCES A WEEK WITH THIS SAME FAILURE. OK, SO GM HAS ISSUED A PARTS BULLETIN UPDATE, SO WHAT. THE COST OF REPAIR IS NOT COMING OUT OF THEIR POCKETS. I THINK THAT MORE OF US NEED TO COMPLAIN AND MAYBE SOMETHING WILL HAPPEN. *LA

GMC SONOMA AND JIMMY'S FROM '98-01 WE HAVE HAD MULTIPLE FAILURES FROM THE BACKREST ADJUSTMENT LEVER SHAFT TWISTING OFF AT THE HANDLE, THE SHAFT IS SPLIT ON THE END WHERE THE HANDLE FASTENS ON WITH A SCREW GOING IN FROM THE END THAT PRY'S THE TWO HALF'S TIGHT TO THE HANDLE AND THE SHAFT ALWAYS BREAKS CLEAN WHERE THE SPLIT STARTS, -VERY POOR DESIGN. *AK