GVWR: Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)
Make: GMC
Manufacturer: GENERAL MOTORS LLC
Manufacturer Id: 984
Model: Sierra
Model Year: 2004
Plant City: Flint
Plant Company Name: GM Truck Group
Plant Country: United States (USA)
Plant State: Michigan
Trim: 3500 (1 ton)
Turbo: Yes
Vehicle Type: TRUCK
Model year
COMPONENT
Complaint
2001
ENGINE AND ENGINE COOLING
ABOUT APRIL OF 2005 MY TRUCK STARTED SHUTTING OFF WHILE I WAS DRIVING DOWN THE ROAD. AT THIS TIME IT WOULD RESTART AUTOMATICALLY WITH NO OTHER PROBLEMS. TOOK IT IN TO THE CHEVROLET DEALERSHIP AND THEY STATED THAT THE TRUCK WAS MISSING A STALL CODE AND THAT THEY HAD UPDATED IT. IN SEPTEMBER IT STARTED TO DO IT ALL OVER AGAIN, I HAD ASKED SOME MECHANICS I KNOW ABOUT THE PROBLEM AND THEY SAID IT SOUNDED LIKE AN IGNITION PROBLEM. WE STARTED CHECKING ALL IGNITION CONNECTIONS, FUSES, GROUNDS ETC. IT STOPPED FOR ABOUT A MONTH AND STARTED DOING IT AGAIN. IT HAS GOTTEN TO THE POINT WERE IT WILL SHUT OFF THREE AND FOUR TIMES PER TRIP. WHILE MYSELF AND TWO OTHER PASSENGERS WERE WORKING IN LUGOFF SC IT SHUT OFF ON US IN THE MIDDLE OF A BUSY HIGHWAY, NEARLY CAUSING A MAJOR ACCIDENT. I HAVE TAKEN IT BACK TO THE CHEVROLET DEALERSHIP AND THEY STATED THAT THEY DID NOT KNOW WHAT THE PROBLEM WAS AND THAT IF IT DID IT AGAIN TO CALL THEM AND THEY WOULD SEND A SERVICE TECH OUT TO LOOK AT IT. I THINK THIS IS A MAJOR SAFETY CONCERN THAT GM NEEDS TO LOOK INTO. *JB
2004
POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
REFERENCE A GMC 2004 SIERRA 3500 4 WHEEL DRIVE PICK UP TRUCK, 6.6L DIESEL ENGINE WITH 6 SPEED MANUAL TRANSMISSION. THE MOLDED RUBBER AROUND THE DRIVELINE CENTER SUPPORT CARRIER BEARING (PART # 12472424) DRY ROTTED CAUSING DRIVELINE VIBRATION THAT, IN TURN CAUSED THE TRANSFER CASE TO FAIL. THE VIBRATION WAS SLIGHT AND NOT CONSTANT, NOT INDICATING A MAJOR PROBLEM. THE PART IN QUESTION IS A NON-SERVICEABLE PART, PREVENTIVE MAINTENANCE DID NOT AND WOULD NOT PREVENT THIS FAILURE. THE TRANSFER CASE WAS TOTALLY DESTROYED AND WAS ON THE VERGE OF TOTAL LOCK UP WHICH WOULD HAVE CAUSED THE REAR WHEELS TO LOCK UP UNDER NORMAL DRIVING CONDITIONS. THE COST TO FIX THIS PROBLEM IS OVER $3000 DOLLARS TO HAVE THE DEALER DO THE REPAIRS. SINCE I AM A COMPETENT MECHANIC, I INSPECTED AND FOUND THIS PROBLEM WHEN I FIRST NOTICED A SLIGHT VIBRATION, MOST VEHICLE OWNERS WOULD HAVE DRIVEN THE TRUCK UNTIL THE WHEELS LOCKED UP POSSIBLY CAUSING A LIFE THREATENING CRASH. THE PART IN QUESTION IS WITHOUT A DOUBT A DEFECTIVE PART. IT IS MADE IN CHINA. WHILE MANY PARTS COMING FROM CHINA TODAY ARE OF SUFFICIENT QUALITY, CHINESE RUBBER IS SUBSTANDARD AND DRY ROTS IN ABOUT TWO YEARS UNDER MOST CIRCUMSTANCES. IT IS UNCONSCIONABLE FOR GM TO USE SUBSTANDARD PARTS IN SUCH CRITICAL AREAS OF THEIR VEHICLES. *TR