What 131 owners told NHTSA about the 2014 GMC Sierra 2500 Hd

2014 Sierra 2500HD SN ([XXX]) Leaving on vacation towing camper with family Bosch CP4 fuel pump issue left me stranded on a HWY 9 just outside Clinton, AR which is a 2 lane HWY with no shoulder. The vehicle gave me no prior warning, dash board suddenly read power restricted followed immediately with complete power loss as I reached to top of hill. I was forced to steer and brake the truck and camper with no power, down the hill to prevent vehicles from passing at crest of hill. This left me and my family and numerous other drivers in a very dangerous situation as cars tried to pass. I had to open the hood and try to determine what was going on. I directed traffic until a Van Buren County, AR Sherriff’s Deputy arrived scolding me to get the truck and trailer out of the highway. I was forced to unhook trailer in middle of HWY and leave it. All the while, vehicles passing in danger of head on collision because there was only one officer directing both sides of traffic. GM is aware of this issue that cost me $10336 at GM Dealership where repaired. Had I been aware, I would have had this replaced this Bosch CP4 part to prevent the unsafe conditions I encountered. One message came on dash, restricted power, and I was powerless. Final Bill stated “Found Injection pump has come apart internally and has put metal through the system.” Internet search stated: According to InjectorsDirect.com, the 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year-range model. Failure of this CP4 pump is usually catastrophic, causing metal particulates to contaminate the entire fuel system. Please help this from happening to another person. These trucks are advertised showing families pulling campers traveling through mountains. That is exactly what my family was doing. I have additional documentation if needed. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ODI 11460479

The vehicle experienced a catastrophic failure of the fuel pump while towing a horse trailer on a busy state highway. This was a major safety risk because the vehicle gave no warning before it just stop working. It was a miracle we were able to coast off the highway into a wide spot that was able to accommodate both the truck and the horse trailer. The truck only has 77,000 miles and we are being told that none of the repair is covered under warranty. We were also told that the fuel pump has completely contaminated the entire fuel systems, including the injectors so everything must be replaced. The quote we received from the dealership for this massive repair is $12,208.59. No warning lamps, messages or other symptoms occurred until the truck died. Once the truck died, it could not be restarted and then began displaying a code that said the fuel filter needed to be replaced.

NHTSA ODI 11458816

MY FUEL PUMP AND INJECTORS FAILED WHILE I WAS DRIVING, STRANDING MY TRUCK IN THE MIDDLE OF TRAFFIC RIGHT WHERE A CITY STREET WAS CHANGING TO A COUNTRY ROAD. THE GMC DEALERSHIP FALSELY CLAIMED THAT THIS WAS CAUSED BY USING UNAPPROVED FUEL. THE FUEL I USED WAS B20 BIODIESEL, WITH 80% RENEWABLE DIESEL, WHICH MEETS DIESEL SPECIFICATIONS AND IS A LEGAL ROAD FUEL IN CALIFORNIA. THEY ALSO CLAIMED THAT A CASCADE OF OTHER PROBLEMS WERE ALL CAUSED BY MY FUEL AND REFUSED TO APPLY MY WARRANTY.

NHTSA ODI 11045708

THE TRUCK WAS AVERAGING ABOUT 20 MPG BUT SHIFTING ERRATICALLY LIKE IT COULDN'T DECIDE WHAT GEAR TO BE IN. AFTER USING THE 4WD THE FIRST TIME THE MPG DROPPED OFF TO ABOUT 17 AND HAS BEEN DECLINING STEADILY CURRENTLY I GET 14 TO 15 MPG AND DRIVE 150 MILES PER DAY MOSTLY HIGHWAY. I HAVE TAKEN IT BACK TO THE DEALER TWICE THEY SAID THE COMPUTER COULDN'T GET USED TO MY DRIVING STYLE AND REPROGRAMMED THE COMPUTER. WHEN I TOOK IT BACK ABOUT THE MILEAGE A GUY CAME OUT AND SAID HE COULD TELL IF SOMETHING WAS STUCK AND SWITCHED THE 4WD A FEW TIME AND SAID IT WAS FINE. MY MPG IS GETTING WORSE AND IT SLAMS IN AND OUT OF GEAR 2-3 TIMES IN A MATTER OF SECONDS WHILE SUSTAINING A STEADY HIGHWAY SPEED ON A FLAT SURFACE. *TR

NHTSA ODI 10676277