10
Complaints
0
Crashes
0
Fires
0
Deaths

This Problem Across All Years

All Power Train Complaints

Showing 10 of 10
Jan 9, 2024

CP4 high pressure fuel pump failed causing Loss of Motive Power (LOMP) in Oct of 2018. Truck became hard to steer and brake but I was traveling at a lower speed. Had it of been 1 hour later I would have been at freeway speeds pulling a 13000lbs trailer. I had the truck towed to a local dealer where they diagnosed the truck as having a failed CP4 high pressure fuel pump made by Bosch. They informed me that the entire fuel system would have to be replaced do to the large amount of metal contaminants that this catastrophic failure produces and spreads though out the entire system. The total cost for the repairs were not covered under any type of warranty or recall and had to be paid entirely out of pocket. Not only was this a huge inconvenience as I was trying to leave town for a vacation it was very very expensive. I still can not understand why there has never been a recall on this issue. I think it can be related to a safety issue as a LOMP. I believe GM knew that the CP4 pump was and could be a faulty product but continued to use it.

Jan 9, 2024

CP4 high pressure fuel pump failed causing Loss of Motive Power (LOMP) in Oct of 2018. Truck became hard to steer and brake but I was traveling at a lower speed. Had it of been 1 hour later I would have been at freeway speeds pulling a 13000lbs trailer. I had the truck towed to a local dealer where they diagnosed the truck as having a failed CP4 high pressure fuel pump made by Bosch. They informed me that the entire fuel system would have to be replaced do to the large amount of metal contaminants that this catastrophic failure produces and spreads though out the entire system. The total cost for the repairs were not covered under any type of warranty or recall and had to be paid entirely out of pocket. Not only was this a huge inconvenience as I was trying to leave town for a vacation it was very very expensive. I still can not understand why there has never been a recall on this issue. I think it can be related to a safety issue as a LOMP. I believe GM knew that the CP4 pump was and could be a faulty product but continued to use it.

Sep 7, 2023

TRANSMISSION CONTROL MODULE (TCM). FAILURE OF THIS PART LEAVES THE VEHICLE INOPERABLE AND UNABLE TO DRIVE. BEING STRANDED, OR IN TRAFFIC CAN CAUSE INJURY TO MYSELF OR ANY OTHER DRIVER THAT MAY ENCOUNTER ME DISABLED UNKNOWN, MAJOR PROBLEM WITH THIS MAKE AND MODEL OF VEHICLE. DEALER INVENTORY OF THE PART IS EXHAUSTED AND TRUCKS ARE SITTING INOPERABLE ALL OVER THE U.S.A. NO INDICATIONS OF A ISSUE WERE DISPLAYED PRIOR TO THE PROBLEM. THE PROBLEM DOES DISPLAY ON DASH, AFTER THE PROBLEM SHOWS UP

Sep 7, 2023

TRANSMISSION CONTROL MODULE (TCM). FAILURE OF THIS PART LEAVES THE VEHICLE INOPERABLE AND UNABLE TO DRIVE. BEING STRANDED, OR IN TRAFFIC CAN CAUSE INJURY TO MYSELF OR ANY OTHER DRIVER THAT MAY ENCOUNTER ME DISABLED UNKNOWN, MAJOR PROBLEM WITH THIS MAKE AND MODEL OF VEHICLE. DEALER INVENTORY OF THE PART IS EXHAUSTED AND TRUCKS ARE SITTING INOPERABLE ALL OVER THE U.S.A. NO INDICATIONS OF A ISSUE WERE DISPLAYED PRIOR TO THE PROBLEM. THE PROBLEM DOES DISPLAY ON DASH, AFTER THE PROBLEM SHOWS UP

Aug 30, 2023 220,000 mi

The contact owns a 2011 Chevrolet Silverado 3500. The contact stated while driving approximately 10 MPH and slowing for a traffic signal, the vehicle downshifted very hard. The contact stated that there was an audible clunking sound while the transmission was downshifting. The contact stated that at approximately 1 MPH, the rear wheels locked up and the vehicle came to a sudden stop. The contact stated that the failure had recurred and was unpredictable. The contact stated that the "Shift Inhibited" message was displayed. The contact stated that the rough shifting occurred at various speeds while upshifting or downshifting. The contact had taken the vehicle to an independent mechanic where it was diagnosed and determined that the Transmission Control Module (TCM) needed to be replaced. The contact was informed that the TCM module was on a national back order. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 220,000.

Aug 30, 2023 220,000 mi

The contact owns a 2011 Chevrolet Silverado 3500. The contact stated while driving approximately 10 MPH and slowing for a traffic signal, the vehicle downshifted very hard. The contact stated that there was an audible clunking sound while the transmission was downshifting. The contact stated that at approximately 1 MPH, the rear wheels locked up and the vehicle came to a sudden stop. The contact stated that the failure had recurred and was unpredictable. The contact stated that the "Shift Inhibited" message was displayed. The contact stated that the rough shifting occurred at various speeds while upshifting or downshifting. The contact had taken the vehicle to an independent mechanic where it was diagnosed and determined that the Transmission Control Module (TCM) needed to be replaced. The contact was informed that the TCM module was on a national back order. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 220,000.

Aug 4, 2017 112,000 mi

DIESEL EXHAUST FILTER (DEF) AND FLOW REDUCTION TUBE ON DURAMAX LML ENGINE. FAUTLY DEF REQUIRES EXTREMELY HIGH TEMPERATURES TO CLEAN - OR REGENERATE - CAUSING THE DEF AND REDUCTION TUBE TO FAIL. HIGH TEMPERATURES ARE A FIRE HAZARD TO VEHICLE AND GRASS OR OTHER TERRAIN OVER WHICH THE TRUCK IS PARKED. GM NO LONGER MANUFACTURES THE REDUCTION TUBE, GM PART NUMBER 25960609 FORCING THE CONSUMER TO WAIT FOR GM TO MAKE PART ON SPECIAL ORDER BASIS - OVER 30 DAYS - OR FORCE CONSUMER TO REMOVE DEF OR MAKE OTHER FABRICATION, ORDER TO OPERATE THE VEHICLE. GM IS AWARE VIA CUSTOMER SERVICE AND DEALER COMPLAINTS THAT THE LACK OF PART 25960609 AVAILABILITY IS A NATION-WIDE PROBLEM AND HAS A HIGH FAILURE RATE. GM STOPPED PRODUCTION AS A COST SAVING MEASURE. THE DURAMAX LML ENGINE IS IN SERVICE MOSTLY AS COMMERCIAL VEHICLE FLEET. THUS, THERE IS A HIGH PROBABILITY OF UNSAFE FABRICATION IN ORDER TO RESTORE VEHICLE OPERATION.

Aug 4, 2017 112,000 mi

DIESEL EXHAUST FILTER (DEF) AND FLOW REDUCTION TUBE ON DURAMAX LML ENGINE. FAUTLY DEF REQUIRES EXTREMELY HIGH TEMPERATURES TO CLEAN - OR REGENERATE - CAUSING THE DEF AND REDUCTION TUBE TO FAIL. HIGH TEMPERATURES ARE A FIRE HAZARD TO VEHICLE AND GRASS OR OTHER TERRAIN OVER WHICH THE TRUCK IS PARKED. GM NO LONGER MANUFACTURES THE REDUCTION TUBE, GM PART NUMBER 25960609 FORCING THE CONSUMER TO WAIT FOR GM TO MAKE PART ON SPECIAL ORDER BASIS - OVER 30 DAYS - OR FORCE CONSUMER TO REMOVE DEF OR MAKE OTHER FABRICATION, ORDER TO OPERATE THE VEHICLE. GM IS AWARE VIA CUSTOMER SERVICE AND DEALER COMPLAINTS THAT THE LACK OF PART 25960609 AVAILABILITY IS A NATION-WIDE PROBLEM AND HAS A HIGH FAILURE RATE. GM STOPPED PRODUCTION AS A COST SAVING MEASURE. THE DURAMAX LML ENGINE IS IN SERVICE MOSTLY AS COMMERCIAL VEHICLE FLEET. THUS, THERE IS A HIGH PROBABILITY OF UNSAFE FABRICATION IN ORDER TO RESTORE VEHICLE OPERATION.

Sep 22, 2015 62,175 mi

TL* THE CONTACT OWNS A 2011 CHEVROLET SILVERADO 3500. WHILE DRIVING AT 70 MPH, THE VEHICLE SHIFTED OUT OF THE DRIVE POSITION AND INTO THE NEUTRAL POSITION INDEPENDENTLY. THE VEHICLE'S GAUGES FLUCTUATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO THE DEALER, BUT WAS NOT YET DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 62,175.

Sep 22, 2015 62,175 mi

TL* THE CONTACT OWNS A 2011 CHEVROLET SILVERADO 3500. WHILE DRIVING AT 70 MPH, THE VEHICLE SHIFTED OUT OF THE DRIVE POSITION AND INTO THE NEUTRAL POSITION INDEPENDENTLY. THE VEHICLE'S GAUGES FLUCTUATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO THE DEALER, BUT WAS NOT YET DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 62,175.