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.

- Ogden , UT, USA

The DEF system on this vehicle has failed three times since we bought it in 2021. The weather was not pleasant and in one case it was extremely dangerous. The DEF system froze up and fortunately I was able to limp it into a dealer who managed to get it working again but not after losing half a day and spending a couple hundred dollars. The second time a sensor failed and I was able to reset the system myself via removing all the electricity from the vehicle and doing what they call a shady tree reset. The third time the vehicle went into limp mode on us was when a sensor failed and the DEF pump failed at the same time. Chevy refused to help us cover the cost of repairs and refuses to replace the defective system. The vehicle might be over ten years old but it is like showroom new, it only had 20,000 miles on it in 2021 when we bought it and the previous owner took very good care of the truck. The vehicle now only has 32,000 miles on it. Our main argument is that Chevy aka GM knows about the defective systems and refuses to replace them. I have been in the transportation industry for a good part of my life and I know vehicles, especially diesel operated vehicles. The DEF systems are a complete joke and need to be removed especially for people who live in very cold climates.

- Benton, WI, USA

First of three vehicle collisions this year involving Chevrolet Silverado that have caught fire after involved in frontal impacts. Vehicle traveling westbound on sr 58 in lane county, Oregon. Involved in secondary collision with a Toyota pickup truck that had been struck by a loose truck tractor wheel. The impact by the wheel caused the Toyota to encroach into the path of the Chevrolet. The occupants of Chevrolet were able to extricate themselves. The vehicle subsequently caught fire and suffered extensive fire damage.

- Springfield, OR, USA

The contact owns a 2011 Chevrolet Silverado. While attempting to start the vehicle, it would hesitate without warning. The vehicle was taken to an independent mechanic who diagnosed that the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 38,000. The VIN was not available. Updated 09/17/15 updated 11/28/2017

- Kittanning, PA, USA

On Oct 4th, 2014 I was traveling from san angelo, tx to san antonio, tx, in my 2011 3500 Chevrolet diesel pickup, pulling our 5th wheel camper. When I neared junction, tx I could smell an odor of fuel. On I-10 eb mile 456, I noticed that my fuel gauge was rapidly dropping. When I left junction, the gauge read half full. At mile marker 497, I pulled into a rest stop, because the fuel gauge had dropped to the empty mark. I got out of the truck and could see the diesel pouring off the bottom of the motor. When the dripping stopped I attempted to start the truck, but it would not start. The starter motor was running, but the fuel tank was completely empty. In that distance the truck should have used five gallons of diesel pulling the trailer. Which means that about 14 gallons were dumped onto the highway within 40 miles. My truck was towed to cecil atkission Chevrolet in kerrville, tx. The diesel technician there told me that mine would be the 4th diesel he recently worked on with a similar issue. He even showed me another diesel truck that he was currently working on, also with a fuel leak.

- Dallas, TX, USA

Once the vehicle is in park it is sitting up and after putting the vehicle in reverse and starting to drive the vehicle lowers to the ground. The vehicle pulls when driving and causes an additional pull on the engine and fuel system.

- Natchez, MS, USA

Tank was filled to less than 1/2 tank and after stopping at location and restarting vehicle. Fuel level read empty. Fuel levels and computer system not accurate. Multiple occurrences. I did speak with the dealership and they "think" it could be the fuel pump. It has been doing this since the initial purchase. New vehicle status.

- Natchez, MS, USA

The contact owns a Chevrolet Silverado 3500. The contact stated that the vehicle suddenly stalled because the fuel tank was empty however, the fuel level gauge registered that there was one fourth of a tank of gasoline in the vehicle. The failure was recurring. The vehicle was taken to the dealer multiple times where the fuel tank, transfer pump and engine control module had been replaced but the failure was not remedied. The manufacturer was notified. The failure mileage was 85,000.

- Fritch, TX, USA

At 36000 miles the engine burns oil. So far as of 46000 miles pistons burned have been replaced pvc filter and valve were replaced along with valve cover. At present 54000 miles engine still burns oil.

- Denton, TX, USA

The contact owns a 2011 Chevrolet Silverado. The contact stated that the fuel tank was filled with urea special fuel for diesel trucks. The contact was driving 5 mph, when the vehicle unexpectedly decelerated from 55 to 5 mph without warning. The vehicle was taken to a dealer and the mechanic stated that the heater in the urea tank had to be replaced. The vehicle was not repaired. The manufacturer was notified. The failure mileage was 59,000.

- Ansley, NE, USA

Everytime I go to the pump it kicks out like the tank is full. If you hold the nozzle as its barely coming out it will work normal but you cant even use the lowest notch on the pump to set it on to pump gas, it wont work. So it needs to be fixed and I've told the Chevy dealer about it and they said there is nothing wrong with it and no recall. Im trying to make it a recall now so it will be fixed.

- Coxs Creek, KY, USA

The contact owns a 2011 Chevrolet Silverado 3500. The contact stated that while traveling 70 mph the vehicle stalled. The vehicle was towed to the dealer who diagnose that the diesel injection pump needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure and current mileage was 11,000.

- Mandville, LA, USA