2023 Chevrolet Silverado 2500

The high pressure fuel pump “grenaded” while driving on the interstate. Caused an immediate shutdown and barely got off the main lane to the shoulder in extremely heavy traffic putting me, my wife and others in imminent danger. The components were inspected by the dealer mechanic and insurance adjuster and they said that is what happened and that there was no reason for it to have happened. A warning of reduced power appeared about 3 seconds before the truck completely shutdown.

On February 3, 2026, my vehicle was taken to Rick Hendrick Chevrolet of Buford for diagnosis of a fuel system failure. The dealership charged a $235 diagnostic fee and concluded that the failure was caused by fuel contamination from an outside source. Based on this determination, my warranty claim with General Motors was denied and my case (#89096714) was closed. After this determination, the vehicle was transported to an independent diesel repair shop for further inspection. During the initial inspection, the technician removed the intake cover and discovered a large crack in the fuel injector pump. The pump had catastrophically failed and internally disintegrated, sending metal fragments throughout the fuel system. This clearly indicates the contamination originated from an internal mechanical failure of the fuel injector pump, not from outside fuel contamination. The independent technician confirmed that the injector pump failure caused metal debris to spread throughout the fuel system. Additionally, there was a visible leak at the front of the engine, which should have prompted further inspection in that area during the dealership’s diagnosis. It appears the dealership’s conclusion was based primarily on fuel sampling, without performing a full mechanical inspection of the injection pump and related components.