NHTSA Complaint #11418356 — 2013 GMC SIERRA 3500

While driving carrying a full load in the back of the truck, the engine began to lose power, started running rough and then died without any warning within a matter of seconds. No indicator light or warnings were displayed. We were traveling in the number one lane during heavy traffic and had difficulty trying to stop with no power nearly causing an accident. We were left stranded in the fast lane of a large intersection during heavy traffic causing a large traffic jam. The vehicle was towed to a mechanic who found metal shavings throughout the fuel system indicating the high pressure fuel pump had disintegrated internally causing the metal shavings. I have asked the parts be saved for further inspection if necessary. The mechanic stated this type incident has occurred and is a well documented and known deficiency for this make and model of truck.