NHTSA Complaint #11586784 — 2017 CHEVROLET SILVERADO 1500

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the contact noticed a knocking sound coming from the engine compartment. The vehicle was taken to the dealer; however, the engine was checked, and no issues were found with the engine. The failure reoccurred. The contact stated that after completing an inspection of the engine compartment, the contact noticed the fractured bolts on the exhaust manifold. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.