2001 Chevrolet Silverado 1500 Engine Problems

“I am the original owner of this very well maintained silverado. At just 100000 miles I noticed multiple exhaust manifold bolts broken, I had noticed a ticking sound for at least 10000 miles but could not locate the sound, as it turns out it was the broken exhaust bolts. These bolts break off at varying lengths including below flush which is extremely costly to have replaced. After a brief internet search I have realized this is a major issue with a majority of these vehicles. …”

“Two of the factory exhaust manifold bolts are broken on the drivers side of the engine, the back two nearest the fire wall. There is an exhaust leak due to the factory exhaust manifold bolts breaking off, and the manifold is leaking exhaust which is very close to the firewall material which I am worried that might catch on fire. Gm should have a recall on these exhaust manifold bolts on silverados to fix and repair them.”

“Went to change exhaust manifold and gasket when number one cylinder manifold bolt broke off under minimal pressure. Bolt broke off flush/recessed to gasket surface of cylinder head. Inspected bolt and came to the conclusion that the bolt was fractured when it was installed during vehicle assembly. Spoke with dealership and representative pulled up VIN history in computer. History showed an error with number one cylinder during vehicle assembly and dealer service representative stated that motor should have never made it out of the assembly plant. …”

“The vehicle would either stall while driving various speeds or fail to start. I was driving approximately 55 MPH when he noticed that the fuel gauge displayed empty which was inaccurate; however, the vehicle suddenly stalled, coasted to the shoulder. Car would not crank at first but then started, this happened several times, the vehicle would sporadically become hesitant to start. The vehicle would also stall periodically without warning. The other components, such as the radio, were still operable. The vehicle would sporadically become hesitant to start. …”

“The contact owns a 2001 Chevrolet Silverado 1500. The contact stated that the check engine warning light, low fuel warning light, and the ABS warning light were illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 200,000.”