2000 GMC Sierra engine problems

Filed Dec 20, 2012 · Engine · 120,000 miles · OH

Exhaust manifold bolts front and back on both sides broke off , this is common problem on this truck.

Filed Feb 6, 2008 · Engine · 69,633 miles · OK

Died on highway, cranked but wouldn't start, ended up being crankshaft position sensor, distributor cap, ignition rotor, crankshaft went out and burnt up the other two. Few days later happened again, died on highway, crank but won't start, had to replace distributor cap, ignition rotor, again with ignition coil. Caused 2 tow charges, now check engine light is on and the catalytic converter has gone out.

Filed Apr 17, 2006 · Engine · 85,000 miles · AL

Dt*: the contact stated while driving 70mph, the engine failed without warning followed by smoke erupting from the front underhood area with no visible flames. The contact managed to coast the vehicle to the curb in neutral and exit the vehicle. Upon initial inspection on the skid plates, there was a rod bearing failure, but oil was still present. The vehicle was towed to an independent repair shop for further inspection. The mechanic determined there was a hole in the engine block, however the vehicle received regular maintenance and there were no obvious road hazards.

Filed Apr 18, 2005 · Acceleration, Brakes · 36,000 miles · NM

2000 gmc sierra has problems with brake rotors, engine failing to restart, and the passenger cab was not level.*mr shims were installed to make the cab level. The rear rotors were crystallized and flaking off which caused pulsation while braking. The ABS sensor failed which resulted in intermittent brake loss. The gas pedal became stuck at times.

Filed Apr 4, 2004 · Engine · 20,000 miles · PA

Valve tap on cold start lasts approximately one minute. Gmc claims it is carbon build up in the combustion chamber and will not damage the engine. This is unsatisfactory. Any tapping sound is indicative of lack of lubrication and will prematurely wear the engine or its components particularly after warranty runs out. See service bulletin #01-06-01-028a. Or document #1271016 "engine knock on cold start".

Filed Dec 8, 2003 · Engine · 29,900 miles · PA

Consumer stated engine valve was knocking. As a result a loud noise came from the vehicle.

Filed Jul 29, 2003 · Engine · 00

While driving engine warning light will randomly flash on and off. Dealership cannot locate the problem. 85 kilometers.

Filed Jan 23, 2003 · Engine · 32,000 miles · CA

Had talked to dealership two times complaining of engine knock on start up. Both service advisors told me that is a common problem and I don't need to worry about it. I called gmc customer service to get the problem documented an to see what they think of it. They informed me to take it to the dealership and give my service request number (1-64044981) and have them diagnose the problem. The dealership had me pick the vehicle up and they told me the shop foreman listened to my noise along with two other vehicles of the same make, model, and year and all made the same noise. I called gmc back to let them know the problem was not diagnosed and got the voicemail box of the represenitive so I left a message to please call me back. I have not recieved a call back so I called and talked to two other represenitives and they will not help me they just left messages for the original represenative that I talked to. I guess that gmc does not want to talk to me about my complaint.

Filed Nov 14, 2002 · Engine, Fuel system · NJ

Fuel gauge is erratic. Dealer found that fuel level sensor shorted/replaced/removed. *sc.

Filed Aug 5, 2002 · Electrical, Engine · CA

Vehicle has stalled twice at 20 MPH, first time dealer found loose terminal at engine wiring harness. Vehicle is at dealership at this time.