Exhaust manifold bolts broke off resulting in pinging noise. My mechanic verified the broken bolts and told me this could lead to other more serious problems including possible fire. He also suggested I should contact a gm dealer to see if there was a recall for this problem. I have been driving for more than 50 years and I have never had exhaust manifold bolts just break off.
2000 Chevrolet Silverado 1500 engine complaints
Page 2 of 2: complaints 11 to 21 of 21, newest first, as owners wrote them.
Tl*the contact owns a 2000 chevrolet silverado 1500. The vehicle was parked outside of his residence. The contact observed that flames ignited from underneath the hood. The contact was able to extinguish the flames with a fire extinguisher and garden hose. There were damages to the vehicle and no injuries. The manufacturer was notified of the failure and stated that there would be a response within a couple of days. The failure and current mileages were was 120,000.
Tl*the contact owns a 2000 chevrolet silverado 1500. Ever since the vehicle was purchased, the engine has been making a strange noise. The contact took the vehicle to the dealer and they found no failures. The manufacturer stated that they were aware of the pistons striking against the metal because there was not enough clearance between the pistons and the cylinder. The manufacturer could not correct the failure and there were no recalls for the issue. The mileage on the vehicle has exceeded the warranty; therefore, the manufacturer will not assist. In addition, the contact heard a noise coming from the rear of the vehicle. The dealer stated that there was a slack in the rear, which could be repaired by replacing the yoke with a nickel plated cover. The repair was not performed because the contact feels as if the manufacturer should be responsible for the repair cost. The failure mileage was 87,000 and current mileage was 125,350. Updated 06/09/09. *lj the consumer stated when the transmission shifted into 2nd and sometime third gear, the rear end of the vehicle sounded as if it were about to come apart. The engine also made a noise as if the valves were clicking and tapping. Updated 06/10/09.
2000 chevy silverado, 5.3 lite z71. Cold engine knock.
Tl*the contact owns a 2000 chevrolet silverado 1500. On september 3, 2008, the contact noticed that his vehicle was leaking antifreeze. He took the vehicle to a local repair shop and was informed that the leak originated from the intake manifold gasket, which was defective. The mechanic advised him to research to see if there was a recall for this failure before having the vehicle repaired. The vehicle has not yet been repaired and the manufacturer has not been notified. The current mileage was 110,200 and failure mileage was 110,000.
Tl*the contact owns a 2000 chevrolet silverado 1500. When the vehicle is cold and is started, the engine knocks from thirty seconds to one minute. Once the vehicle has warmed, the knocking stops. General motors stated that this was characteristic of the vehicle and is known as engine knock cold start, or carbon build up on the piston head. The contact was informed that the repair would be his responsibility. The current mileage was 50,000 and failure mileage was 49,000.
When starting the vehicle at any time a knocking noise was heard.
The pistons in the engine are knocking. The dealer states they cannot hear the noise which is quite obvious and getting louder. The vehicle has been twice for this problem and still it is not corrected. We have contacted the manufacturer, bbb, congressman, atty general, in hopes to have something done to prevent the locup of this engine. If the engine were to lockup at 70mph on the intersate there could be a bad accident. There are several hundreds if not thousands of people with the same problem. There is even a website dedicated to the problem http://www.gmpistonslap.cjb.net/. Thank you.
Motor has been knocking since I purchase the vehicle I'll just like for something to be done.
Lifters knock at startup all the time. Dealer has replaced lifters, used heavy grade oil and cleaners, higher grade gasoline used for six months, nothing has stopped the knocking. Service manager has stated that general motors has a problem with the 3.5l engines and this dealership has worked on the same problem with many other customers whom purchased the 1999/2000 series trucks with this engine, including replacing the engine, but, he would not put into writing what he was telling me. I have been waiting for a meeting with the gm rep. For about 3 weeks and still do not have an appointment.
While traveling at 35mph exhaust would make shrilling/grinding noise which was coming from under the truck. Would also be vibrating. This caused noise to become louder. Took vehicle to dealership & informed problem could not be solved, but could hear the noise.
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