Service Engine Soon light came on while driving. Code P0327 - Knock Sensor 1, Circuit Low Input (Bank 1) shown on code reader. Took vehicle to local service station and had both knock sensors and wiring harness replaced. Mechanic said that the rear knock sensor was corroded due to water getting to the sensor. Drove vehicle for about 2 weeks and service engine light came back on. Took vehicle back to service station where knock sensors were replaced again. Mechanic again stated that the rear sensor was corroded due to water getting to the sensor. Drove vehicle for about 1 week and the Service Engine light has come back on for the third time with the same P0327 code showing.

- Kingsland, GA, USA

Exhaust manifold bolts broke off and is now leaking exhaust fumes in side the truck also emissions is effected for osha or emission test this is a problem of safety I have seen alot of people with same problem and yet no recall, it is a problem in all phases of operation of the truck only has 49,000 miles don't have a photo but surely you are really familiar with this problem usually its the front and rear bolts cause is inferior materials and workmanship also can cause catalytic converter failure the cost of this repair should be on GM as it can run 1000S to fix

- Cottage Hills, IL, USA

My 2006 Chevy Silverado 1500 extended cab has just over 116000 miles on it and there is a loud knocking coming from the #2 lifter. It only does it when it gets warm or given gas on take off.. it doesn't do it when idling. I know 2 other people that have the same year and model truck with the same issue. I love my truck and I take extremely good care of it but to have it fixed, my mechanic said a new engine is better and cheaper than rebuilding it. Total cost of $6000. And the passenger side door leaks inside the truck when it rains, between the front and rear door. There should be something that Chevrolet can do to fix this problem. I have always loved Chevy, but I'm starting to get very disappointed with them and the quality being made and sold for such high amounts of cash..

- Alabaster, AL, USA

While driving or sitting still headlights go off from seconds to minutes then go on or until I push the dimmer switch sideways not up and down, the dashboard lights and clock go off from seconds or until I push the dimmer light switch sideways not up and down, the engine suddenly quits whether sitting still or driving.

- Gladstone, ND, USA

The contact owns a 2006 Chevrolet Silverado 1500. While driving various speeds, the vehicle lost engine power without warning. The vehicle was towed to the dealer where it was diagnosed that it needed to be completely reprogrammed and the ignition control module harness needed to be replaced. The vehicle was repaired, but the failure recurred several times after the repair. The vehicle was taken to the dealer three other times, but the vehicle was not repaired. The manufacturer was made aware of the failures. The failure mileage was 118,000.

- Greenville, SC, USA

My vehicle is burning more oil than normal. I purchased the pickup on Aug 10, 2016 and the day prior the dealership had just done a fresh oil change. I double checked the new oil before driving from the lot and seen the oil was new and fresh. A month and a half later my husband is driving home from cape may New Jersey which is a 6 hour drive and just after filling up his gas tank and driving home...the vehicle starts smoking profusely. He had to add 5 quarts of oil to the vehicle because it looked as though the oil was completely drained from the engine.

- N Chesterfield, VA, USA

Noticed a peculiar exhaust note somewhat like a tick that was reminescent of an exhaust leak. Took vehicle to local muffler exhaust shop and they inform me it is a manifold exhaust leak due to broken bolt(s) on the driver side. Was able to look for myself and I see one bolt head missing in the very back near the firewall.

- Melrose Park , IL, USA

The contact owns a 2006 Chevrolet Silverado. The contact stated that while driving at approximately 10 mph, the vehicle stalled without warning. The failure occurred on two occasions. The vehicle was taken to an independent mechanic where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 90,000.

- Charlotte, NC, USA

Broken/loose bolts on exhaust manifold causing tapping and exhaust and emissions leak.

- Round Rock, TX, USA

There has been a long time problem of broken exhaust manifold bolts on 1999 to 2007 Chevy Silverado and GMC Sierra pickups. This problem is on 80 to 90 percent of the trucks with in them years this is millions of vehicles on the road. These vehicles should be recalled by General Motors due to epa laws and emission standards not being able to be passed when these bolts break.

- Sylvester, GA, USA