Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

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4.3

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
26,686 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2008 Chevrolet Corvette engine problems

engine problem

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2008 Chevrolet Corvette Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #7

Sep 202013

Corvette 8-cyl

  • miles

A D V E R T I S E M E N T S

Concerned about the number of dropped valves in the LS7 engine used in the Corvette Z06 that may result in a blown engine causing a crash or fire. I have pretty much parked my 2008 Z06 due to this concern as GM refuses to acknowledge that there is a problem but empirical evidence on public user forums shows that there is a problem and GM should address and fix. I urge the NHTSA to look into this matter as a major safety concern!

- Atascadero, CA, USA

problem #6

Jan 062015

Corvette

  • 8,100 miles
I would like to file a complaint due to safety concerns over bad heads and valves put into a percentage of these Corvette Z06 cars. GM has admitted there is an issue and yet refuses to do anything about it. There was a machining error with these heads and the engines can drop a valve without warning or symptoms and without pulling your motor apart there is no way to determine if your car is affected or not. The fact is now that an increasing percentage of these cars are losing their engines and replacement cost is over $17000. Should the engine go it could lead to a serious crash from the rod puncturing the block and spreading oil under and around the car which not only affects the car in question but any others following it at highway speed. There have been some that have gone off the road because of this issue and it is taking any of the joy of owning or driving this car at all. GM will not even tell anyone out of warranty what to do to address the problem and when some heads were replaced by GM for cars under warranty, some were found to have bad tolerances before even being installed. GM has now gone on to their new model Z06 and is simply hoping this issue goes away while throwing all their loyal customers under the bus so to speak. Something should be done before there is a death cause from this issue, not to mention a loyal customer losing a 17000. Engine through no fault of their own. I have contact Chevrolet several times and was met with little response or enthusiasm to do anything about the problem at all.

- Naples, FL, USA

problem #5

Dec 292014

Corvette

  • 27,000 miles
I was concerned about excessive valve train noise and after reading several corvette forum threads about improperly machined heads by GM's supplier linamar, and that numerous vehicles have had valves drop and ruin the engines, I took my car with 27000 miles on it to a corvette specialty shop to have my valve guide clearance tested. I had (2) intake valve guides outside of service specifications, (4) exhaust valve guides outside of service specifications, and a combination of (10) other intake and exhaust valve guides at or near the maximum outside of service specifications. The car is being repaired with proper re-machining of the heads to make the valve guides concentric, new intake and exhaust valve guides installed, as well as new seals, valves, springs, etc. 88% of the corvette forum members who have had their cylinder heads tested for excessive valve guide wear, were out of service specifications. Source: www.corvetteforum.com/forums/C6-Z06-discussion/3386141-the-out-of-spec-guide-wear-registry.html GM needs to issue a recall on this issue, there have been numerous engine failures as a result of a dropped valve into a cylinder which can cause accidents and fires. GM is very aware of this issue, but refuses to do anything about this huge safety risk to drivers, passengers, and nearby vehicles if the engine fails going down the road.

- Prescott Valley, AZ, USA

problem #4

Jul 162013

Corvette

  • 15,000 miles

A D V E R T I S E M E N T S

Corvette 2008 has approximately 15,000 miles. The ignition coil on cylinder 6 failed. After repairs and approximately 500 miles thereafter, ignition coil on cylinder 8 failed.

- Mclean, VA, USA

problem #3

May 232013

Corvette 8-cyl

  • 85,000 miles
I was driving on the freeway at night on my way home around 11pm when my low beam lights went dark and would not turn back on.I've checked all the forums about this problem and it is happening a lot, but apparently GM wont include the 2008 vehicles even though ones like mine have the same equipment as earlier models with the same problems. A few days prior, my girlfriend was driving the car, and complained about the same problem, but I just thought it was because she didn't know how to operate the car. Once I get it fixed, how do I know the lights wont mysteriously go off again?! I'm very disappointed in all the electrical problems with this vehicle, and this is the last straw. (after only 38K miles the fuel tank gauge stopped working. At 60K miles the car was having issues with overheating because the fans wouldn't turn on. At 75K miles a clunking noise started coming from the differential. It's a stock car mind you. And now at 85K miles 2008, the headlights wont turn on. GM simply won't stand behind the car, and so I've been left to figure it out on my own. So much for buying my dream car. It seems more like a nightmare.)

- Hollywood, CA, USA

problem #2

Apr 302010

Corvette

  • 8,000 miles
I've had repeated failures that have required multiple repairs 1. engine knocking- repeated repairs, upper end replaced knocking and engine roughness still there 2. transmission- failure of clutch plates, replaced problem not resolved, transmission slipping is increasing 3. electrical system failure: The electrical system completely shuts down, nothing operates even the hazard warning lights- this has occurred a minimum of 8 times. Relays, switches wiring battery get extremely hot until battery bleeds down. High potential for electrical fires and car cessation of operations have left us in perilous conditions on multiple occasions.

- Woodland Hills, CA, USA

problem #1

Feb 182013

Corvette

  • 18,000 miles
Vehicle taken to dealer for excessive valve noise. Inspection showed excessive wear of valves and valve guides...out of specs. Engine heads and valves to be replaced under warranty.

- Xenia, OH, USA

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