2007 Chevrolet Corvette Z06 engine problems

Filed Jul 8, 2018 · Engine · 64,000 miles · TX

The head issue valve guide on the heads was completely out of spec....have repaired car twice because of this issue '.

Filed Mar 23, 2018 · Engine · 88,000 miles · TX

Dangerous conditions. Exhaust valve design causes ear that eventually breaks exhaust valve and destroys engine. Exhaust valve loose enough to break and cause engine damage, possible fire and/or flammable fluid leakage. Https://www.youtube.com/watch?v=wtoa3vlgoes

Filed Feb 4, 2018 · Engine · 10,350 miles · IN

My 10,000 mile 2007 heads are at ahp for rebuilding. They reported back that 1 exhaust and 3 intake guides were worn past the service limit. Several others were close or at the limit.

Filed Nov 22, 2017 · Engine · 59,000 miles · CA

'takata recall' just bought a 2007 z06 corvette and lately I've been seeing a lot of complaints about the valve stems breaking and causing catastrophic engine failture causing the power steering and breaks to fail so now I have to pay 5000.00 + to get it serviced and every 10k miles do the same thing because the valve stem and guides get hot and start to wiggle

Filed Aug 19, 2017 · Engine · 21,000 miles · TX

At 65mph, driving down the highway, the car made a horrendous loud clattering sound and the motor locked up. Pulled to the side of the road to see oil pouring out the side of the engine block, where the valve was spit out - causing a huge hole in the side of the motor

Filed Jun 2, 2017 · Engine · 60,000 miles · GA

My 2007 chevrolet corvette z06 droped a valve while I was driving home. I was on a regular 45mph speed limit road in traffic when I realized the car was losing power and quickly pulled on the side of the road because there were cars in front and behind me. Luckily nobody was hurt but if I had been on a highway in the middle lane someone could have lost their life including me. From the second I realized the car was losing power to the point the engine shut off was a matter of 5 seconds maybe. After doing much research online I found out there is a very common problem with valve guides being out of spec in this model corvette.

Filed May 31, 2017 · Engine · 42,000 miles · TX

#1 azdanz06's avatarazdanz06 , 01-06-2015 11:27 am link to file complaint: https://www-odi.the federal safety agency.dot.gov/vehicl...nt/index.xhtml I just filed a complaint with the federal safety agency about the out of spec valve guide issue, I would encourage everyone else to do so as well, maybe just maybe it will force gm to finally do a recall and qc on parts. Here is my complaint: 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, 88% of the corvette forum members who have had their cylinder heads tested for excessive valve guide wear, were out of service specifications. Source: https://www.corvetteforum.com/forums...-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. #2 whis9's avatarwhis9 , 01-06-2015 11:39 am

Filed May 4, 2017 · Engine · 9,655 miles · AL · crash

Valve broke and locked up engine. Car skidded off highway and was destroyed. I was driving on interstate and it was raining. No indication of problem before event

Filed Feb 17, 2016 · Engine · 24,000 miles · WA

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: http://www.corvetteforum.com/forums/...-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.

Filed Feb 17, 2016 · Engine · 500 miles · CA

I've read several different posts about people with 2007 corvettes having problems with valves and dropping valves and losing control when this because of the power steering and brakes not working when this happens. I bought my 2007 corvette z06 new back in 2007 and I've always noticed valve noise and lately it seems a little louder. I hear the valve noise mostly driving it in town. I'm not sure if I should just wait for the valves to fail and take my chances or pay to have someone to pull the heads and check all the valves and repair any ones that are out of specification. So I think it's gm's responsibility to do a recall for this because in my opinion this is a defect and it would be very dangerous to drop a valve and lose control of my car. I spent a lot of money on this car and I just don't feel I should need to pay anymore money to diagnose and fix this problem. My headlights stopped working tonight and luckily there is a recall for that problem.