Nine problems related to engine failure have been reported for the 2007 Chevrolet Corvette. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Chevrolet Corvette based on all problems reported for the 2007 Corvette.
�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.
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. . Read more...
I am extremely 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 causing a loss of control of the vehicle due to the engine stopping abruptly. 88% of the Corvette forum members who have had their cylinder heads tested for excessive valve guide wear, were out of service specifications. . Read more...
Wiggle test on all valves showed all exhaust valves with excessive guid where. . . . Safety issue. . . . !!! this can and has led to catastrophic engine failure at freeway speeds. . . . . . .
Abnormal valve guide wear in cylinder heads considering age and mileage of vehicle. Potential catastrophic engine failure from dropped valve if not addressed. Chevrolet should fix whether vehicle still in warranty or not as is believed to be poor quality control resulting in machining errors.
While driving on the road at aprox. 45mph, my car exhaust valve dropped in the motor causing immediate engine failure also creating power steering and power brakes to stop working immediately. This same exhaust valve issues occurred with many other gm Corvettes with the 7. 0liter z06 motor.
#1 azdanz06's avatarazdanz06 , 01-06-2015 11:27 am link to file complaint: https://www-odi. Nhtsa. Dot. Gov/vehicl. . . Nt/index. Xhtml I just filed a complaint with the NHTSA 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. . Read more...
Submission from constituent re repairs on his 2007 Chevrolet Corvette (the engine "dropped a valve") the consumer was informed, the entire engine needed to be replaced at a cost of $18,722. Instead of replacing the engine, at no cost to the consumer, general motors offered to pick up 45% of the cost, leaving the consumer to pay the balance of $10,630. The consumer stated gm issued an internal bulletin as far back as February 2008, that showed they were aware of the z06 engine failures and short life expectancy.
On 09/03/08 I brought my car to a chevy dealer for noisy lifters , they replaced the rocker arms at the #8 cylinder which made the lifter noise not as loud. On 11/07/08 as I got onto the thruway , I accelerated in second gear to get into the flow of traffic ,I pushed in the clutch to shift into third gear . As I released the clutch with no throttle applied , the car began to shake very badly . I then pushed the clutch pedal in looked at my gauges which were all dead. Then I looked into the rear view mirror and there was a large cloud of white smoke behind me . Then I had the car towed to the chevy dealership and they called and informed me the next day that there was a hole in the engine block at the #8 cylinder . The dealership and gm refuse to repair the car under warranty stating that the car is used competitively of which it is not . I have found out that there have been many major engine failures with the z06 Corvette . Gm has a program for 2007 and 2008 z06 cars that have major engine failures where they send the car back to the factory where they repair or replace the engine . The document id # 2067130 and #pip4132b of which I have a copy of . If there was not a problem with these engines they would not have the program in place .