general problems of the 2006 Chevrolet Corvette

We were driving 55 and the car stalled. This has happened several times. Been at dealer and the codes show fine they replaced what they thought was issue and it still does this. Very scary.

Happened twice within a day. The main electric fan on the radiator stopped working and the car overheated. Once at idle, was able to shut the car off safely. The second time, there was traffic on the highway, and the fan stopped working and the car started to overheat. Had to shut the car off and wait for it to cool down on the side of the road. When I got the car home, I found the electrical connector of the fan to be melted and fused together. There was no indicator that the fan would stop running prior to the engine overheating.

While driving at ~45mph and 3500 rpm, an exhaust valve dropped on the pass side cylinder head. Vehicle lost motive power. There was a hole in the block on the passenger side and the vehicle needed a long block replacement. The vehicle had 79,000 miles.

2006 Chevrolet Corvette, consumer writes in regard to defective crankshaft pully.

Chevrolet Corvette. Consumer writes in regards to a defective crankshaft pully. The consumer requested to have the vehicle's repair cost covered in full by the manufacturer.

I was driving in s 35 mph zone and it changed to 45 mph. I was in 2 or 3rd gear and has just started up a slight incline and I was increasing speed when the car made a sudden jerk and loud almost a bang. I depressed the clutch and it stayed on the floor. I though that the clutch had came apart and I pulled the pedal up to see what was going on. The engine at that point was running very rough and would not hold speed or accelerate. I pulled into a parking lot and got my wife to pick me up. I then got my pickup and trailer and took the car to classic Chevrolet. They found where the valve had dropped into the cylinder and caused damage to the piston and rod. I looked at the engine while tore down and noticed what appeared to me to be a crack in the cylinder wall and pointed it out, the forman said the had checked it and didn't feel that it was a crack. They advised me to get a new head and have the other head worked on as well as a piston, etc. I did that and had the car repaired. When the car jerked it also affected the pressure plate so I had that replaced. After I got the car back I noticed it was smoking white vapor whenever I started it. I took it back to the dealership and the tested it and sure enough it was a crack in the cylinder. I then had the motor replaced and the dealership was very fair and credited the earlier work against the motor. When the motor let loose, the car locked the back wheels and the car behind me had to make a rather quick stop and Dodge me so as not to have a wreck.

I recently had my valves tested by a local shop since ive heard from other owners that the ls7 valves drop at any given time. I had two valves out of specs and have to get it fixed in order to save engine from future damage. My car currently has 52,241 miles.

When driving the vehicle, I can hear, as it seems to me, excessive valve train noise.

Z06 7. 0l engine valve guides out of spec after 12k miles. This is due to a manufacturer defect in machining and or materials. Failure of the guides results in dropping a valve and catastrophic engine damage. As a catastrophic failure often causes the rear wheels to lock and/or the engine to oil down the road and possibly the rear tires which could lead to an accident or injury to others. This is an extreme safety concern.

Valve rattle, not driving vehicle to keep from dropping valve. . . . . . Costs $4k for repair to heads. . . . 31000 miles. . . If I drive it and drop valve, will cost $18k to replace engine assembly. . . . . Long term value of vehicle decreases with non-matching numbers vehicle. One helluva way to treat customers that spend $85k on a vehicle.

Valve guides out of wear with possible failure including valve to drop inside combustion chamber.

The contact owns a 2006 Chevrolet Corvette. While driving at any speed, the engine shook and the harmonic balancer wobbled. The failure recurred several times. The vehicle was taken to the dealer where it was diagnosed that the harmonic balancer needed to be repaired. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 6,100.

The contact owned a 2006 Chevrolet Corvette. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The vehicle was towed to the dealer where it was diagnosed that the exhaust valve had fractured in cylinder # 6, damaging the piston, crankshaft, and engine block. The dealer informed the contact that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 34,678.

Engine was found to have valve guide clearances extremely out of allowable specs. Problem was detected by american heritage performance, a company that specializes in these types of engines. If the problem had not been corrected and a failure had occurred, it could have locked up the engine causing the rear wheel to lock up and send the car out of control.

I was driving down a busy street at 35 mph in heavy traffic and heard a metallic sound. The engine locked up and the rear end skidded till I put in the clutch and coasted to a parking lot. I was aware of the valve problems so I took the head off the engine and sure enough dropped a valve taking out the piston and breaking the block. I took the car to kool chevy and was told in would cost 22,000 dollars to fix it. Kool told me gm would not cover any of it because the car was out of warranty at 59,000 mile on the car. I could not afford to fix the car so I sold the car as is losing more than half what the car was worth. I am still sick about this a year later as I will never be able to have another car like this. I feel like gm should have worked with me as this was a known problem with the ls7 engine. If this would have happened at highway speeds it would have been a lot worse than it was. Lost power steering, power brakes, and skidded when the engine locked up.

The cylinder heads at 69k miles were checked due to excessive valve train noise and the vavle guides and one intake valve were found to have clearance more than double the service tolerance.

I have 2006 chevy Corvette what a joke this car has been. I have had a new engine I have spent 40,000 on repairs to this car its never ending. I have replaced everything on it twice. I just got it out of the shop yesterday again for the thousands time and now the traction control light the brake light the tire light on the dash is on. This car is a nightmare. I have paid so much money to never ending drama. Help I beg you. The car has caught on fire due to the clutch fluid leaking everything you can think has has been replaced. Talk about a lemon. No lemon law will help.

Ls7 engine makes loud "ticking" sound at idle to ~ 2,000 rpm caused by defective cylinder heads which were improperly machined by gm's subcontractor. Local Chevrolet dealers said the noise is "normal". . . But when heads opened and valve and valve guides measured, excessive valve and valve guide wear documented. Local gm dealer & $4,350 gm protection plan (extended warranty that I had to buy to cover this $5,000 repair) refused to repair so I had to drive it 5 hours to another gm dealer to get it repaired under my gmpp extended warranty. Many other 2006 to 2015 Corvette owners have experienced this same excessive valve wear including some owners valves breaking and destroying their $16,000 ls7 motors while spewing oil and metal everywhere. This also resulted in a fear of driving this car, a significant "diminishment of value" of this vehicle, and complicated its resale (buyers had heard about these catastrophic ls7 motor failures.

My son was driving and just completed a turn when he applied the accelerator and the engine stopped abruptly. There was a cloud of smoke and then a small fire underneath the car from the oil that came out from a baseball size hole in the side of the block below the number 8 cylinder. Upon further investigation, a valve in the number 8 cylinder snapped below the valve guide dropping the head of the valve onto the piston which caused the failure. I have the engine available for inspection.

According to Corvette forum, this is another widespread problem- the harmonic-balancer becomes warped and requires replacement. . . If not done timely, other "parts" could be negatively impacted as well. . .

Cruising at 50 mph on feeder ramp and dic showed engine power reduced for 2 seconds then boom!.

When driving the vehicle the motor locked up and caused a massive oil spill due to the engine exploding. . Root cause was due to a dropped valve which caused the whole engine to break into pieces. This is a well documented problem with the ls7 motor from gm.

2006 Chevrolet Corvette. Consumer states loss of headlamps when engine heats up.

2006 Chevrolet Corvette z06 oil line related engine fire customer states that this seems to be a known problem* the consumer stated on June 8, 2007 his new car sustained a 3 point engine fire related to an engine oil line defect. The consumer he stated was accompanied by experienced gm certified mechanic who assessed for unrelated repairs and warranty work. The consumer stated the mechanic made an analysis as to what caused the fire. Analysis revealed a defective oil line at the crimped- on rubber hose to metal interface which conducts oil to an external cooler.