I know they had to have updated my PCM to clear the codes, but that's all "internal" information unless there is a subpenoa, and there will be... You have to scrape all of the carbon off of them, they are there..it looks like. 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. If this happens car becomes uncontrollable with oil and coolant flooding out of motor. For a better experience, please enable JavaScript in your browser before proceeding. That is hog wash because should I had done that, I would probably still had to pay their exorbitant labor costs and still not be covered on this serious engine defect. I decided to bring it to a well know corvette speciality shop near me. Any modification to the engine of GM vehicles voids the powertrain coverage portion of the vehicle warranty. For this NHTSA complaint data, the only way is to read through the comments below. Any quick search of the web will show that this car engine, the LS2 or 6.2 L engine has had a defect that GM has denied over the years and fails to stand behind after warranty; crank shaft pulley wobble and worn rubber gaskets on the harmonic balancer of the 2006 model year. We wanted to do the work on the vehicle but we couldn't do it under warranty so the customer took it to another shop. And like with most things, I think the truth is probably somewhere in the middle. •If the customer indicated a concern with engine noise, warm the vehicle to operating temperature and compare it to similar vehicles. Again, nice try. After finding out that, After finding out that my motor was blown and it had to be replaced a friend and I decided to go take a look at my blown motor at, September 8th 2010 – Time to call GM’s corporate headquarters and open a case, After a long weekend of distress I wanted answers! The told me about the valve guide issue that has been linked to the LS7 heads. The C6 generation Z06 was released as a 2006 model and sold until 2013. The failure mileage was 6,100. If you have had issues with your valves… I dont know how to make it clear to you, but all of the work was done by Frank's Vettes. Awesome, now comes the question of if it could wait like a month or so, because I would have to save up a bit of money to have the install, because I don't really wanna rip apart the car I just got and potentially fuck it up since I have very very basic knowledge on that. The valve guides were extremely worn on his car causing the valve failure. In fact, I believe GM has re-designed the part so what does that tell you. The owner comments describe problems respondents experienced with this vehicle. They are the residue of centralized bureaucracy, of government by a self-anointed elite. The only reason why the PCM was replaced was because the dealership said it needed to be replaced along with the intake or the new engine warranty would be invalid. Due to his failure and many others like it, I removed my heads and inspected. I had an 06 mustang gt, totaled it when a group of deer jumped the fence directly Infront of my car, hit 3 of them, so I felt like this would be a lovely replacement. Is the Check Engine Light ON? Front ¾ vehicle photos © 1986-2018 Autodata, Inc. dba Chrome Data. Back in April of 2010 I was finally able to buy the car of my dreams (or so I thought). are trademarks of Autobeef LLC, All rights reserved. To make a … A class action suit has been filed against General Motors by a group of Chevrolet Corvette Z06 owners due to some problems with the LS7 engine, … Have you experienced any concerns or difficulties that would indicate an engine problem? The week of October 3rd 2010 – Convincing GM to take another look at my PCM codes, Jessica at GM was out on vacation for a very long time so now my case is transferred to another GM specialist, Robin. Believe me, I would have loved to use the old PCM because it would have saved money. Engine was found to have valve guide clearances extremely out of allowable specs. For more information on how we collect and use this information, please review our Privacy Policy. and its was cost $15,600. At this point I felt like the dealership was lying to me and they just didn’t want to own up to the cost of a new z06 engine which is around $15,600 plus labor. It's never missed an oil change and has been taken in for every recall that has been issued. You may file your own complaint by calling the NHTSA Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153. I believe I have it, I did a whole vehicle history report on my car. Now I had to prove this to GM. This data is from the NHTSA — the US gov't agency tasked with vehicle safety. The only problem I had was the valve guide wear. Z06 7.0L engine valve guides out of spec after 12K miles. Why did, The week of September 12th 2010 – Visit with Frank Coleman at Frank’s Vettes, I decided to go talk to my trustworthy mechanic, Frank Coleman at. You said you had a Certification...was it in writing? 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. General Motors has reviewed paid warranty claims for valve and head replacement for the Corvette LS7 and the numbers of incidents are very low with no indication of an excessive wear issue. Scared to see the bill tomorrow. 2006-2010 C6 z06 Valve Issue See the attachment! Some valve train noise may be evident, which is a by product of the performance nature of this engine. Quickly changed the engine? the valve springs were updated for the 04 model year so there must have been some kind of problem with springs used in 02/03. This is due to a manufacturer defect in machining and or materials. If the concern is noise related, ask for a description of the type of noise heard? If there is excessive wear (beyond the indicated service limit) after the investigation is completed, GM will cover the inspection and repair expense for vehicles covered under the Powertrain Limited warranty. http://www.measuredup.com/support-ticket/Munday-Chevrolet-GM-didnt-honor-my-warranty-28413, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. •If the customer’s sole concern is based on information collected over the internet, with no verifiable symptom, and the customer insists the engine be disassembled and verified, it should be explained to the customer that any charges for the inspection would be at the customers expense. Both the mechanics that looked at my car were impressed with how little wear the engine had on it. Just received hptuners, can anyone Take a look at my custom tune. IF they want the engine they can still have it. But not all Z06 Corvettes from the sixth generation are affected, and GM narrowed the issue down to Corvettes built between 2008 and 2011—roughly less than 10 percent of Z06 models. One thing keeps me from getting totally upset by GM... Why was the PCM replaced? 2006 z06 corvette engine was making an unusual noise. Previous 2008 Corvette (unknown VIN but can be found at dealership where serviced had this same problem leading to the above mentioned failure and uncontrolled vehicle condition. GM reported back that the program in the PCM (power control module) had been modified and GM denied the warranty claim. On September 2nd 2010 I thought I would take a cruise and go play racquetball, but my plans were soon altered. If you want a track car the z06 is a great starting platform. I had a complete stock car and the motor blows up and GM wouldn't take responsibility. Robin said that they would review my case and give me a call in a few days to follow up with me. Saw one guy on a forum with 290k on his with proper maintenance, though I'm clearly not expecting that. After I bought my car I took my car to the dealership because there was a recall on the differential fluid used. Lost power steering, power brakes, and skidded when the engine locked up. Has anyone experienced engine problems with their 2006, 2007, or 2008 Z06 with the 505HP engine? He added mild-to-wild to the car because his wife bitched just as much as you do. The PCM was replaced when and why? The LS7 is a high performance motor and as such is built with an emphasis on power while retaining the lowest possible noise and vibration characteristics. #13-06-01-001: Information on Customer Questions About Valve Guide Wear – (Jan 14, 2013) Subject: Information on Customer Questions About Valve Guide Wear Models: 2006-2013 Chevrolet Corvette 427, Corvette Z06 Equipped with 7.0L V8 Engine (RPO LS7) Customer Concern. 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