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I hope I am in the right discussion area. I am new to this and joined last week and I want to keep everyone in the loop, and any positive help is appreciated. I recently purchased a 2013 427, 60th Anniversary Collectors Edition from CarMax. I love the car. I bought the car in February and put 3,000 miles on it and it now has a bit over 9,000 miles. I had the Chevy dealer inspect it thoroughly before the purchase and they said the car was in great shape. One of the main reasons I was happy with the purchase was CarMax offered a bumper to bumper warranty. Its in with same Chevrolet dealer now diagnosing a low oil pressure issue. They checked the oil and found shavings in the motor and they need to tear down to diagnose further. I know the warranty company is a 3rd party administrator, but I was told to work with the service manager at the Portland CarMax. Chevy service manager was concerned about tear down and coverage and told me he didn't get a good feeling from CarMax service manager. I went to Chevy dealership on Friday and had both the service managers (CarMax and Chevy) on phone together with me. I flat out asked the CarMax manager on the phone that if there was no (misuse or abuse) would there be an issue with coverage. He stated on the phone there shouldn't be. Well, I am allowing Chevy dealership to tear down motor, approx. $1500. A new motor around $12,000. If it does need a motor, chevy service managers will not put a re-manufactured motor in there, they said they would refuse the job, because they felt the car was practically brand new (2013 with low miles). I just hope everyone I am working with is honest, and all goes well, and I can afford to keep my baby.. Thanks, Ray
OK, Its been awhile, but I have my 427 back!! The total bill was a little over $19,000. It was expected to be around $13,000, but with the help of this web site and some discussion with the mechanic and then viewing each crank rod, he knew we needed to order the rods. At $750 each for titanium, it brought the total up $6,000. They also replaced the intake manifold. The mechanic noticed the the coating on the new rods was a little different than the one on the original rods, he wasn't sure why or if it meant anything. With the cost for some fluids, front end alignment and few miscellaneous things, my out of pocket was $260. I was very very pleased about that. I drove the car home last night, it felt smooth and strong. I thought I would have had some other minor issues with all that the mechanic had to do to get the motor in and out, but so far nothing. I was hoping the AC was good and cold because it has been extremely warm her in southern Maine and it was. The oil pressure is where it should be, temps look good, car shifts the same and steers the same. I commend the service department at the chevy dealership and the CarMax warranty program. I hope this is just a 1 time burp and that I can enjoy thousands of miles out of her. They wanted me to bring car back at 500 miles, but I plan to bring it in around 250 or 300, and then 500 after that. Chevy is giving me 24 months, 24,000 miles for the warranty on their work and parts. After a couple thousand miles I will send the oil out for analysis. This was a bit stressful for me at times, so if anyone on this site ever needs support with something like this, please feel to reach out to me. I will continue to post over the next few months. I keep my fingers crossed and thank everyone here. Pic was taken, the night before my birthday in June, and the day before it entered the shop for repair. Ray
I used a CarMax warranty at a Subaru dealer for warranty work on an Outback that I bought at Carmax and had no problems at all. The Subaru service guy told me they do work on Carmax cars often and that they are easy to work with. He said the only negative is that you lose a day or two because they have to submit their findings to Carmax for approval before proceeding with the work. Other than that, no worries.
Good chance it is the rods. The rods can rub against each other as the coating wears off. This sends titanium through the motor and into the bearings. Oil pressure is then lost. It is a known issue on that particular year.
Good luck and don't give in. They owe you a motor, or at a minimum a complete rebuild.
I hope I am in the right discussion area. I am new to this and joined last week and I want to keep everyone in the loop, and any positive help is appreciated. I recently purchased a 2013 427, 60th Anniversary Collectors Edition from CarMax. I love the car. I bought the car in February and put 3,000 miles on it and it now has a bit over 9,000 miles. I had the Chevy dealer inspect it thoroughly before the purchase and they said the car was in great shape. One of the main reasons I was happy with the purchase was CarMax offered a bumper to bumper warranty. Its in with same Chevrolet dealer now diagnosing a low oil pressure issue. They checked the oil and found shavings in the motor and they need to tear down to diagnose further. I know the warranty company is a 3rd party administrator, but I was told to work with the service manager at the Portland CarMax. Chevy service manager was concerned about tear down and coverage and told me he didn't get a good feeling from CarMax service manager. I went to Chevy dealership on Friday and had both the service managers (CarMax and Chevy) on phone together with me. I flat out asked the CarMax manager on the phone that if there was no (misuse or abuse) would there be an issue with coverage. He stated on the phone there shouldn't be. Well, I am allowing Chevy dealership to tear down motor, approx. $1500. A new motor around $12,000. If it does need a motor, chevy service managers will not put a re-manufactured motor in there, they said they would refuse the job, because they felt the car was practically brand new (2013 with low miles). I just hope everyone I am working with is honest, and all goes well, and I can afford to keep my baby.. Thanks, Ray
I hate to hear this, so far I have not had any engine problems. What's the last four digits of your VIN #? Mine is 1665 with 6300 miles. Another guy on here had a 2013 427 that lost his motor with bad rod bearings last fall.
Last edited by 427C62013A; 06-25-2018 at 05:50 PM.
I hate to hear this. What's the last four digits of your VIN #? Mine is 1665 with 6300 miles. Another guy on here had a 2013 427 that lost his motor with bad rod bearings last fall.
Not all CE LS7s had this problem, like the well known valve failures it happened w/ some, not others.
w/ CEs it happened it was always on low mile vehicles ~<10K.
If one does go due to CRs as Mordeth cites, unfortunately it isn't a surprise to anyone familiar w/ LS7s.
Good news you bought a warranty and if LS7's stock w/ no tune, it's a new engine.
Have heard nothing but positive comments re Carmax & their standing behind products/warranty.
Keep thread updated, have a notion a new LS7, installed, will cost a good deal more than $12K.
IF a new engine's installed it'll still have suspect valve train so acquiring rebuilt heads is a wise tack.
Rebuilt heads can be ordered with better guides/valves, reducing likelihood of a failure.
If it ends up being the rods or some kind of catastrophic internal failure then they will also need to replace all of the oil lines, replace the oil cooler, replace the oil pump and remove and flush the dry sump tank. The titatium and metal gets EVERYWHERE.
Speaking from first hand experience, since the car is out of the 36 month warranty there is no GM participation in the fix. GM Customer Service will listen to you and file an incident report but that will be the end of their interest. Very disappointing the position that GM takes on known issues and low milage failures but that is what we have to live with. The fix is out of your pocket.
Speaking from first hand experience, since the car is out of the 36 month warranty there is no GM participation in the fix. GM Customer Service will listen to you and file an incident report but that will be the end of their interest. Very disappointing the position that GM takes on known issues and low milage failures but that is what we have to live with. The fix is out of your pocket.
Speaking from first hand experience, since the car is out of the 36 month warranty there is no GM participation in the fix. GM Customer Service will listen to you and file an incident report but that will be the end of their interest. Very disappointing the position that GM takes on known issues and low milage failures but that is what we have to live with. The fix is out of your pocket.
The OP stated that he has a warranty thru CarMax, he should be covered.
Speaking from first hand experience, since the car is out of the 36 month warranty there is no GM participation in the fix. GM Customer Service will listen to you and file an incident report but that will be the end of their interest. Very disappointing the position that GM takes on known issues and low milage failures but that is what we have to live with. The fix is out of your pocket.
Wouldn't it be 60 months for the powertrain warranty?
What does GM owe someone who bought an out-of-warranty vehicle from a used car dealer?
I really appreciate the response. It definitely makes me feel better. Thanks
Not long ago, can't recall if it is was in C7 Gen or C6, but there was a CarMax engine blow. It was fully covered by CarMax. That was the same person and time, "we" (me) learned that CarMax also allows service at other places such as dealers. I think it was stated there are two levels of warranty provided by CarMax (I could be wrong), but whichever it was, the total cost was covered, and the work was not done by CarMax---to their credit to know Clint's quote ("a man has to know his limitations")
Good luck, tell us how it all turns out for you.
Note: Well lucky me! I saved the thread. Here it is, it IS about a C6. And there does seem to be more than one level of warranty coverage. The one quoted in this thread by the OP is Max Care by The Warranty Group, whoever they are. Hope it helps you!
I have seen too many of these threads concerning the 427 motor. In the Z06 section this comes up even more often. It is one of the reasons I went with a GS. The uneasy feeling of waiting for the 427 to pop would of ruined the experience of owning the car for me. I know getting the heads done is always an option on these, but I never wanted to have to consider going that route either.
Not long ago, can't recall if it is was in C7 Gen or C6, but there was a CarMax engine blow. It was fully covered by CarMax. That was the same person and time, "we" (me) learned that CarMax also allows service at other places such as dealers. I think it was stated there are two levels of warranty provided by CarMax (I could be wrong), but whichever it was, the total cost was covered, and the work was not done by CarMax---to their credit to know Clint's quote ("a man has to know his limitations")
Good luck, tell us how it all turns out for you.
Note: Well lucky me! I saved the thread. Here it is, it IS about a C6. And there does seem to be more than one level of warranty coverage. The one quoted in this thread by the OP is Max Care by The Warranty Group, whoever they are. Hope it helps you!
Thankyou for all the information and the thread. I reviewed my CarMax service agreement last night and it seams pretty straight forward. I have seen good reviews. Thanks Again!!
06-25-2018, 09:08 AM
C6 427 60th Anniversary - motor failure
