2009 c6 zo6 engine disaster. 72,000 miles
 

If it is under warranty with GMPP, you should basically expect a new motor, depending on the amount of damage. They need to see the extent of the cam damage and how much metal it spit into the motor.

A fairly common failure on LS motors.

I too am in Dallas and am familiar with Reliable. Not for the reasons you are.

I am with Unreal... You should demand a complete Long block. The likely culprit was the cam itself w the soft lobes which in turn caused the lifter(s) to fail. It is pretty common. Do not be passive on this. Reliable is going to attempt to nickel and dime you, kinda like an insurance company when they are negotiating.

Depending on how Warranty reads YOU are in the drivers seat. If need be have a 3rd party go in and explain the whole soft lobe thing.

The ONLY ding that I can see is the mileage. Tell them you want to see the cam lobes and failed lifters. It will certainly tell the story.

Just my .02

New engine, be prepared to fight. GMEPP will try to deny, if they can. Good luck!:thumbs:

Did they actually open up the engine to determine that? When my engine blew, the dealership did basically 0 to diagnose it properly. This led to a 100% wrong diagnosis. You should ask them if they tore down the car properly, and I don't mean just popping the hood and looking in.

Make sure you tell them you used the recommended oil!!! Seriously!!!

Also request new oil lines and dry sump to be removed and cleaned.

Fairly common if the diagnosis is correct...probably the second most common failure after the excessive guide wear issues. You'll most likely require a new engine if the damage is extensive enough; which will also require new oil cooler and lines, and I would push for new sump and lines...but as mentioned above, the sump itself can be disassembled and cleaned.

Dealer shouldn't fight you, as it is just money in their pocket. If anything they should be on your side trying to milk as much money out of GMPP as possible.

Cam/lifter failure and rod failure are definately battling it out for the #2 most common failure to take these motors out after guides/valves.

Good thing you got the extended warranty. But it would have been cheaper to fix the valves/heads. Staying with the original heads/valves with that mileage is a big risk. But now it looks like a new engine for the car, which will have a lot less miles on it.

A new block for me turned out to be around $14500

Once again it happens and GM tries to wiggle out! If you loose go to your state DMV and let them know your situation and let this forum no your out come. If you think GM have problems now you should have been buying there shit in 89 i had two Chevrolets fail and i ate the repairs.

You have a warranty .............. stop worrying. You have likely paid for and desrve a new motor with all the warranty premiums you have paid !!!

Get some pictures for us.

:cheers:
DH

This failure mode has nothing to do with "the valve guide / head fix" topic.

The OP's biggest challenge at this point is if they push to just replace the cam and failed lifter(s) and nothing more, along with the standard stealership crappy service depertment behavior like cracking the fenders, greasing up the interior, forgetting to refill the trans if they replace the engine, not replacing or properly cleaning the tank and lines, etc. :cheers:

OEM LS7 motors are garbage to begin with, and they know this because they have an enormous warranty claim database to refer from. But at least you'll have a good base to start from.

Once again another dealer basically popping the hood and guessing what's wrong. Glad that you said yes to tear it down! You'll likely get an engine.