[snowolf_rs]

I went back by today and kept asking if they could tell me what exactly failed, but they kept saying they couldnt tell me without taking the engine out and charging me for it. The first engine was bone stock and i had it less than 2 months. This time around i had ZZP catted downpipe, ZZP intake tube, jacfab valve, and was tuned by danytech. Running 93 octane and dexos 5w30 oil

[Evil-Bee-NH]

Ask for the original engine replacements invoice if they ask why say insurance purposes. It should list what failed not saying it's gonna be the same thing but will give you a good idea atleast.

[Evil-Bee-NH]

Originally Posted by Start The Machine

I know right. Who gets the oil wrong? Thank you for the laughs. I like how you give him credit for the correct can Lol.

Well their cans are really nice i had one on my 5th gen thing worked flawlessly. For some reason they just think the LTG is the same as a Turbo V6 build. Worse is they have free R&D videos from Mishimoto and they can't be helped to admit they need to adjust things.

[snowolf_rs]

Originally Posted by Evil-Bee-NH

Ask for the original engine replacements invoice if they ask why say insurance purposes. It should list what failed not saying it's gonna be the same thing but will give you a good idea atleast.

I have the original invoice, thats how i know its the same thing. I showed it to the service manager, and thats when he told me it was the exact same thing and that my tune didnt cause it.

[Evil-Bee-NH]

Originally Posted by snowolf_rs

I have the original invoice, thats how i know its the same thing. I showed it to the service manager, and thats when he told me it was the exact same thing and that my tune didnt cause it.

So why did they decide not to warranty it this time? it's a pre-existing condition and it's been verified it has nothing to do with your tune. I do understand that by tuning you voided the warranty but clearly your dealership is one of those you touch anything it's all on you types.

[snowolf_rs]

Originally Posted by Evil-Bee-NH

So why did they decide not to warranty it this time? it's a pre-existing condition and it's been verified it has nothing to do with your tune. I do understand that by tuning you voided the warranty but clearly your dealership is one of those you touch anything it's all on you types.

They claim that they sent GM the logs from my ECM, and that GM said my warranty is automatically voided because i modified the stock files. Doesnt matter that the same thing happened when stock, theyre trying to say i caused it this time by putting more stress on the engine than stock, and that GM wouldnt let them cover it if they wanted to

[Evil-Bee-NH]

Originally Posted by snowolf_rs

They claim that they sent GM the logs from my ECM, and that GM said my warranty is automatically voided because i modified the stock files. Doesnt matter that the same thing happened when stock, theyre trying to say i caused it this time by putting more stress on the engine than stock, and that GM wouldnt let them cover it if they wanted to

Lawl not sure which to believe but if it's a 2nd engine repair i imagine GM requested the ECM logs this time around. Just them saying those simple bolt-ons and an ecm tune put to much stress on the engine is pathetic unless they're admitting there's a manufacturer qc issue lol. We already know the QC on the LTGs is piss poor tons of missing clips and bolts on 60% of them.

[snowolf_rs]

Well, contacted GM and explained everything, and they also refused to cover the car. So looks like im gonna bite the bullet and go forged internals, then continue the build from there.

[Evil-Bee-NH]

That sucks man. Atleast with forged internals your safe for the long haul.

[Vtor_ZL1]

Don't forget to have injectors flow tested.

[6th_gen_gino]

Originally Posted by Vtor_ZL1

Don't forget to have injectors flow tested.

Agreed

[PDXSSCE]

Originally Posted by Evil-Bee-NH

...We already know the QC on the LTGs is piss poor tons of missing clips and bolts on 60% of them.

When shopping for a pre-owned LTG, what can someone check to mitigate the possibility of experiencing catastrophic failure?

[Evil-Bee-NH]

Originally Posted by PDXSSCE

When shopping for a pre-owned LTG, what can someone check to mitigate the possibility of experiencing catastrophic failure?

There are several things that should be asked what the dealership your using says should be your go somewhere else or stay with them decision. Here's a few things I've compiled to ask if I was to buy a used LTG.

1. Was it a rental? Yes I know most rentals were V6's but there's always a possibility.

2. Was it at any time modified or tuned? They can check the flash counter for this there are some ghost tunes but if they checked hard enough they could pick-up obvious changes.

3. What's the warranty? I'd demand factory warranty extension but that's just me because your inherting someone else's possible mistakes.

4. Check the timing cover for oil seap. Some of these timing cover gaskets are poorly QC'd

5. If it's an A8 demand the TSB be performed on the car before signing also if it's 10k plus miles i'd have them check for TC damage or have it in the paperwork to be covered if shudder returns. The new GM 2019 Fix is a Band-Aid fluid excuse again but there's reports they are flashing TCM calibrations.

6. Do your own inspection of suspension and undercar parts and underhood parts.

[snowolf_rs]

Im for sure going to get the injectors looked at. I do have a question though, in going this route with forged internals and being able to make more power, around what could i expect to make before hitting another barrier like fueling issues, etc? Right now i would like to add a bigger throttle body and intercooler, and go either ZFR or Z54 turbo later in the year, but im wondering if i would have to change other things in the car to make that work fully