GM 2014 SIlverado 6.2L Cracked Push Rod - Help needed

[m3n00b]

There is no way the tune caused that hard part failure. This is probably contributed more to the lifter than anything. This is what happens when you design a complicated system with more moving parts, things fail. GM knows this, and the tune is their way of getting out of fixing it.

They need to learn that this isn't how you keep people loyal to the brand which is the reason 90% of truck buyers choose their next truck.

 

-tapa

[Daryl LBZ]

They need to learn that this isn't how you keep people loyal to the brand which is the reason 90% of truck buyers choose their next truck.

 

-tapa

I just find it ridiculous that they engineer this complicated system, and when something fails they want to blame it on any small thing they can find. If it wasn't the tune they would be trying to find a way to blame it on the engine oil used etc. They've had this issue many times over now with trucks that have no tune on them so for them to blatantly blame that from the start is just a crock.

[doubleot]

Super crappy situation but this is the dice you roll with a tuner on a vehicle that is still under warranty. Hope you get this figured out man.

 

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[m3n00b]

I just find it ridiculous that they engineer this complicated system, and when something fails they want to blame it on any small thing they can find. If it wasn't the tune they would be trying to find a way to blame it on the engine oil used etc. They've had this issue many times over now with trucks that have no tune on them so for them to blatantly blame that from the start is just a crock.

Exactly. I have 1100 miles on my truck and have the OE filter/12 qts of M1 0w20 sitting in my garage. I'm paranoid about changing my fuking oil in case GM wants to blame a future problem on it. Meanwhile I have thousands of metal flakes floating around in my dino oil wearing my engine.

[muddkatt]

Who did the tune?

 

 

Ryan

?? X2

[Daryl LBZ]

Exactly. I have 1100 miles on my truck and have the OE filter/12 qts of M1 0w20 sitting in my garage. I'm paranoid about changing my fuking oil in case GM wants to blame a future problem on it. Meanwhile I have thousands of metal flakes floating around in my dino oil wearing my engine.

You'll be fine changing it on your own, just be sure you keep records of everything that way if something does happen you can prove it.

[davidncurtis]

There is no way the tune caused that hard part failure. This is probably contributed more to the lifter than anything. This is what happens when you design a complicated system with more moving parts, things fail. GM knows this, and the tune is their way of getting out of fixing it.

This is exactly my thoughts as well as the service manager at the dealership. The the tune is the excuse to not pay for it. It's supper crappy situation. My family has purchased vehicles from the same dealership for ever. We buy all of our work vehicles and personal vehicles from them. All in all its in the range of 100 trucks and SUVs. I have never seen this on any truck that I have owned and I'm on my 6th 6.2L.

 

 

 

 

 

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[RyanbabZ71]

?? X2

?????

 

 

Ryan

[davidncurtis]

?? X2

The tune was done by MJE Tuning. The guy is great and I have had three tunes previously from him on other trucks and I have had 100k miles on each with zero issues.

 

And what's even crazier is that this tune is the most modest of all the ones he has done. The tune didn't cause this issue.

 

All that was done in the tunes was speedo correct, premium fuel which is required anyway for 6.2L and AFM turned off.

 

Since the truck is lifted with larger tires the AFM never engaged into V4 mode.

 

This is a mechanical failure that is being blamed on a tune which I understand. I just think this is crazy they are blaming this on a tune instead of wanting to know why this happened because it shouldn't and covering it under warranty.

 

 

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[RyanbabZ71]

Will he go to bat for you and provide technical expertise in regards to the tune?

 

 

Ryan

[redwngr]

This is interesting.

 

In the Dmax world is is pretty much accepted that any tune will leave a trace, and for many warranty items GM will require a snapshot before warranty approval......and that if tuned it will be denied.

[DirtyMarcus]

This is interesting.

 

In the Dmax world is is pretty much accepted that any tune will leave a trace, and for many warranty items GM will require a snapshot before warranty approval......and that if tuned it will be denied.

I believe all tunes leave a trace behind on the ecu. The dealer may have to dig to find it was tuned but they can, even if you removed it. Even the Range device will leave a trace. In my experience they usually check deeper into the ecu files on sport models and sport car, since they are more likely to have tunes. They might not check for a small warranty item like a seat rattle or trim replacement but take in a damaged engine or trans except them to dig into the files.

[Willshire]

Metallurgical test on the pushrod? if found to have a weak spot you may be back in business. Bad metallurgy trumps tune every day of the week IMO. But it's GM so who knows.

[fondupot]

Dang, that sucks. You should have swapped to your stock tune. Check engine light would have probably returned after you did that anyways.

 

Like others have said tho, tuning voids warranty, when you're caught. Even though the tune probably didn't cause the breakage here.

 

Gotta pay to play.

[RyanbabZ71]

Metallurgical test on the pushrod? if found to have a weak spot you may be back in business. Bad metallurgy trumps tune every day of the week IMO. But it's GM so who knows.

Exactly

 

Not to expensive to test either.

 

Ask for the part

 

 

Ryan