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Discussion Starter #1
OK guys let's hear it....who on here has had warranty claim issues since they have deleted their DPF?

I am really on the fence about getting rid of my dpf and would like to hear from guys that have actually taken their truck in for a warranty issue and have been denied because of the programmer and exhaust.

I really would like to get rid of the emissions stuff, but really struggling with ruining the warranty on $50k truck. I bought the truck for my construction business and don't want to get stuck with a truck the dealership won't fix.

My goal is to get 4" DP back exhaust with the Edge CS Race tuner. All I want to do is stop the regen and get better mileage. Not looking to make it a racing truck with all kinds of HP.
 

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Interested! I'm looking at getting EFI Live/ Exhaust in the spring. Powertrain warranty is done in July 2012. Just curious if anyone had been denied warranty service.
 

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Discussion Starter #3
Bump.....
 

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Warranty Issues

It's not only the DPF removal that is going to get you. Every tech is now required by GM to take a snapshot of the PCM upon service or repair, they will then upload it to GM and if they see any signs of the system being tampered with, they will void the warranty. It will log in a warranty block in GM's network and no dealer will perform warrany repair on the drivetrain. I spent 2 months working with GM's regional rep for a 2500 HD that I purchased used with only 22k miles. Their rep tried to get the block removed for me, and GM shot it down, twice. If you do it, be prepared. Now, that will not void the warranty on the truck itself, just the drivetrain components.
 

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That is not completely accurate. They are only required to pull the snapshot on major repairs. I can not get anyone to define major repairs though.
I was told that if a truck comes in with a blown tranny, injector issues or a blown motor, snapshot before anything else. Alternators, oil leaks,u joints and the many small items require no authorization from gm.

Of course some dealers look for any excuse not to do warranty work. I recommend always put it back to stock before going to the dealer. Don't give anyone a reason to be suspicious!
 

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Discussion Starter #6
Yeah, like I said I don't want to make my truck into a racing truck. I just want to get rid of the stupid emissions stuff. Would I have to put the factory exhaust back on if I had to go to the dealer? My buddy takes his F350 that is straight piped to the dealer for all maintenance and a couple of issues and they have never questioned anything.
Also, would they have to prove the tuner and exhaust caused the issue? Does anyone know of anyone that has had issues with just running a stock tune with a DPF delete?
 

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I had a hard time getting my DPF replaced under the warranty. (completely stock)
Deleting the DPF is an easy excuse for them to deny warranty work.
I have 50K on the truck & Iv wanted to do it for sometime now, yet I cant afford to lose the warranty.
 

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Look at my signature...
I understand what you are saying man, I'm wanting to do the exact same thing.
 

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That is not completely accurate. They are only required to pull the snapshot on major repairs. I can not get anyone to define major repairs though.
I was told that if a truck comes in with a blown tranny, injector issues or a blown motor, snapshot before anything else. Alternators, oil leaks,u joints and the many small items require no authorization from gm.

Of course some dealers look for any excuse not to do warranty work. I recommend always put it back to stock before going to the dealer. Don't give anyone a reason to be suspicious!
Maybe not where your located, but according to GM's Region Service Manager, and three different service managers at three different locations in the DFW area, they are required to look at EVERY 2500/3500 that comes through the door for service or warranty repair period. Snapshot it all. I have a freind who got nailed taking his in to have his rear door locks relplaced. This is specific to drivetrain warranty voids only...their not going to mess with your remaining chassis, elec, acc, etc. Fact is, if they want to mess with you, they will.

Classic GMC Arlington, Tx
McKinney GMC, McKinney, Tx
Huffines Chevrolet, Lewisville, Tx
Classic Chevrolet, Grapevine, Tx

These Service Managers all told me the same thing. If they touch a diesel, they going to snapshot it. Their also nailing some of the Corvette owners out there. Though they never messed with either of mine.


Also, you can put it "back to stock" all day long. They can still see that it has been tampered with.
 

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Lmm and later stores if a tuner was used, I'm thinking getting an EFI tuned ECM would get around this since the tuner would never BE on the ECM you'd have in it when taken to the dealer. But of course, is it worth all that?
 

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IMO, Deleting the emissions equipment may lead to a longer truck life and less warranty work because there is little to nothing either then a basic diesel engine. Though, every truck is different. I haven't heard of any issues with lmms after the deletes. neither before though. If mileage is a concern you gotta think about the long run, paying from 800-1200$ for dpf delete exhaust and tuner could save you quite a bit yearly on fuel. Im not smrt enough for calculations on savings. :(
 

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Lmm and later stores if a tuner was used, I'm thinking getting an EFI tuned ECM would get around this since the tuner would never BE on the ECM you'd have in it when taken to the dealer. But of course, is it worth all that?
That is an idea, though I am not sure if even an EFI Live is fully undetectable. I am sure some of the EFI Live tuners can answer that for you. I know some of us Vette guys were buying scrapped on board systems, reprogramming it according to the vin, and then swapping back the original. I am not sure if the same can be done with the processors in our trucks. But I do know there is bound to be someone on here that can answer it! Looking back it was probably more trouble than it was worth.
 

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If you went to duramaxtuner.com or through other efilive vendors they can send you a pretuned ECM for your truck and you can choose not to send your old ecm back, thus resolving the issue of detection because your tune will be on a workbench not in the truck if you return to stock.
 

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If you went to duramaxtuner.com or through other efilive vendors they can send you a pretuned ECM for your truck and you can choose not to send your old ecm back, thus resolving the issue of detection because your tune will be on a workbench not in the truck if you return to stock.
There it is! Im going to get an new one next December, that is likely the route I will go.
 

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If you went to duramaxtuner.com or through other efilive vendors they can send you a pretuned ECM for your truck and you can choose not to send your old ecm back, thus resolving the issue of detection because your tune will be on a workbench not in the truck if you return to stock.
gm will still have a good idea that something was done----there will be no record of regens in the stock ecm.

im computer term, the ecm is storing some sort of a checksum/floating byte related to firmware flashes. id be surprised if there isnt a way around this, the security employed on the ecm/tcms in these trucks isnt nearly as sophiscated as as your home router or even windows and that can be hacked fully.....
 

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Discussion Starter #16
I know of a couple guys that have Fords and they have had a programmer on their trucks for awhile and have had no issues. My buddy put his programmer and exhaust on at 1200 miles and he now has 54k with no problems. Another guy I know has 75k on the tuner and exhaust.
I just don't know anyone with a Duramax that has had no issues. I just feel like I will be the guy who puts the programmer and exhaust on and has every problem under the sun. All the guys I know buy Fords or Chevy gassers....
 

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If you went to duramaxtuner.com or through other efilive vendors they can send you a pretuned ECM for your truck and you can choose not to send your old ecm back, thus resolving the issue of detection because your tune will be on a workbench not in the truck if you return to stock.
^x2 This is what I was trying to say, should've specified Keeping BOTH ECMs.
 
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