Blown Engine
A hypothetical question: Let's say this incident had happened to a car which had been re-tuned because it had a new CAI or LTH. Is the owner totally out of luck, because the tune was modified?
On a blown engine, I'm almost certain GM would look for any evidence of a tune ever existing on the car other than OEM. If the car simply had a CAI, etc and no tune, the owner should be good IMO. The tune is what GM would look for to deny warranty coverage. If the car was tuned, the owner would need to try to flash it back to OEM (if possible) and then pray that GM could not detect it was ever there in any way.
You need to be prepared to pay if you want to play
As there is additional liability involved (rear driver that crashed), there is quite a bit on the line here for GM. The investigation team(s) are the last line of defense in attempting to prove that the failure was not a fault of General Motors. If they can not prove that the owner was at fault in any way, then they begin to start discussions for remediation, etc. with the involved parties.
In your hypothetical situation, they most likely wouldn't have even sent the team since the write counter will have already been tripped. Even assuming a stealth tool (which I won't get into at the moment), the car was towed to the dealership. The owner wouldn't have time to quickly flash back, especially after the car goes into crash mode. That essentially locks down most R/W areas you'd need to poke back at.
And then there's the hypothetical situation of claiming you never tuned it and fighting them on it, which results in 'fraud by deception' charges. To top it off, the other person's insurance company would have a field day with it knowing the car failed due to something the driver did. I'm no lawyer, but I wonder if there's a window for damages due to negligence in there...
Annnnyway....
Really depends on what the modules show, though.
The Best of Corvette for Corvette Enthusiasts
What it does it protect you from the a manufacture "voiding your warranty" for un-related modifications.
For example you put on a set of headers, and your radio stops working, they cannot "void" your warranty and refuse to fix the radio.
or
If you don't use a GM oil filter, or have your oil changed at the GM dealer, they cannot "void" your warranty and refuse to fix a broken transmission.
If you install an intake, and you bust a rod and window the block, you have voided your warranty, and they are under no obligation to replace it. You modification is related to the failure; they do not need to "prove" anything beyond you modified the intake.
What it does it protect you from the a manufacture "voiding your warranty" for un-related modifications.
For example you put on a set of headers, and your radio stops working, they cannot "void" your warranty and refuse to fix the radio.
or
If you don't use a GM oil filter, or have your oil changed at the GM dealer, they cannot "void" your warranty and refuse to fix a broken transmission.
If you install an intake, and you bust a rod and window the block, you have voided your warranty, and they are under no obligation to replace it. You modification is related to the failure; they do not need to "prove" anything beyond you modified the intake.
Also, for example, Installing a K&N cold air intake or cat back exhaust and you throw a rod they would have to prove that the intake or exhaust was the cause of the problem. So that DOES directly relate to the MMA. I'm not talking add-Ons like superchargers, re-tuning, etc.
Last edited by Motohead279; Jun 9, 2014 at 10:06 AM.
For for example Installing a K&N cold air intake or cat back exhaust and your motor blowing they would have to prove that the intake or exhaust was the cause of the problem. So that DOES directly relate to the MMA. I'm not talking add-Ons like superchargers, retuning, etc.
The MMA was enacted to prevent auto manufacturers from REQUIRING the consumer to purchase parts made only by them. The MMA act basically states that if you buy a third party *OEM replacement* air filter that meets all the same guidelines as the OEM filter, and you have an engine issue, they cannot void your warranty for this.
The MMA was NOT enacted to allow consumers to replace OEM parts with aftermarket parts that will in any way shape or form improve the performance of the vehicle while keeping the warranty intact. Each part on each production vehicle was designed to perform up to a certain load.
When you introduce parts that increase performance, you put a more load and strain on these part and as a result, the weakest link breaks. Why should the manufacturer be responsible for you pushing any single part of the car harder than what it was designed to handle? The MMA does protect the consumer to the point where as stated if you put a new radio in the car, they cannot void your warranty on say your balljoint failing. Now, if you put a 1000 watt subwoofer system in the car and have an alternator failure, its very likely you caused too much stain on the alternator powering said audio system since that alternator was not spec'ed out to handle that type of load.
Same goes for engine performance. By replacing your intake with a cold air intake, you CAN void your entire engine warranty. Changing the intake can change things such as intake air temperature, rate of flow, turbulence characteristics, etc in which the computer then tries to "make up for". As a result the engine may run richer, or leaner, and give you that performance that you wanted. At the same time it could push that weakest link past its mechanical threshold and cause you to snap a rod, blow a head gasket, burn up your rings, etc. These types of things are category specific. if you lower your car, you suspension warranty as a whole would be void. If you modify any parts under the hood related in any way to engine operation to deviate their performance or functional characteristics, you void your entire engine warranty. That simple.
Is it likely that you will blow an engine by adding an intake, nope. But all the manufacturer needs is an excuse and they can walk away from the claim. People that say "oh I added an intake it wont blow the motor" may be right, but technically they are in the same boat as those who add an air filter, intake manifold, headers, exhaust, tune, different sized pulleys, higher volume fuel pumps, etc. These items are considered "bolt ons" and not engine internals, but they have DIRECT correlation to the internal parts and as a result will void the warranty on the entire engine should a claim be attempted. Sorry for the rant, just want to set the story straight.
Last edited by FYREANT; Jun 9, 2014 at 10:19 AM.
As soon as you modify outside any of the GMs validates ranges, including adding power, anything drivetrain related should is an easy warranty denial. If it was a drop in filter replacement, no problem, MMA works to protect you. Adding a CAI system, nope.
Now if your radio, or adjustment on a seat breaks, then you still have warranty since they can't void the whole thing, but they can deny any power train warranty work for any added power.
http://www.sema.org/sema-enews/2011/...ermarket-parts
With the MMA in place a manufacturer is going to have to PROVE that, for example, a cat back exhaust for example caused a connecting rod to snap. Without the MMA in place GM or whoever could, if they wanted to, just blame the exhaust because its "part of the engine". An auto manufacturer would never be able to prove that was the reason, unless it was improperly installed of course. So in essence I believe that it does have a direct correlation.
Last edited by Motohead279; Jun 9, 2014 at 11:00 AM.
http://www.sema.org/sema-enews/2011/...ermarket-parts
With the MMA in place a manufacturer is going to have to PROVE that, for example, a cat back exhaust for example caused a connecting rod to snap. Without the MMA in place GM or whoever could, if they wanted to, just blame the exhaust because its "part of the engine". An auto manufacturer would never be able to prove that was the reason, unless it was improperly installed of course. So in essence I believe that it does have a direct correlation.
and, you cannot say that an exhaust has no correlation to a connecting rod. The exhaust has several o2 sensors that the vehicle ECU reads and adjusts settings based on, and if you change anything related to the flow, you run the risk of this data being tampered and causing the engine to perform in ways it was NOT designed to do. Things such as air flow, and fuel at different RPM's are adjusted and this directly affects the load on the engine parts through the RPM band.
Last edited by FYREANT; Jun 9, 2014 at 11:09 AM.
In your hypothetical situation, they most likely wouldn't have even sent the team since the write counter will have already been tripped. Even assuming a stealth tool (which I won't get into at the moment), the car was towed to the dealership. The owner wouldn't have time to quickly flash back, especially after the car goes into crash mode. That essentially locks down most R/W areas you'd need to poke back at.
and, you cannot say that an exhaust has no correlation to a connecting rod. The exhaust has several o2 sensors that the vehicle ECU reads and adjusts settings based on, and if you change anything related to the flow, you run the risk of this data being tampered and causing the engine to perform in ways it was NOT designed to do. Things such as air flow, and fuel at different RPM's are adjusted and this directly affects the load on the engine parts through the RPM band.

And please don't cause me Sir... you make me feel like my father...
Last edited by Motohead279; Jun 9, 2014 at 12:38 PM.















