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Tuners and Warranty

Do tuners like an SCT X4 Power Flash Programmer void a factory extended warranty?

Yes and no

Magnesson Moss Act

If you tune it plan on losing your factory and any extended warranty you may have.. Most tuners raise shift points, remove torque management ,raise rpm and speed limiters,and add timing among other things....these all place additional stress on your drivetrain. Just don’t do it If you want your warranty and there will be no issues...

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Originally Posted by Johnnyd359 (Post 5728192)

Erroneous and incomplete information. ^
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Originally Posted by KyleB83 (Post 5727665)

Yes and no

Magnesson Moss Act

This ^^. More 411 https://en.wikipedia.org/wiki/Magnus...s_Warranty_Act
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Originally Posted by Johnnyd359

While it's not impossible, it's also not likely.

I heard they could track down tunes that you put & removed. I don't believe dealerships have that kind of expertise, but they can send it (engine or computer probably?) to a place where they can determine if it was modified during its life.

People pretend they can just ''Switch it back to factory setting'' if an issue occur with their trucks under warranty and then bring it to the dealership to have it repaired. Auto makers are not that dumb.

I remember seeing a post here about a guy that was openly saying he had modded his engine & added a tune, and then posting - a few weeks or months later - that his engine had blown up and was bashing against Ford. If you play with fire and get burned, don't cry after. :)

Never seen a post like that in recent times at all.

Now there was a guy with a tune from SSI (Ecoboost engine) that had something similar, but he didn't bash Ford for it. Forced induction is a different animal though.

Finally, Stage3Motorsports offers a warranty you can purchase to cover incidents that the dealer will not as a result of the 5star tune. Many people bought it, but I don't think we've seen any provide feedback on filing a claim.

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Originally Posted by SteveLord (Post 5729219)

Yep I bought the powertrain warranty from 5* but have never needed it. Their tunes are dialed back compared to other ones like MPT which is what I run now. I can wipe my pcm clean with IDS if ever a failure were to occur under warranty so I'm not worried about it any way. Even if I had to buy a new pcm it's chump change compared to a new engine or trans and I'll program it my self again with IDS to oem like new off the line Ford programming/calibrations. Highly unlikely to happen as I do not race my truck or even push it to it's limits towing.
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