GreyFox
Well-Known Member
My brother is a service writer for a Chevy dealer. Some guy brought his new Silverado back in for warranty because the computer was fried. The mechanic could not figure out why and it was an expensive repair so Chevy sent down an engineer. After going over everything, they determined it was aftermarket LEDs the guy put in. Needless to say, it was denied and the guy was extremely pissed, and broke!I don't think this is a matter of will vs won't void the engine warranty. The dealer cannot strictly say, one way or the other. Certainly they can refuse to perform the work under the warranty, in which case you have to go through Fiat. Irvine Jeep is famous for this.
If the manufacturer can "reasonably" claim that a modification you made to your car has caused or in some way contributed to the failure, then they have cause to refuse your claim and likely will do.
Ford in particular does this. If you have a diesel, you can almost be positive they will void it for using one. Lots of posts on the F150 forums.
Does that mean your local dealer will not perform the work under warranty? No. Of course it doesn't. They may just do the work and get the money back from FCA.
If they want to a-holes about it, they may have grounds to do it.
At the end of the day, it is your personal decision to accept risks in life. If you feel that any real or perceived benefits of a catch can outweigh the possibility of voiding the warranty on the engine, then for you it's worth the risk. If not, then not. Either way, you are the only one who has to deal with it, so no skin off anyone else's backside.
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