Tunes and voiding warranty

[Mustang Maverick]

Folks,
When we mod we accept some risk.
There are good mods and tune out there from good companies.
And Ford Performance even sells there own and if a Ford dealer installs or flashes your warranty is intact.

However, a little legal stuff - maybe if we have a real lawyer on the forum they can chime in.

Basically, the Magnuson-Moss Warranty Act states the warranty company, manufacturer, dealer, repair shop, etc has to prove the mod caused the failure.
Just because you mod does not automatically void the warranty.

But it could in some cases.
Like if you flash and then the car has problems in throttle, air fuel, wont start or run, etc.
If your tuning caused the failure then you are paying for the repair and you probably wont be cover for related failures in the future.
But if you flash and 3 weeks later power windows dont work, alternator goes bad, etc you should still be covered.

Here is a link
https://consumer.findlaw.com/consum...laws-and-the-magnuson-moss-warranty-act-.html

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[Bikeman315]

But if you flash and 3 weeks later power windows dont work, alternator goes bad, etc you should still be covered.

Yes, you should. But, there are dealers who just do not want to be bothered and will try to find a way out of submitting a claim regardless. Never could quite figure this out as they do get paid for warranty service. Ford can also look for a way out if they see a car has been modified. If you are going to mod be forewarned that if your claim is refused for work that should be covered you are in for a long tiring fight. If your not up to that do not mod, period.

 

[MaskedRacerX]

The actual changes in the ECM/Tune are __not__ logged, i.e., if fuel tables are altered by a custom tune, then returned to stock, the previous values aren't recorded.

What __is__ recorded is the fact a flash was done. So then it becomes a case of "We don't have 10 flash updates documented so how did these occur ...", the key count is related: as of the last ECU update, the number of key cycles is counted, so if you've got a 2 year old car with 12,000 miles with 10 key cycles, something is obviously up.

It's still a bit speculative on their part, but at that point it's you vs. Ford.

There's also something called the drive cycle, it's like the new car ECU break in, where you have to do X number of miles/starts/warmups/etc., I and I believe a flash reset this as well. More info here:

http://www.obdii.com/drivecycleford.html

 

[Mustang Maverick]

All,
Happened upon this thread on the forum.
Some good info.

https://www.mustang6g.com/forums/threads/plan-on-modding-your-s550-get-informed.10970/

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