It all depends, technically they the FP Tune after the 3/36k is considered an aftermarket part. Aftermarket parts technically have to be proven to cause the problem for them to void warranty. Here’s an in depth article I did for the Explorer ST, but mostly everything applies to all other...
I am sure it makes a difference, but the FP tunes are just canned tunes. If you want a tune, go all the way and get a custom tune from someone like Livernois.
I've found that finding a great dealer is extremely important, but also extremely difficult. I now find myself driving 45 minutes one-way to go to a dealer that is good, versus the crappy dealer in town.
Argument you could propose, forums are just a very small group of owners, you have to remember there are literally hundreds of thousands of other owners going problem free. Also, bad experiences always travels faster then good opinions.
What you’re saying is exactly why the MM law was made. Ford could say any aftermarket doesn’t fit form, fit or function of original part. Again, what your examples are if the part caused the problem they can deny the problem I agree on that, and the point I am trying to make. Example here, if...
What? The aftermarket parts might be warranted by whatever company I purchase them from but not the OEM. The engine could be covered if the part is completely unrelated to the problem.
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