There's more to this story. A dealer (even if they're not the selling dealer) has no incentive to deny a claim - unless it's indeed not a factory issue - or they just don't want the work. Even then, it's easier to send the customer back to the selling dealer vs. denying the claim. Denying a claim is a big statement.
This is not entirely true.
Dealers do not make the same money per hour for a warranty claim, they also do not make the same on parts. If a dealer is selling all the non warranty work to keep their service department full, then taking on warranty claims makes them less profitable.
This is a fact, and while I would not call it an "incentive" it is a reason that dealers might not want to do warranty work, and if this is a 2 week labor job ( 80 hours ) that's less profit they make on every hour.
If it is 10 dollars an hour less X 1 staff member X 160 Hours ( work hours in a month ) that is 1600.00 in revenue they lost ( opportunity ,,loss ), take that single month and X 11 ( months in a year - 1 month for vacation and sick time ) that's 17,600.00 a year of potential revenue the dealer failed to realize. Now take this and X by how many mechanics..... @ 10 mechanics now we are talking numbers.
However I suspect there might be more to the story as well.
Ford would not ( or at least I hope they would not) simply deny the warranty claim to the dealer with no reason other than outside influence. They would deny it as outside influence for the following reasons..... ( list reasons ) maybe after market air intake installed or installed incorrectly thus effecting the turbo in this way or that way.
Ford wants happy customers, dealers want happy customers.
Might the local dealer be fucking around with this guy because he engaged them in sales and said ahah, they will sell me a tremor 250 miles away for 500 dollars cheaper I am going there. Then now taking it into the local shop for service and a human element is in place, that could happen as well.
I am extremely interested in this thread. If they only modification done to this truck was in fact the train horn, and it was installed correctly off the uplifter switches. Then this turbo should and eventually will be replaced under warranty.
Every other issues reported in this forum is followed up by how ford stepped up to make it right. ( at least the ones I have read ).
So I am hoping for this guy, that this ends the same. Worse case is the local dealer is petty, and they are not submitting the claim or not submitting correctly because they didn't get the original sale.
This guy needs to call AAA or use any of the zillion credits cards that have tow service or whatever and just have it towed to the dealer he purchased from 250 miles away OR goto a second dealer closer for a second opinion, unless he worked all local dealers against each other for the sale AND they all refuse to do warranty work because they lost the sale. The cost of that tow would be peanuts compared to this problem and the aggravation. Then if they also refuse and there was truly no modifications to the truck, and this is a part covered by the standard warranty, leave the truck there , stop making payments, and get a lawyer.