Unfortunately that's why it is so important to get that confirmation email. Unfortunately there is nothing you can do legally.
They dealership hopefully is trying to make it right.
An exhaust could be enough grounds for a claim denial. Especially if we are talking something like a turbo back exhaust which reduces back pressure and thus changes the dynamics of the turbocharger. One could potentially make that claim even with a catback exhaust.
Act language
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All right there. This isn't hard to understand. You modify your vehicle which impacts a certain part leading to a higher failure rate, the dealership can absolutely deny a claim.
Here is an extreme case on a GMC truck to help visualize the issue for a lift. This is a 6" lift. I can't imagine how quickly that thing goes through axles.
Your'e changing suspension geometry. The axle now has to reach down 2" further to the knuckle. (in case of a 2" kit) So under static load the axle is no longer a straight shot.
Edit: Also you're asking the axle to reach slightly further to the knuckle as well.
Is the ecoboost MAP or MAF based for tuning purposes? I'd want to see STFT's and LTFT's in closed loop if you're seeing a 1 point increase in AFR in open loop. That's quite a large bias in fueling.
Also you shouldn't see any noticeable increase in fuel economy if you're driving reasonable...
The dealership can decide to do a warranty claim or not. Warranty claims are not black and white. Something like a wheel bearing isn't really going to need to move up the chain unlike my Honda HR-V which needed half the car painted due to delamination of the paint. It took a lot of pictures...
1. You are correct, Ford cannot void you warranty. However they can deny a warranty claim.
2. Ford doesn't have to prove anything. Everyone who modifies their car throws out the "mAgNUsOn-mOsS..."
It seems that every time someone mentions Magnuson-Moss warranty act, the...
If you're going 55mph to and from work 20 miles I could absolutely see mid 30's. I feel like if I had roads I could do 55 on continuously I'd be above 50mpg on the hybrid.