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Yes and no, Under the Magnason Moss Act, they can not void your warranty unless the aftermarket part was the direct cause of the problem. So you install a tune and the radiator springs a leak, the tune didn't cause it so it's covered.
The tricky part is if the trans goes. The tune develops more power than stock, so a dealer can say yes it caused the problem and your warranty doesn't cover it. Engine is similar, they can say and you can fight.
However, I have not known anyone who has had an engine or transmission damaged by a normal tune. Infact, most tunes extend the life of transmissions by reducing the time the clutches slip and keeping them cooler.
I have a 2005 PSD 6.0 and it is in the shop now. It has a Banks Big Hoss system installed on it. The diagnosis is the turbo vanes are sticking, and the EGR valve has excessive carbon build-up. They are going to rebuild my turbo, and replace the EGR valve. Total bill for this is $1,700.00. All because the "dealer" decides if the problem was caused by the aftermarket kit.
Well, that problem could very well be caused by the tune. Black smoke isn't clean exhaust and all of that unburn fuel and assorted trash has to go somewhere.
That is what got me. The truck never smoked. I clean the K&N every 7000 miles. I make sure the oil is changed every 3K to 3500 miles. The truck has 40460 miles on it, and the radiator has been flushed, tranny flushed, both axles flushed. This truck is only driven about 150 miles a month.
The aftermarket air cleaner will also void your warranty. The factory air cleaner is probably the BEST system (for the least $) you can find for the 6.0. It has been proven that *MOST* aftermarkets can 'dust' your turbo. Reinstall your factory air cleaner....your pocketbook will love you.
That is what got me. The truck never smoked. I clean the K&N every 7000 miles. I make sure the oil is changed every 3K to 3500 miles. The truck has 40460 miles on it, and the radiator has been flushed, tranny flushed, both axles flushed. This truck is only driven about 150 miles a month.
Did you have an EGT gauge on it to monitor exhaust temps? If not, you very well could have damaged the turbo with too much heat.
I have a 2005 PSD 6.0 and it is in the shop now. It has a Banks Big Hoss system installed on it. The diagnosis is the turbo vanes are sticking, and the EGR valve has excessive carbon build-up. They are going to rebuild my turbo, and replace the EGR valve. Total bill for this is $1,700.00. All because the "dealer" decides if the problem was caused by the aftermarket kit.
The VGT turbos on the 6.0 have be known to have vanes sticking. It's caused by the mechanism that controls them. I know at least 2 other people who have had the same problem and neither of them has a tuner. But the guys with tuned trucks are running great.
FYI. They changed how the vanes adjust in the new 6.4's.
With the 2004-2008 F150, its quite easy for a tech to check this if he knows what to look for (count of the number of times the PCM has been reflashed verses the number of times Ford's OASIS system says it has). The CAN bus computers make much harder to get away with hiding it.
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