help

[az speed]

Just purchased a 2011 Raptor, within 1 month I am having a problem.
The engine will not rev past 4200 rpm or shift through the gears if I am at wide open throttle , if I back off to 70% throttle it will climb through the rpm range. It acts like a torque limitier but why would this all of the sudden just start out of the blues?

 

[Aaron]

Taken it back to the dealer yet? If it's still under warranty that's the first thing I'd do. Is it throwing any codes at all?

 

[The Car Stereo Company]

taking to the dealer is the first thing i would do. but it could be throttle body?

 

[beemerman]

could it be the my key truck app. i have read some where on here about that. where it will limit rpm and speed. or shifting am not sure. may research that. may try the other key. just a suggestion. jack

 

[Wheela]

check your air filter, might have some blockage, also ya always if it still under warranty take to the dealer.

 

[Mjolnir]

could it be the my key truck app. i have read some where on here about that. where it will limit rpm and speed. or shifting am not sure. may research that. may try the other key. just a suggestion. jack

sounds very much like the myKey app. Dealer warned me about it, told me to just say no, as it sucks.

 

[az speed]

I will be a little more specific,
Its not a dirty air filter/dirty mass air/low on fuel, ect.
It has aftermarket stainless headers and a k&n filter
I was just wanting to see if anyone had experienced the same problem and could give me some feed back.
Ford was giving me a hard time due to the headers and air filter so I put the stock air filter back in and confirmed there was no oil from filter on mass air meter,the headers are staying.
Therefore I am trying to resolve the problem without going back to dealer and playing the blame game.
I suspect it may be in the My key also.
Thanks for all of your feedback, I do appreciate the help.
By the way there are no codes

 

[Maxx2893]

Really sounds like MyKey, put your other key in and there should be a way to disable