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Chris (aka- Moose)
Chris (aka- Moose), Ford Technician
Category: Ford
Satisfied Customers: 33320
Experience:  16 years experience with Ford.
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Ford f250 5.4 liter motor No power up hills. RPMs wont ...

Resolved Question:

Ford f250 5.4 liter motor No power up hills. RPMs wont go over 3000 even in nuetral
Submitted: 6 years ago.
Category: Ford
Expert:  Chris (aka- Moose) replied 6 years ago.

Is it turning on the check engine light?

did this just occur or did you just buy it?

When you rev in neutral or park does it get up to 3k fast but stops and levels off there?

Does it downshift when going up hills?

Customer: replied 6 years ago.
no check engine lite

the problem just started

revs in nuetral or park is 3k or 3100

yes downshifts up hills
Expert:  Chris (aka- Moose) replied 6 years ago.

Has it always been like this or did it just start?

Did you recently buy this truck?

Does the engine jerk or shudder while lugging?

Customer: replied 6 years ago.
problem just started
had the truck for 1 1/2 yeats
does not shutter or jerk
just wont go uphills or go fast
downshifts and runs up to about 3000 rpms
downshifts al the way down to low up hills but never more than 3k NO POWER
Expert:  Chris (aka- Moose) replied 6 years ago.

Hello I'm Chris a Ford Employee and Certified Engine/Transmission Specialist.

Thanks for asking your question. I am eager to get your vehicle back up and running correct, I am here to help you out for a small fee far less than a dealership and easier on the wallet, so if this information is of aid PLEASE PRESS ACCEPT and help me out financially by paying the small fee. Please reply if further discussion is needed.


All newer vehicles like yours have rev limiters so in neutral and park the reason you cant get over 3k is because of the rev limiter. Now it should not come into effect while driving. So there is a possibilty of a PCM concern which is not letting the engine over 3k in drive. Another possible concern is low fuel pressure at hwy speeds. I recommend you monitor the fuel pressure to see if it drastically drops during acceleration or up hills.
Chris (aka- Moose), Ford Technician
Category: Ford
Satisfied Customers: 33320
Experience: 16 years experience with Ford.
Chris (aka- Moose) and 3 other Ford Specialists are ready to help you
Customer: replied 6 years ago.
how do I monitor fuel pressure???
Expert:  Chris (aka- Moose) replied 6 years ago.
You have to hook an actual fuel pressure gauge up to the fuel rail

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