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?
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?
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.