steve160

Hi all i have a 2004 ford f-150 heritage bounce/shack at 40 to 45 mph stop when stepping on gas and does not do it on hills any help thanks

corey_lax

misfire or shaking from something moving? Transmission slipping? It's hard to diagnose a truck with such little information. I bet you are misfiring and due for a tune up of air filter, fuel filter, spark plugs

nrivera04

Not to turn you away, but since you have a heritage you may have better luck posting in the 97-03 forum.

I agree it sounds like a misfire… Might be time for some new plugs and/or coils.

Any codes or check engine light?

techrep

iTrader: (1)

are you seeing the check engine light flash while its shacking ?