Ok so I have been haviing a problem with the 04 4.6 and before heading to the shop I figured I would ask you guys what yall think... When I punch it it pass someone the truck just reves a little and will not shuft and even starts to buck a bit. Now I have had a slipping tranny before and this seems different. It is not like the truck almost redlines it is like it just will not go and gets stuck on like 2800 or what ever rpm I punch ut at HELP?!?!?!?!?!?!?

 

Try doing this with the OD button OFF. If it doesn't do it get a tuner, it will help.

 

Smae thing with OD Off and I have also figure out it does not matter if I am doing 10MPH or 80MPH. It just will not shift?!??!??!??!???? Anybody else ever deal with this?!??!??

 

Have you checked the fluid level and color? How does it smell?

 

Now the Engine light is on ????

 

then get the EEC scanned.

 

mine ended up being the fuel filter. it was getting real bad when i would go up a hill.shop said the filter was pretty pluged.

 

Turned out to actually be a fuel pump but I am going to change the filter just to be sure. The F150 is rollin smooth again!!!!!!!