My truck is really jumpy when i get on the accelerator, my dad thinks it is trying to decide whether or not to go into third or fourth gear...it goes in to get checked on monday but i wanna know what yall think it is.

Any guess?
any help is greatly appreciated.

 

What do you have? Year, model, engine size?

 

Flux capacitor

Adrianspeeder

 

oh yea sorry i was in a hurry. its a 99 F-150 5.4. automatic