Help! Have a 02 F150 that has suddenly started shuttering all the way down the road. THe oil and trans fluids were just checked. Any ideas???

 

Any trouble codes pop up?

Does it do this all the time, only when driving, only when driving under certain conditions?

Is it a constant shudder, or does the frequency or magnitude change with engine or road speed?

Help us to help you.

 

what trans fluid was used? Mercon V? its most likely a misfire. I would pull the plugs.