99 f350 with the shakes :/

[TheresHellToPay]

i have a 99 f350 5.4L gasser and recently its shakin like a motha f*

i thought at first it was my alignment. but then i stopped the truck. and it just shakes. im positive its something with the motor. if i dont give her a decent amount of gas when accelerating it shakes like crazy. its not as bad when i get going over 60 though. :/

any ideas?

[dalton1]

I would guss a bad coil pac, its very common on those motors.

[Jake]

Definitely something with the ignition system. Plugs, wires, coil pack. Id probably just replace them all.

[kimber_da]

It sounds like electrical but could it also be an injector?

[Jake]

Originally Posted by kimber_da

It sounds like electrical but could it also be an injector?

Its possible i guess, but its really most likely the ignition system needing a tune up.

[dalton1]

you can get coil pacs from summit racing for $20-25 bucks ea
that and a set of plugs should make your truck run great.

[Jake]

Originally Posted by dalton1

you can get coil pacs from summit racing for $20-25 bucks ea
that and a set of plugs should make your truck run great.

Don't forget wires too though.

[dalton1]

Originally Posted by Jake

Don't forget wires too though.

there coil-on-plug, no wires just plug boots

[Jake]

Originally Posted by dalton1

there coil-on-plug, no wires just plug boots

Oh, gotcha. Didn't know that. Im not the most knowledgeable on the technicals of the newer ford gassers.