This truck is driving me crazy lately! It is vibrating really bad, and making what sounds like a buzzing and maybe even a grinding noise. It seems like an injector, but it doesn't do it all the time, and it doesnt miss when I accelerate. Ambient/coolant temp, trans gear,, and road speed do not seem to make a difference. It seems that once I come off the freeway after about a half hour ride it the worst.
Hopefully someone can point me in the right direction.

Thanks.
Aaron

 

UVCH would be my first stop.

 

What would be the odds that would be my problem if I already did the ford TSB to add the clips on the UVCH plug?

 

Dyhard: Someone on here posted the way to check them a vom. Do a search and you probably will find it, or someone will jump in here.
It seems that the plugs can get corroded or burned where it plugs into the Valve cover.
Also check wires for possible short to ground.