Ok I have a 94 f150 5.0 auto. I will be driving down the road and the truck will start shaking like crazy sometimes. We did a tune up and that didn't help and it's not the fuel pump. Any ideas ?

 

Does it have a carrier bearing?

 

Honestly I'm not sure what that it lol.

 

lol....what body package is it? IE single cab, extended cab, crew cab. longbed...shortbed?

 

reg cab, short bed

 

Could be a number of things. check your U-joints, transmission mount and motor mounts. Could also be a bad toque converter...check for loose torque converter bolts and the fluid level in your transmission with the truck in park or neutral and running with the E brake on.

 

need more info.

Is it while cruising at highway speeds?
Accelerating?
Decelerating?
Any particular speed?
Have you done an error code scan?

 

my truck does the same thing every gear as soon as it shifts???