Can anyone help me I have got a 2004 fx4 f150 and nobody can fix it. Vibrates in park and around 40 to 55 mph. I've done had engine rebuilt transmission rebuilt tje cam phasers n timing chains done plugs coIL packs and everything nobody can fix it. Now it never vibrated before until I got engine rebuilt

 

codes? What brand of cops did you buy? Take it back to the shop that installed the rebuild.

 

i did and the coil packs I got online but they were lifetime warranty they were from the same ones like was in it before