Is there a common problem with the 2.8's to have a shoppy idle or even while running down the road? I cant seem to figure out what is wrong with mine. I have replace the plugs, wires and the cap and rotor with good parts, not the cheap ones. And I still have the same problem. It acts just like there is a mis-fire. I could be wrong, but I am pretty sure that is what it is. it acts like you shut off the car for a split second and it does it all the time, under light acceleration, full throttle, or idleing
Thanks for any help
Marco

 

recheck plugs might be "gap bridging" build up between the electrode and metal tab, check spark plug wire resistance, check compression.