1992 f150 2x4 5.0 problems
 

i only have 4 out of 8 cylinders running. i have replaced spark plugs, wires, and the core and it still dont run right.

How do you know that only 4 of 8 are running? Have you done a compression test of the cylinders?

bc i would start the truck and start taking the spark plug wires off one at a time to see if it would sound different at all and time i was done i had 3 4 7 and 8 unpluged.:confused: