my 1994 explorer with a 4.0 motor sometimes runs on 5 cyl and sometimes on 6cyl on 1994 Ford Explorer

have changed plugs, plug wires,fuel filter,injectors,lower intake gasgets,coil seems to be good,when it runs on 6 cyl, runs good then will start running on 5 cyl,and sometimes back and forth, any ideas

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
how many miles on car and how is your wiring to coils? word has a wiggle test for wiring harness problems. so try to duplicate the misfire by wiggling diff wire harnesses. its intermitant so you may have a corrided wire or connector