1997 Ford F150 constant misfire on cylinder 4

1997 FORD F-150
130,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
TRITON46
  • MEMBER
  • 1 POST
i have am having a problem with a misfire on cylinder four. and no matter what i do it comes back. it all started with a leaking gas tank, after i patched the tank i noticed a slight miss, after i got it to set a code it read misfire cylinder 8. so i changed the plugs and as soon as i did, the troubles with cylinder four began. how ever cylinder 8 is now fine. i have tried several plugs and wires on cylinder four to no avail.the wires are about a year old.( i tried at least 5 different wires and plugs) i just replaced the coil and i have spark. i checked the injector and i can hear a steady clicking. i have compression.and the head gasket is good as well.

please help me im at a loss.
Sep 7, 2010 at 5:38 PM
Advertisement
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.