06-25-2014, 09:57 AM
Definitely a coil. Not a big deal. Those engines are notorious for that, and they are hard to find sometimes. Get the aftermarket Accell brand (yellow) coils. I replaced all 8 of mine on my '01 5.4L around 75k, and didn't have to do it again until around 220k.
They way to find it is to get a good one and start swapping until you find the problem.
Alternative way, if it's really bad, is to unplug one at a time while it's idling, and see which one does NOT affect the idle.
Be sure to use dielectric grease when you replace them, on all connections (spark plug and coil)
Good luck!
Peter
Peter
They way to find it is to get a good one and start swapping until you find the problem.
Alternative way, if it's really bad, is to unplug one at a time while it's idling, and see which one does NOT affect the idle.
Be sure to use dielectric grease when you replace them, on all connections (spark plug and coil)
Good luck!
Peter
Peter
http://www.85xr.com
1985 Merkur XR4Ti Track Car
2013 Ford F-150 FX4 Ecoboost
E46 BMW 330Ci Sport 5spd
1973 Honda CL125S
1985 Honda CX500
2013 Arctic Cat 700 ATV
2017 Onewheel +
1985 Merkur XR4Ti Track Car
2013 Ford F-150 FX4 Ecoboost
E46 BMW 330Ci Sport 5spd
1973 Honda CL125S
1985 Honda CX500
2013 Arctic Cat 700 ATV
2017 Onewheel +