chetzar
Well-Known Member
- Joined
- June 30, 2007
- Messages
- 127
- Reaction score
- 0
- City, State
- B-Town, Illinois
- Year, Model & Trim Level
- 1993 Green Explorer XLT
Well, just shortly after getting my charing system running again (thanks to everyone who helped me figure that out) I now have a cylinder missfire. i've been working on this for the past few days and kinda hit a dead end today for anything to try before taking it to a shop and have them tell me its a valve.
I tried:
Plugs
Plug Wires
Cleaned IAC/TB/Ports into the Intake manifold from IAC
Fuel Filter (after getting rust in my eye, causing it to get scratched)
So anyone else have any ideas of what it could be other than something mechanical? I get no CEL, Oil Level is good (pressure gets low sometimes, but not often). If I take it to a shop, and it is a valve, how hard is it to replace? I'm guessing it requires a teardown of the entire top of the engine, but how hard is the teardown?
Edit:
Forgot to mention, we did use a timing gun to make sure all the wires/plugs are firing. Hooked the pickup up to each wire and checked it two or three times to eliminate the coil pack/wires/plugs.
I tried:
Plugs
Plug Wires
Cleaned IAC/TB/Ports into the Intake manifold from IAC
Fuel Filter (after getting rust in my eye, causing it to get scratched)
So anyone else have any ideas of what it could be other than something mechanical? I get no CEL, Oil Level is good (pressure gets low sometimes, but not often). If I take it to a shop, and it is a valve, how hard is it to replace? I'm guessing it requires a teardown of the entire top of the engine, but how hard is the teardown?
Edit:
Forgot to mention, we did use a timing gun to make sure all the wires/plugs are firing. Hooked the pickup up to each wire and checked it two or three times to eliminate the coil pack/wires/plugs.