I was wondering what kind of problems are usually associated with wet plugs. I removed them today to check the gap and found one wet with what I think was fuel. Not dripping wet but definitely damp. All the rest were dry and clean. The one that is wet is the one on the right hand side nearest the firewall standing in front of the engine(truck)looking in. I noticed this last week while doing a compression test but the pressure of that cylinder was ok. For this plug to be wet both times I removed it can not be a coincidence can it?


'92 F150 XL 4x4, 5.0L AOD, Headers, K&N Air Filter, 3.55 Gears, 31x10.5x15 Tires.

 

Sounds like an ignition problem. No spark in that cylinder equals wet plug. Check plug wire, distributor cap. BTW, rear cylinder on driver's side is number 8. Cylinder number 1 is front on pass. side.

 

It sounds like that cylinder is not firing.Check the cap wire and plug one of them is probably bad.
Good luck.

 

Well I pulled the wire off while the engine was running and noticed the idling drop a little and I also saw a bright spark arcking across the plug and wire boot. Any other suggestions?


'92 F150 XL 4x4, 5.0L AOD, Headers, K&N Air Filter, 3.55 Gears, 31x10.5x15 Tires.