I have a 89 4.2L Wrangler, recently I somehow lost the Oil filer cap and a some oil was lost inside the engine compartment lightly covering the block, distributor cap and wires and the air filter cover. Since then it will randomly miss 1 to 3 cylinders whilst driving, when it occurs there is a notable loss of rpm and "go". On a couple of occasions whilst in 1st gear it has missed completely and stalled.
I replaced the air filter and cleaned down the surfaces, I also took a look at the distributor wires and all seemed clean... what am I missing here, help! Thanks in advance for your reply's.