Well i'm bored at work and i'm still wondering about the misfire code im getting for cyl#4 I checked the spark plugs everything looks fine no burn or any wierd stuff i'm just wondering about gapping should it be .30 or .35? not really sure. btw 2000 WJ 4.0 I6
00wj Red genIII projector head lights, K&N CAI. (more coming soon!)
I had a similar situation with a cylinder misfire code on my 4.7. I did some research and found out it could just be clogged/carbon build up within the injector. I ran a can of seafoam through the brake booster per the instructions and the code vanished. that was about 10k miles ago and it hasn't reappeared. Might be worth trying since a can of seafoam is only a few bucks.