hudsxj
NAXJA Forum User
- Location
- Fort Worth
My grandads 2001 xj was misfiring and throwing the MIL. I had the codes read and it showed to have a random misfire on cylinders 3 and 6. So we replaced the plugs and found that those two did not have a gap at all due to something hitting them. I replaced all the plugs with champions and it was still missing somewhat, so I then replaced the coil pak and it was still missing this time on the number one cylinder. So I pulled the plug on #1 and the new plug now had the same problem that the old ones had in that something had hit it and it had no gap anymore. The next thing that I did (though it may have not been the right thing was) take the head off and check for anything in the pistons, the only thing that was found was a few small chunks of carbon, it has 104xxx on it all by my grandad mostly city and highway driving. Any ideas? Do I need to go ahead and rebuild the head while it is off? Anywho thanks for the help.