94c2500
TJ Enthusiast
2003 TJ, 4.0
Installed new Autolite XP985 Spark Plugs. The original Champion plugs apparently were still installed at 117,000mi.
It was still running fine, but I was curious as to plug condition. The combustion pattern looked good on all cylinders, but they had wide gaps, around .046 average, I guess from long-term usage.
Installed new Autolite XP985 Spark Plugs. The original Champion plugs apparently were still installed at 117,000mi.
It was still running fine, but I was curious as to plug condition. The combustion pattern looked good on all cylinders, but they had wide gaps, around .046 average, I guess from long-term usage.