Check Engine Light due to cylinder #3 misfire on Jeep Wrangler

A Check Engine Light may illuminate indicating a "Cylinder #3 Misfire." This normally occurs in hot weather after the vehicle has been driven, parked for ten to twenty minutes, and then restarted. Heat from the exhaust vaporizes fuel inside the #3 fuel injector and causes the misfire. Installing an insulator sleeve normally lowers the temperature enough so the fuel will not vaporize.

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Average mileage: 91,975 (60,000–148,900)
Engine affected: 4.0L 6 Cylinder
3 model years affected: 2003, 2004, 2013
6 people reported this problem
2 people shared problem details
2003 Jeep Wrangler- 4.0L 6 Cylinder99,000
Check engine light flashing with cylinder 3 misfire code
2013 Jeep Wrangler60,000
Cylinder # 3 missfire
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