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.
Check Engine Light due to cylinder #3 misfire on Jeep Wrangler
Average mileage: 60,000 (60,000–60,000)
Engine affected: 4.0L 6 Cylinder
4 people reported this problem
1 person shared problem details
2013 Jeep Wrangler60,000Visitor
Cylinder # 3 missfire
Check engine light comes on and stays on. When Barrera is disconnected light goes off and stays...
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/...
It runs goods at idle, starts good! Just started missing mainly when it being lugged around at...
Immediately after start up, I heard a clunk sound and the engine went to 3k rpm's. Shut it off...