Jeep
Wrangler
10

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

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 81,557 (60,000–148,900)
Engine affected: 4.0L 6 Cylinder
3 model years affected: 2003, 2004, 2013
10 people reported this problem
Comments
Viewing 1 - 4 of 4 comments
Drove 200 miles in 85 degrees stopped for 10 minutes and had a misfire when started back up
#3 cyl missed fired drove to OH and home every time I stoped to get fuel eng would run rough until I was rolling about10 mph then it was ok . no code present taken to different shops no display of cone what is the sleeve on # 3 injector and where do you fet one?
Check engine light flashing with cylinder 3 misfire code
Cylinder # 3 missfire