08 JK engine miss and backfire.
08, original owner 124K miles. New wires,plugs 10K miles ago. 2 ignition coils since new. So if I drive around town no engine miss. It seems to do it after it has been run for awhile, like on a 20 mile round trip, on the way back. it will start to hesitate ,the hesitation and missing gets a little worse then sometimes it backfires out the tailpipe. It doesn't throw a code. Something gets hot then fails. I am going to test the wires, plugs then coil, after that not sure which direction to take.


