08 JK engine miss ,baffling.
08 JK, original owner 125K miles or close to it, Started out as a slight "bump" when idling, then went to a miss after warming up then backfired driving on freeway. After all of this it would not thro...
Forum Discussion
Gjac wrote:
Glad you found the problem, as you can see from my original post I had a cracked spark plug also and it was very hard to see.
#5 is the toughest plug to replace and it was the last one I removed. I should start with the most difficult ones first then breeze through the easy ones but I seldom do. Sometimes it's all about going back to basics.
