Originally Posted by Texas ZJ1
After the battery, check the ignition coil. I've had several die and they are a quick fix.
This is for Texas ZJ1 about the ignition coil.
I've got an ongoing rough idle problem. I've tried all the fixes I know of and have read on this forum (new plugs, filters, cleaning throttle bottle, decarbonizing combustion chamber/exhaust valve, etc).
Recently, the Jeep started to misfire, began cranking longer before starting and gave me my first MIL (misfire #4 cylinder), which hasn't gone away in 2 weeks, so I know it's still happening. Consequently, I think it's an ignition problem. As someone who's had ignition problems, did you have any of the above problems (rough idle, misfiring) with a bad coil. I'm taking it into the dealership next week and want to know what I'm looking at in terms of cost.