Replacing a coil - coil pack

Hello,

When you get a misfire code, it could be due to a spark plug or the coil, it can also be due to the ignition control module. This Jeep also have ignition coil capacitor. Those can also trigger the misfiring.

First you need to see which cylinder is misfiring. Then check the plug for spark. Also you can visually check the spark plug for wear and gap.
The plugs should be gapped at .035 in.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

If you have to replace the coil pack, it has to be replace as a complete unit for all six cylinders.

I have attached diagrams for your reference.

Please let me know of any questions.

Thank you.