P0305 Code A Troubleshooting and Repair Manual for Resolving Ignition System Issues

The sporadic issue comes with a few various possibilities.. the easiest being the injector is bad. The other not easy part is there is possibly valve leak. Default Re: Cylinder 5 misfire trouble code P0305. Could be a cracked head gasket. Start it up and check for a hissing noise by cylinder 5. It could also be a ... Cylinder 5 misfire could be a bad spark plug but most likely will be a bad coil for that cylinder. I would change it out. Sent ... It's pretty common roller rocker issue that causes camshaft damage on the pentastar v6's which in turn throws a misfire code(s). Ok, so after I replaced the #5 coil and still got P0305 codes and misfires under load... I ran through the remaining gas in the tank (octane 87) ... I keep getting diagnostic code P0305 (intermittent misfire on cylinder #5). I have replaced all spark plugs and coils, replaced the fuel injector for cylinder ... I've got a 2015 Durango Limited. Engine light on and code P0305 Misfire on #5 cylinder. 38000 miles. A little bit of rough idle and light engine noise. Had my code reader with me, and pulled P0305 (cylinder #5 misfire). I will check the coil packs for primary and secondary resistance tonight. We have been experiencing occasional P0305 misfires. Sometimes so that it only sends a pending code. Other times so that the check engine light illuminates. I'm expecting the code to disappear again on my drive home from work. With it being this intermittent, it couldn't be something internal could ...