Unlocking the Mystery Understanding the P0305 Code

Check engine light for P0303 code. Before I knew about OdyClub, replaced all spark plugs and all coil packs. Coil Packs were replaced with non- ... Second, swap the coil on cylinder 5 with another coil and see if the misfire moves to the new cylinder. If it does, replace the coil (no need to ... A P0305 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #5. Ran a tank of fuel system cleaner day 1. Issue: when accelerating onto the freeway Sunday it threw a p0305 code and began running rough at idle. I have a code for p0305 misfire in the number 5 cylinder. so i clear the code, i turn the car off and on and then go wot again and this time i can hear and ... I keep getting a P0305 code on the #5 cylinder. I swapped the plug (no arcing on existing) with a new NGK 6510 / LTR7IX-11 and gapped at .032 per 5 Star. A P0305 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #5. Start the Jeep back up and start moving......at sometime just after this the MIL comes on with the P0305 code. I have never seen a flashing ... My first suspect was the battery. Whenever you get little glitches the battery is always the first suspect in my experience. Code p0305 cylinder 5 misfire ... It sounds like you're describing a blown head gasket or a cracked one. Pull the spark plugs and see if any of ...