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P0304 Diagnostic Trouble Code Discussion for June 2014

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2006 Mercedes-Benz E350 4Matic 3.5L Hesitation, Misfire, MIL Lamp on VIN: WDBUF87J36
P0304: misfire. Vehicle came in 8 months ago with worn balance shaft gear and related codes. We replaced the gear, chain, and tensioner at that time. Vehicle was completed and drove fine with no engine light. Car returned last month with bank 1 head gasket leak and cam cover ...
June 11, 2014
2003 Kia Optima SE 2.7L Misfire, MIL Lamp on VIN: KNAGD12813
P0304: Cylinder 4 Misfire Detected. I am really sick of this car. customer has been complaining of poor running, check engine light on. This car would come in with the hose in front of the MAF disconnected so we checked the motor mounts they were toast we replaced the mounts then still had misfi...
June 12, 2014
2011 Dodge Nitro Detonator 4.0L Misfire, MIL Lamp on VIN: 1D4PU6GX5B
P0304: cylinder 4 misfire. Sorry for the lack of information above. In order to access the coils and injectors, the upper intake has to be removed. Once removed obviously it won't run. So we replaced the coil and injector on cylinder 4 and the rest of the spark plugs as maintenance. Whe...
June 20, 2014