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P0304 Diagnostic Trouble Code Discussion for October 2004

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1996 Plymouth Grand Voyager 3.0L Excessive Emissions, Misfire, MIL Lamp on VIN: 2P4GP243XT
P0304: Cylinder 4 Misfire Detected. Need Help,please Vehicle has been to dealer serveral times for misfire. Now here, yea.(Very Grumpy customer) Code is for cyl #4, but #6 seams to be more affected, going by scope pattern. HC clean up, off idle. But does not show like a wire or plug problem. Has...
October 01, 2004
2000 Subaru Impreza RS 2.5L Misfire VIN: JF1GC6752Y
P0304: Cylinder 4 Misfire Detected. Sorry about the engine ID. This vehicle has had a 2002 wrx 2.0 turbo motor installed. Customer stated that it ran great until a heavy rain one night. The next morning, it idled rough. Labscope shows #3 and 4 injector signals are missing at idle. They come back...
October 07, 2004
1999 Subaru Forester 2.5L Hesitation, Surge VIN: 1FLSF6556X
P0304: Cylinder 4 Misfire Detected. ALOHA EVERY BODY, SUBARU TECHS I NEED HELP ON THIS ONE, THIS SUBARU CAME IN W/ E CK ENG LIGHT ON ,MISSFIRE ON ALL CYL,I TEST DROVE IT AND THE VEHICLE HAD A HESITATION, LUCK OF POWER UNDER ACCELARATION, AT SLOW THROTTLE IS BETTER BUT STEEL SLUGISH, AT WOT IT BU...
October 08, 2004
1999 Dodge Ram 1500 Van 3.9L Misfire, MIL Lamp on VIN: PB6HB11X9X
P0304: Cylinder 4 Misfire Detected. This van tuned-up 16,000 miles ago. Came back with a complaint of missing and check engine light on. I have checked Dist. cap and rotor which was replaced in tune-up and replaced this time to for it looked bad inside. Had it hooked to scope and showed low fire...
October 12, 2004
1998 Ford F-150 XL 4.2L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2FTZX1728W
P0304: Missfire Cylinder 5. HELP FOR TECHS. I have just ran out of hair. This vehicle came in on the hook 5 days ago customer complained of rough idle and no power when accelerating. Verified customer complaint and noticed that it will knock and ping like crazy under load or not and max ...
October 12, 2004
2001 Nissan Altima GXE 2.4L Misfire VIN: 1N4DL01D11
P0304: Cylinder 4 Misfire Detected. I am posting this so I can post the repair. This Altima has a misfire on cyl. 4. The vacuum leak can be heard near the intake gasket. I didn't have a smoke machine but I did the next best thing. My 2 packs a day Uncle blew smoke into a large vacuum line. The s...
October 19, 2004