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P0304 Diagnostic Trouble Code Discussion for March 2008

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1998 Ford F-150 4.6L Misfire, MIL Lamp on VIN: 2FMD6EGW2W
P0304: cylinder number 4 misfire. Hi all techs : This vehicle has a miss under light load,and set 2 codes, oxygen sensor bank 1 sensor 1 slow responds, and cylinder number 4 misfire detected. Another than that the vehicle runs great. Cylinder number 4 misfire count show on scanner. The misfi...
March 01, 2008
1994 Saturn SL 1.9L Misfire, MIL Lamp on, #4 cyl in 4th gear
P0304: misfire cyl 4. Hi guys, really need HELP from Saturn techs on this one never seen anything like it. I checked TSBs and Iatn Archives couldn't find any answers. This car runs great at idle or in first or Second gear the problem seems to happen only in 3rd or 4th gear. I ran a...
March 04, 2008
2006 Ford F-150 XLT 5.4L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FTPW14546
P0304: Cylinder 4 Misfire. ... truck. Customer came in with this truck barely running. Bogging, stalling, no power, missing, running like crap. Customer tells us that he had no oil in the engine the other day so he added about three quarts of oil. I managed to pull it inside the shop, a...
March 05, 2008
2000 Honda CR-V SE 2.0L Misfire, MIL Lamp on VIN: JHLRD1872Y
P0304: Cylinder 4 Misfire Detected. ... time to help. This CRV came in check engine light on, code p0304 stored. We had tuned up in January and did not seem to misfire but code reset after clearing. Engine seemed a little rough at idle so we replaced cap, rotor, ...
March 11, 2008
2003 Honda Accord EX 3.0L Misfire
P0304: Cylinder 4 Misfire Detected. This is a used car that we started working on saturday. It came in after being dolled up for running ruff and a flashing MIL. Saturday it appeared there was water in the front three spark plug tubes from the doll up. Cleared the water out, cleared the codes an...
March 17, 2008
2001 Kia Sephia LS 1.8L Hesitation, Cuts out, MIL Lamp on VIN: KNAFB12111
P0304: Cylinder 4 Misfire Detected. Customer stated this started all at once.Car will not accelerate but seems to idle just fine.Slight acceleration is decent but not under any load. plugs were not gummed up.This acts like a fuel problem because it will popback through the intake slightly like a...
March 20, 2008
1995 Ford Ranger Splash 4.0L Poor Idle Quality, Misfire VIN: 1FTCR10X6S
P0304: Cyl4 misfire. Hi all. This one has me scratching my head. Customer attempted to cure a rough idle himself by replacing plugs, wires and coil pack. He said it ran better after he replaced these parts. Ck engine lamp on with #4 misfire code after his repairs. I checked all of...
March 25, 2008
2002 Ford F-150 King Ranch 4.6L Misfire VIN: 1FTRW07612
P0304: cylinder 4 misfire. My question is why would these coils fail for a third time? Customer states both coils have been replaced two times before this repair. Failures are specific at cylinders 3/4. I use a Rotunda IDS and koer test passed, power balance looks good and all fuel trim...
March 25, 2008
2005 Subaru Impreza WRX 2.0L Excessive Emissions, Cuts out, Misfire, MIL Lamp on VIN: JF1GD29625
P0304: Cylinder 4 Misfire Detected. engine runs very rich under load but allmost normal under very light acceleration and low rpm, engine often at 4000 rpm cuts completely out like the key was turned off then comes back for a second or two but the mill light will come on and flash at time or be ...
March 25, 2008