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P0304 Diagnostic Trouble Code Discussion for June 2015

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2001 Honda Odyssey LX 3.5L Misfire VIN: 2HKRL18561
P0304: Cylinder 4 Misfire Detected. This Honda idles in park good with no misfire but as soon as you put the vehicle in gear the engine starts to misfire and runs so rich that it starts to smoke from the tail pipe and is almost un drivable, on first inspection I found cylinders # 2 and 5 had spa...
June 12, 2015
2005 Ford F-150 Lariat 5.4L No Start VIN: 1FTPX12585
P0304: . ... towed to Ford dealer. W/order stated towed in for non running with code P0304. Diagnosed with bad cats and had crankcase overfilled 2x. Stated power balance was down 8% in cyl 4. Compression 175 with #4 at 150. Diagnosis was it needed new engine. They beli...
June 24, 2015
2005 Ford F-150 Lariat 5.4L No Start VIN: 1FTPX12585
P0304: . ... towed to Ford dealer. W/order stated towed in for non running with code P0304. Diagnosed with bad cats and had crankcase overfilled 2x. Stated power balance was down 8% in cyl 4. Compression 175 with #4 at 150. Diagnosis was it needed new engine. They beli...
June 29, 2015
2004 Subaru Impreza Outback 2.5L Misfire VIN: JF1GG68564
P0304: Cylinder 4 Misfire Detected. ... pretty bad.I talked to the customer and he told me it started to overheat on the thru-way and was scared to pull over.When I started checking the car over I found that headgaskets where leaking gases in to the coolant. So engine came out and heads came off...
June 29, 2015
2000 BMW 323i 2.5L Misfire, MIL Lamp on VIN: WBAAM3345Y
P0304: misfire 4. This vehicle came in due to rough running. We scanned it and found misfire codes on all cylinders. The fuel trims are always around 0. We first removed the coils to inspect the plugs and found bosch super plugs, the ones all mechanics hate, so we installled a ...
June 30, 2015