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P0303 Diagnostic Trouble Code Discussion for June 2010

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2003 Land Rover Discovery SE 4.6L Misfire VIN: SALTW16483
P0303: Missfire cylinder 3. Customer overheated engine and we found the top of the block warped. Had a local machine shop do a total rebuild on the engine and they decked the block. I now have miss-fires on cyl#3&4 at all times. All ignition components are new and I have since change...
June 01, 2010
2004 Jeep Liberty Sport 3.7L Misfire VIN: 1J4GL48K74
P0303: Cylinder 3 Misfire Detected. hello ladyes And gentelmen i have a jeep with multiple codes for misfire and coil drivers on 3 cylinders swaped out coils with known good ones and still have concern compression test all cylinders average 150 psi all also have 130 running compression installed...
June 06, 2010
2003 Land Rover Discovery SE 4.6L Misfire VIN: SALTW16483
P0303: Missfire cylinder 3. Customer overheated engine and we found the top of the block warped. Had a local machine shop do a total rebuild on the engine and they decked the block. I now have miss-fires on cyl#3&4 at all times. All ignition components are new and I have since change...
June 10, 2010
2002 Ford Escort SE 2.0L Poor Idle Quality, Misfire VIN: 1FAFP33O72
P0303: Misfire cylinder 3. Hi Guys, Vehicle came in with a P0701 lean code. It was running terrible. Found that the pcv hose that runs from the rear of valve cover to the middle of the rear of the engine had a big tear in it. We replaced it and the stalling etc stopped. Now, we still h...
June 16, 2010
2000 Hyundai Tiburon 2.0L Hesitation, Misfire, MIL Lamp on VIN: KMHJG25F37
P0303: Cylinder 3 Misfire Detected. ... with P0300, P0301, P0303, P0304 codes set in memory. On a test drive we noticed a slight missfire under 3000rpm right at part to wide open throttle at take off under a load, such as taking off from a stop light. Brought the...
June 17, 2010
2006 Ford Taurus SE 3.0L Misfire VIN: 1FAFP53U96
this taurus has an intermittent #3 misfire at cold startup and after a 10 minute hot soak. Misfire will go away after just a few miles. I thought leaky injector. I do not have the hookups to check fuel pressure on this vehicle but fuel pressure pid remained co...
June 22, 2010
2001 Lexus RX300 3.0L Hesitation VIN: JTJHF10UX1
P0303: Misfire 3. Hi All, I really would appreciate your input on this as it seems it may be a wild goose chase. The complaints are hesitation on highway. Codes are listed below. It seems to me that the rear A/F sensor bank 2 is out but I really have not enough knowledge to co...
June 29, 2010