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P0303 Diagnostic Trouble Code Discussion for January 2013

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2004 Volkswagen Beetle GLS 1.8L Misfire VIN: 3VWCD31Y14
P0303: cylinder 3 misfire. On a cold start engine misfires for short time then smooths out, once it smooths out it will run fine under all driving conditions. I noticed that the secondary air pump runs on a cold start and it shuts off about the same time that the engines misfires stop. ...
January 01, 2013
2005 Ford Ranger XL 3.0L MIL Lamp on VIN: 1FTZR44U45
P0303: cylinder 3 misfire. ... this little ranger that came in for a check engine light on. Only one code, P0303 Cylinder 3 misfire. Seemed simple enough, needs a tune up! Pulled #3 plug and found it to be worn. Plugs were original Motorcraft plugs. Installed new plugs and wires and cle...
January 04, 2013
2002 Kia Optima SE 2.7L No Start, Misfire VIN: KNAGD12892
P0303: Cylinder 3 Misfire Detected. Towed into shop as a crank and no start. I crank for about 20 seconds on it and it started. I drove it and it ran fine. After it would set for about 30 minutes then it would take maybe 10 seconds to crank before it would start. Then it started and ran fine fo...
January 11, 2013
2006 Ford Expedition XLT 5.4L Misfire VIN: 1FMPU16516
P0303: Engine misfire cylinder 03. This vehicle is a Police Patrol unit. It has a misfire under load on cylinder #03. The engine runs smoothly at idle and seems ok at all speeds until you floor the accelerator pedal. It starts out ok but in a second or two it starts to misfire horribly and it s...
January 14, 2013
2006 BMW X5 4.4i 4.4L Misfire, MIL Lamp on VIN: 5UXFB53506
P0303: cylinder 3 misfire. car misfires when first cold in the morning but clears out, does not smoke at all. replaced both crankcase vent valves and updated hoses, installed new plugs an reprogrammed pcm. car has misfires on all cylinders, mostly on cold mornings. read all tsb about mo...
January 15, 2013
2006 GMC W4500 Forward W4S042 5.2L Hesitation, Cuts out, Stall, Misfire, no throttle response VIN: J8DC4B1677
P0303: cylinder 3 misfire detected - history code only. Thank you for taking the time to help me here. I don't do a lot of diesel work but this is a really good customer and I need to help him. The truck was purchased at auction in June of 2012 and has run pretty well for the 15K miles since the purchase. It has ha...
January 18, 2013
2000 Ford Ranger XL 2.5L No Start, Poor Idle Quality, Cuts out VIN: 1FTYR10C1Y
P0303: Missfire Cylinder 3. ... truck that just happen to break down in front of my shop while dropping off some parts. The truck cranked fine but wouldn't start. I finally managed to get the vehicle running long enough to pull it in the shop. I scanned it for codes and got a p0303 and p...
January 19, 2013
2002 GMC Envoy SLE 4.2L Misfire VIN: 1GKDT13S52
P0303: Cylinder 3 Misfire Detected. ... and runs a little rough at idle. Put scan tool on and found p0303, pulled coil off checked plug swap plug and coil with different cylinder. No change. Still missing on cyl 3. Did compression test had 150 psi, cylinder leak down test have alittle going thru...
January 23, 2013
2006 GMC W4500 Forward W4S042 5.2L Hesitation, Cuts out, Stall, Misfire, no throttle response VIN: J8DC4B1677
P0303: cylinder 3 misfire detected - history code only. Thank you for taking the time to help me here. I don't do a lot of diesel work but this is a really good customer and I need to help him. The truck was purchased at auction in June of 2012 and has run pretty well for the 15K miles since the purchase. It has ha...
January 23, 2013
2002 Lincoln LS 3.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1LNHM86S82
P0303: Cylinder 3 misfire. Vehicle brought in a month ago for MIL flashing. Code PO303 & PO316. Customer had driven vehicle for 12K+ miles since major tuneup when MIL came on. We removed the plenum, removed coil and spark plug on cylinder 3, and placed the plug in cylinder 4 and the...
January 30, 2013
2006 Mercedes-Benz E350 3.5L Misfire VIN: WDBUF56J76
P0303: Cylinder 3 misfire. We resealed valve covers. We did not pull front covers off as it was only leaking from the back areas. We test drove the car for about 20 minutes (idle and driving) Brought it back into shop. Shut of engine, restarted and had a direct misfire and 2 codes. All ...
January 30, 2013