Join Now
International Automotive Technicians Network

P0303 Diagnostic Trouble Code Discussion for April 2009

Cylinder 3 Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2006 Subaru Impreza WRX 2.5L Hesitation, Misfire, MIL Lamp on VIN: JF1GG79646
P0303: Cylinder 3 Misfire Detected. I have a Subaru with a misfire problem. It seems to be too soon for plugs but thats what it feels like. This coil over turbo model does not lend itself to easy inspections. I can feel the misfire at all RPM's and its more at high loads. I do not have much expe...
April 01, 2009
2001 Mazda Millenia 2.5L Misfire, MIL Lamp on VIN: JM1TA22161
P0303: Cylinder 3 Misfire Detected. ... wants to help. i have a 2001 mazda millenia with a 2.5l dohc motor. we rebuilt the engine. we have 160 psi compression on cylinder 1/3/5 and 175 psi on 2/4/6. the car is setting a p0303 for misfire in cylinder 3 and it is not contributing at idle. i can pu...
April 07, 2009
2005 Chrysler Town & Country (Van) Limited 3.8L Misfire VIN: 2C4GP64L05
Good Afternoon All. I have a problem Chrysler T&C that came in with a number 3 misfire, as well as, a random misfire. I pulled #3 plug out and it was cracked and appears to have not been firing for sometime. Replaced plugs and wires but I still have a miss...
April 09, 2009
2005 Chrysler Town & Country (Van) Limited 3.8L Misfire VIN: 2C4GP64L05
Good Afternoon All. I have a problem Chrysler T&C that came in with a number 3 misfire, as well as, a random misfire. I pulled #3 plug out and it was cracked and appears to have not been firing for sometime. Replaced plugs and wires but I still have a miss...
April 10, 2009
2003 Cadillac CTS 3.2L Misfire, MIL Lamp on VIN: 1G6DM57N93
P0303: Cylinder 3 Misfire Detected. Vehicle came to shop misfire always customer states accessary drive (serpintine) belt broke engine overheated. Customer replaced belt and brought to shop. I retrieved codes pulled plugs from right bank and checked compression results 125 - 130psi. There is onl...
April 15, 2009
1998 Ford Ranger Splash 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTYR14X3W
P0303: cylinder 3 misfire. hello to all! i have this 98 ranger that came into my shop with poor idle and check engine light on, pulled codes for misfire on cylinders 3 and 4. misfire is there all the time under all loads. checked for spark and I do have spark at both cylinders. pulled N...
April 16, 2009
1994 Chrysler New Yorker 3.5L Hesitation, Cuts out, Misfire VIN: 2C3ED446F4
P0303: misfire on cyl 3. the vehicle runs irractic on accel. & under a load above 1500 rpm. the tac fluctuates irratic & the cruise control light flashes when the break up occurs. we we tried a computer out of a running vehicle, crank sensor, tried another good coil pack, new ...
April 17, 2009
2002 Mercedes-Benz CL600 5.8L Misfire VIN: WDBPJ78J02
P0303: cyl 3. PERFORMED OIL CHANGE ON THIS VEHICLE A FEW DAYS AGO. CUSTOMER RETURNED WITH OIL LEAKING FROM OIL FILLER CAP. IF THE OIL FILLER CAP IS TURNED SLIGHTLY PAST THE LOCKING POSITION, IT WILL COCK THE SEAL AND CAUSE OIL TO LEAK OUT UNDER ACCELERATION. CLEANED AREA O...
April 20, 2009
2002 Ford Explorer XLS 4.0L Excessive Emissions, Misfire, MIL Lamp on VIN: 1FMZU72K42
P0303: cylinder 3 misfire detected. looking for some help guys, we have this 2002 explorer that at an idle seems to run pretty smooth but as soon as you put it into drive it starts misfiring and surging. if you take it up off of idle and drive it, it runs great. we cleaned the mass airflow senso...
April 22, 2009
1997 Infiniti Q45 4.1L Poor Idle Quality, Misfire VIN: JNKBY31D0V
P0303: Cylinder 3 Misfire Detected. ... here is the story. Customer said the low fuel indicator came on and shorty after came to a stop and that when the problem occurred. The vehicle start to run rough. So, the customer replaced the his fuel filter;but, it did not fix his problem. When I looke...
April 23, 2009
1997 Infiniti Q45 4.1L Poor Idle Quality, Misfire VIN: JNKBY31D0V
P0303: Cylinder 3 Misfire Detected. ... here is the story. Customer said the low fuel indicator came on and shorty after came to a stop and that when the problem occurred. The vehicle start to run rough. So, the customer replaced the his fuel filter;but, it did not fix his problem. When I looke...
April 24, 2009
2001 Mazda Millenia 2.5L Misfire, MIL Lamp on VIN: JM1TA22161
P0303: Cylinder 3 Misfire Detected. ... wants to help. i have a 2001 mazda millenia with a 2.5l dohc motor. we rebuilt the engine. we have 160 psi compression on cylinder 1/3/5 and 175 psi on 2/4/6. the car is setting a p0303 for misfire in cylinder 3 and it is not contributing at idle. i can pu...
April 27, 2009
2002 Audi A6 3.0L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: WAULT64B82
... with the idle control on this vehicle. this vehicle came in with a cel light and a rolling idle. the idle fluctuates about 500-700 rpm from 500 to about 1300 rpm when the vehicle is running in park. its also noticeable in gear. the codes found are: p0102, ...
April 28, 2009
2000 Volvo V40 1.9L Misfire, MIL Lamp on VIN: YVIVW2558Y
P0303: misfire 3 cylinder. OK, this one is driving me up the wall! About 5000 miles ago, the car came in for PO303, and I replaced the coil pac, replaced the plugs with conventional NGKs. Was fine for a couple of weeks, and it came back with the same problem. I did a cold compression te...
April 28, 2009