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P0303 Diagnostic Trouble Code Discussion for August 2011

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2005 Cadillac CTS 3.6L Misfire VIN: 1G6DP56745
P0303: Cylinder 3 Misfire Detected. I need to remove or reposition intake manifold to get to the spark plugs & coils. Alldata states not to separate the upper from the lower manifold. My concern is am i going to separate the manifolds by removing the six bolts from the top manifold. I guess ...
August 02, 2011
2004 Honda Civic EX 1.7L Misfire, MIL Lamp on VIN: 2HGES16324
P0303: Cylinder 3 Misfire Detected. Car came in with cel on found #3 cylinder misfire. Traced to leaking injector. Replaced injector and customer drove for a week. Customer called and said you got it it's fixed! Well the car has come back and still has #3 misfire. compression test good. Leak dow...
August 02, 2011
2001 Jeep Grand Cherokee Limited 4.7L Misfire, MIL Lamp on VIN: 1J4GW58N91
P0303: Cylinder 3 Misfire Detected. good inj. Pulse when missing also has spark when missing. We have checked lifters they seem ok not collapsed however the problem will disapear, after it runs a minute and sometimes it won't appear the next day when cold but then reappear later on cold start th...
August 02, 2011
2001 Jeep Grand Cherokee Limited 4.7L Misfire, MIL Lamp on VIN: 1J4GW58N91
P0303: Cylinder 3 Misfire Detected. good inj. Pulse when missing also has spark when missing. We have checked lifters they seem ok not collapsed however the problem will disapear, after it runs a minute and sometimes it won't appear the next day when cold but then reappear later on cold start th...
August 03, 2011
2003 Jaguar X-Type 2.5L Hesitation VIN: SAJEA51D43
P0303: Cylinder 3 Misfire. When driving "Cruise unavailable" warning comes on and vehicle loses acceleration. Then it will come back and vehicle will buck and jerk. Have checked the codes, re-set. Checked for intake leaks, none. Replaced fuel, etc... Have checked connections and...
August 10, 2011
1999 Mercedes-Benz E320 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WDBJF65H5X
P0303: testing and results. Hey guys, got a tough one here. The vehicle is a W210 1999 M-B E320. Car has approx. 150k miles on it. Cats were replaced as typical approx 2 years ago with new O2s. Last month the owner complained that vehicle stalled on her. Since the M112 CKP is notoriousl...
August 11, 2011
2000 Ford Windstar 3.8L Misfire VIN: 2FMZA5243Y
P0303: Miss on cyl 3. I replaced the plugs and wires with new motorcraft parts. The old plugs were fouled and original. The compression is 175 to 185 on all cylinders. Applying vacuum to EGR while idling causes a stall. A smoke test showed no leaks. The #3 injector connector had a ...
August 18, 2011
2001 Toyota Corolla LE 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2J1BR12E01
P0303: Cylinder 3 Misfire Detected. Car came in with severe misfire on cyl 3 with above codes.Customer states light has been on about 2 weeks and misfire has gotten progressively worse. She has owned it since May of this year. Pull COP, pull plug, semi oily deposit bridging center electrode to g...
August 18, 2011
2008 Ford F-450 Super Duty XL 6.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDXX47Y8E
Has rough idle like misfire, sometime wil set check engine light on. Black smoke sometimes and no power. Code p0171,p0300,p3316 keeps coming back.
August 19, 2011
2001 Toyota Corolla LE 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2J1BR12E01
P0303: Cylinder 3 Misfire Detected. Car came in with severe misfire on cyl 3 with above codes.Customer states light has been on about 2 weeks and misfire has gotten progressively worse. She has owned it since May of this year. Pull COP, pull plug, semi oily deposit bridging center electrode to g...
August 20, 2011
2008 Ford F-450 Super Duty XL 6.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDXX47Y8E
Has rough idle like misfire, sometime wil set check engine light on. Black smoke sometimes and no power. Code p0171,p0300,p3316 keeps coming back.
August 22, 2011
2008 Ford F-250 Super Duty FX4 5.4L Misfire VIN: 1FTSX21508
P0303: cylinder 3 misfire. ... sure where to go with this vehicle. flow chart not much help. I have a code P0012 Intake Camshaft Position Timing. I kind of want to change the VCT solenoid on the right side but not sure that will fix the problem. I can also hear some ticking noise in the...
August 23, 2011
2001 Dodge Dakota 3.9L Poor Idle Quality, Misfire VIN: 1B7GL22X01
P0303: Cylinder 3 Misfire Detected. Well, I'm hoping for some good advice here. I'm working on a 2001 dodge dakota 3.9 with a customer complaint of "intermittent no power" and "rough idle". I took the vehicle for a ride and felt the concern. I scanned the vehicle and found no his...
August 25, 2011
2001 Chevrolet Suburban 1500 5.3L Poor Idle Quality, Misfire VIN: 1GNFK16391
P0303: misfire cyl 3. ... otherwise it was a pefect day, truck came in p0303, misfire cyl 3 . misfire only felt at idle, runs strong otherwise. good spark, chked with spark tester traded coils with 1st cyl coil anyway, put in a new plug. inj has pulse, tested with noid lite. compre...
August 29, 2011
2005 Cadillac CTS 3.6L Misfire VIN: 1G6DP56745
P0303: Cylinder 3 Misfire Detected. I need to remove or reposition intake manifold to get to the spark plugs & coils. Alldata states not to separate the upper from the lower manifold. My concern is am i going to separate the manifolds by removing the six bolts from the top manifold. I guess ...
August 02, 2011
2004 Honda Civic EX 1.7L Misfire, MIL Lamp on VIN: 2HGES16324
P0303: Cylinder 3 Misfire Detected. Car came in with cel on found #3 cylinder misfire. Traced to leaking injector. Replaced injector and customer drove for a week. Customer called and said you got it it's fixed! Well the car has come back and still has #3 misfire. compression test good. Leak dow...
August 02, 2011
2001 Jeep Grand Cherokee Limited 4.7L Misfire, MIL Lamp on VIN: 1J4GW58N91
P0303: Cylinder 3 Misfire Detected. good inj. Pulse when missing also has spark when missing. We have checked lifters they seem ok not collapsed however the problem will disapear, after it runs a minute and sometimes it won't appear the next day when cold but then reappear later on cold start th...
August 02, 2011
2001 Jeep Grand Cherokee Limited 4.7L Misfire, MIL Lamp on VIN: 1J4GW58N91
P0303: Cylinder 3 Misfire Detected. good inj. Pulse when missing also has spark when missing. We have checked lifters they seem ok not collapsed however the problem will disapear, after it runs a minute and sometimes it won't appear the next day when cold but then reappear later on cold start th...
August 03, 2011
2003 Jaguar X-Type 2.5L Hesitation VIN: SAJEA51D43
P0303: Cylinder 3 Misfire. When driving "Cruise unavailable" warning comes on and vehicle loses acceleration. Then it will come back and vehicle will buck and jerk. Have checked the codes, re-set. Checked for intake leaks, none. Replaced fuel, etc... Have checked connections and...
August 10, 2011
1999 Mercedes-Benz E320 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WDBJF65H5X
P0303: testing and results. Hey guys, got a tough one here. The vehicle is a W210 1999 M-B E320. Car has approx. 150k miles on it. Cats were replaced as typical approx 2 years ago with new O2s. Last month the owner complained that vehicle stalled on her. Since the M112 CKP is notoriousl...
August 11, 2011
2000 Ford Windstar 3.8L Misfire VIN: 2FMZA5243Y
P0303: Miss on cyl 3. I replaced the plugs and wires with new motorcraft parts. The old plugs were fouled and original. The compression is 175 to 185 on all cylinders. Applying vacuum to EGR while idling causes a stall. A smoke test showed no leaks. The #3 injector connector had a ...
August 18, 2011
2001 Toyota Corolla LE 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2J1BR12E01
P0303: Cylinder 3 Misfire Detected. Car came in with severe misfire on cyl 3 with above codes.Customer states light has been on about 2 weeks and misfire has gotten progressively worse. She has owned it since May of this year. Pull COP, pull plug, semi oily deposit bridging center electrode to g...
August 18, 2011
2008 Ford F-450 Super Duty XL 6.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDXX47Y8E
Has rough idle like misfire, sometime wil set check engine light on. Black smoke sometimes and no power. Code p0171,p0300,p3316 keeps coming back.
August 19, 2011
2001 Toyota Corolla LE 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2J1BR12E01
P0303: Cylinder 3 Misfire Detected. Car came in with severe misfire on cyl 3 with above codes.Customer states light has been on about 2 weeks and misfire has gotten progressively worse. She has owned it since May of this year. Pull COP, pull plug, semi oily deposit bridging center electrode to g...
August 20, 2011
2008 Ford F-450 Super Duty XL 6.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDXX47Y8E
Has rough idle like misfire, sometime wil set check engine light on. Black smoke sometimes and no power. Code p0171,p0300,p3316 keeps coming back.
August 22, 2011
2008 Ford F-250 Super Duty FX4 5.4L Misfire VIN: 1FTSX21508
P0303: cylinder 3 misfire. ... sure where to go with this vehicle. flow chart not much help. I have a code P0012 Intake Camshaft Position Timing. I kind of want to change the VCT solenoid on the right side but not sure that will fix the problem. I can also hear some ticking noise in the...
August 23, 2011
2001 Dodge Dakota 3.9L Poor Idle Quality, Misfire VIN: 1B7GL22X01
P0303: Cylinder 3 Misfire Detected. Well, I'm hoping for some good advice here. I'm working on a 2001 dodge dakota 3.9 with a customer complaint of "intermittent no power" and "rough idle". I took the vehicle for a ride and felt the concern. I scanned the vehicle and found no his...
August 25, 2011
2001 Chevrolet Suburban 1500 5.3L Poor Idle Quality, Misfire VIN: 1GNFK16391
P0303: misfire cyl 3. ... otherwise it was a pefect day, truck came in p0303, misfire cyl 3 . misfire only felt at idle, runs strong otherwise. good spark, chked with spark tester traded coils with 1st cyl coil anyway, put in a new plug. inj has pulse, tested with noid lite. compre...
August 29, 2011