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P0304 Diagnostic Trouble Code Discussion for June 2013

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2002 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on VIN: 1J4GW48S82
P0304: Cylinder 4 Misfire Detected. I have 2002 Jeep with 4.0L If you rev up to 1500rpm in nuetral. #3-#4 misfires start count up, except engine is not misfiring. After it a few seconds the PCM shuts off #4 injector,but not #3. If you shut off vehicle and start it back up, it starts all over aga...
June 04, 2013
2004 Honda Civic Hybrid 1.3L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: JHMES96554
P0304: Cylinder 4 Misfire Detected. ... retrieved the codes. P0300, p0301, p0302, p0303, p0304. When i drive it, it jumps and hops and binds. The best way to describe its symptom is if (i wide open throttled on a patch of ice and the tcs ...
June 06, 2013
2004 Honda Civic Hybrid 1.3L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: JHMES96554
P0304: Cylinder 4 Misfire Detected. ... retrieved the codes. P0300, p0301, p0302, p0303, p0304. When i drive it, it jumps and hops and binds. The best way to describe its symptom is if (i wide open throttled on a patch of ice and the tcs ...
June 07, 2013
1998 Chevrolet Prizm 1.8L Hesitation, Misfire VIN: 1Y1SK5289W
P0304: cylinder 4 misfire. I need a hand with this car its killing me,this was brought to me with a complaint of no power.I scanned vehicle and found lean codes and misfire codes.I then checked fuel trims short term was at 20% and long term at 40% so we have a lean condition. Smoke test...
June 08, 2013
2004 Saturn Vue Red Line 3.5L Stall, Misfire, MIL Lamp on VIN: 5GZCZ63464
P0304: Cylinder 4 Misfire Detected. ... P0301, P0302, P0303, P0304, P0305, P0306. Vehicle just had a tune-up in Jan. this year. According to "Misfire" Scan data # 2 & # 3 are the worst, some times the only two that are misfiring. Swapped Coils with ...
June 10, 2013
2007 BMW X3 3.0si 3.0L Hesitation, Misfire, MIL Lamp on VIN: WBXPC93437
P0304: misfire cylinder 4. accidently wrote in the last question
June 20, 2013
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WVWPD63B13
P0304: 4 miss. Car misfires and random misfires on all cylinders which results in engine and car shaking. I have changed all spark plugs, ignition coils and even changed the timing belt to make sure it was correct. I found a cracked check valve and a cracked crank vent tube ...
June 21, 2013
2001 GMC Sonoma SLS 4.3L MIL Lamp on, Mystery Misfire VIN: 1GTDT13W11
P0304: Cylinder 4 Misfire Detected. First the history. Lower intake lets go, customer takes to a friend who does the job, who does it right, changes the oil, takes it for a spin, now it has a crank sensor code, after the second sensor we get it. Take it out, it is scratched by the reluctor. We g...
June 26, 2013
2001 GMC Sonoma SLS 4.3L MIL Lamp on VIN: 1GTDT13W11
P0304: Cylinder 4 Misfire Detected. ... far it was driven before repair, never had a check engine light until intake repair. We believe the customer. After intake repair, they got a crank sensor code. Replaced sensor, still got a code after driving, replaced sensor again. Now we get it. Pull the...
June 27, 2013
2001 GMC Sonoma SLS 4.3L MIL Lamp on, Mystery Misfire VIN: 1GTDT13W11
P0304: Cylinder 4 Misfire Detected. First the history. Lower intake lets go, customer takes to a friend who does the job, who does it right, changes the oil, takes it for a spin, now it has a crank sensor code, after the second sensor we get it. Take it out, it is scratched by the reluctor. We g...
June 28, 2013
2007 Jeep Liberty Sport 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GL48K17
P0304: Cylinder 4 Misfire Detected. I am Chrysler tech working at a dealer. I rechecked cam valve timing. All ok. From a other used car I switched over cam and crank sensor. running compression-static comp-cylinder leakdown test compared to other bank is ok. Vacuum is steady at 18-17 inches. Pcm...
June 29, 2013
2002 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on VIN: 1J4GW48S82
P0304: Cylinder 4 Misfire Detected. I have 2002 Jeep with 4.0L If you rev up to 1500rpm in nuetral. #3-#4 misfires start count up, except engine is not misfiring. After it a few seconds the PCM shuts off #4 injector,but not #3. If you shut off vehicle and start it back up, it starts all over aga...
June 04, 2013
2004 Honda Civic Hybrid 1.3L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: JHMES96554
P0304: Cylinder 4 Misfire Detected. ... p0301, p0302, p0303, p0304. When i drive it, it jumps and hops and binds. The best way to describe its symptom is if (i wide open throttled on a patch of ice and the tcs ...
June 06, 2013
2004 Honda Civic Hybrid 1.3L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: JHMES96554
P0304: Cylinder 4 Misfire Detected. ... p0301, p0302, p0303, p0304. When i drive it, it jumps and hops and binds. The best way to describe its symptom is if (i wide open throttled on a patch of ice and the tcs ...
June 07, 2013
1998 Chevrolet Prizm 1.8L Hesitation, Misfire VIN: 1Y1SK5289W
P0304: cylinder 4 misfire. I need a hand with this car its killing me,this was brought to me with a complaint of no power.I scanned vehicle and found lean codes and misfire codes.I then checked fuel trims short term was at 20% and long term at 40% so we have a lean condition. Smoke test...
June 08, 2013
2004 Saturn Vue Red Line 3.5L Stall, Misfire, MIL Lamp on VIN: 5GZCZ63464
P0304: Cylinder 4 Misfire Detected. ... P0301, P0302, P0303, P0304, P0305, P0306. Vehicle just had a tune-up in Jan. this year. According to "Misfire" Scan data # 2 & # 3 are the worst, some times the only two that are misfiring. Swapped Coils with ...
June 10, 2013
2007 BMW X3 3.0si 3.0L Hesitation, Misfire, MIL Lamp on VIN: WBXPC93437
P0304: misfire cylinder 4. accidently wrote in the last question
June 20, 2013
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WVWPD63B13
P0304: 4 miss. Car misfires and random misfires on all cylinders which results in engine and car shaking. I have changed all spark plugs, ignition coils and even changed the timing belt to make sure it was correct. I found a cracked check valve and a cracked crank vent tube ...
June 21, 2013
2001 GMC Sonoma SLS 4.3L MIL Lamp on, Mystery Misfire VIN: 1GTDT13W11
P0304: Cylinder 4 Misfire Detected. First the history. Lower intake lets go, customer takes to a friend who does the job, who does it right, changes the oil, takes it for a spin, now it has a crank sensor code, after the second sensor we get it. Take it out, it is scratched by the reluctor. We g...
June 26, 2013
2001 GMC Sonoma SLS 4.3L MIL Lamp on VIN: 1GTDT13W11
P0304: Cylinder 4 Misfire Detected. ... far it was driven before repair, never had a check engine light until intake repair. We believe the customer. After intake repair, they got a crank sensor code. Replaced sensor, still got a code after driving, replaced sensor again. Now we get it. Pull the...
June 27, 2013
2001 GMC Sonoma SLS 4.3L MIL Lamp on, Mystery Misfire VIN: 1GTDT13W11
P0304: Cylinder 4 Misfire Detected. First the history. Lower intake lets go, customer takes to a friend who does the job, who does it right, changes the oil, takes it for a spin, now it has a crank sensor code, after the second sensor we get it. Take it out, it is scratched by the reluctor. We g...
June 28, 2013
2007 Jeep Liberty Sport 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GL48K17
P0304: Cylinder 4 Misfire Detected. I am Chrysler tech working at a dealer. I rechecked cam valve timing. All ok. From a other used car I switched over cam and crank sensor. running compression-static comp-cylinder leakdown test compared to other bank is ok. Vacuum is steady at 18-17 inches. Pcm...
June 29, 2013