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P0304 Diagnostic Trouble Code Discussion for February 2006

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1998 Mercedes-Benz C230 2.3L Misfire, MIL Lamp on VIN: WDBHA23GXW
P0304: 4 cyl. misfire. Car came in running rough and check engine light on with two codes...PO304 and PO460. Customer knows it needs fuel level sensors but doesn't want to do that at this time. The #4 plug hole was full of oil so I replaced the valve cover gasket, plug connectors, a...
February 02, 2006
1998 Ford Explorer XL 4.0L Misfire, MIL Lamp on VIN: 1FMZU34X7W
P0304: misfire in 4 cylinder. We have checked the "fixes" in the database and do not see any that totally apply. Vehicle came in with a "miss" and check engine lamp lit. Code indicates misfire hits in #4 cylinder. The misfire is not a complete "dead" miss and it wil...
February 03, 2006
2000 Mazda MPV DX 2.5L No Start VIN: JM3LW28G8Y
P0304: Cylinder 4 Misfire Detected. ... P0031-low O2 circuit voltage on HO2SII, P0174-bank 2 lean, P0304-cylinder #4 misfire detected. It is also ready for a local OBDII emissions test. We were unable to access the OBDII side of this computer with our Genesis, so ...
February 07, 2006
1996 Nissan Altima GLE 2.4L Misfire, MIL Lamp on VIN: 1N4BU31D5T
P0304: Cylinder 4 Misfire Detected. Car came in with MIL and obvious misfire. Another shop installed related repair parts. We installed a new NGK plugs and (genuine nissan) distributor to fix internal oil seal leak and (hopefully) remedy the misfire. Resetting the throttle cable cleared the P050...
February 07, 2006
2000 Nissan Altima SE 2.4L Misfire VIN: 1JNGH42AC2
P0304: Cylinder 4 Misfire Detected. Hello fellow techs, We have been seeing a bunch of fairly late model Altimas with a #4 cylinder misfire due to a leaking intake manifold gasket at the cylinder head. I've done 2 myself, and I think it's one of the most miserable jobs I've ever seen. The local...
February 08, 2006
2000 Saturn LS2 3.0L Misfire, MIL Lamp on VIN: 1G8JW52R7Y
P0304: Cylinder 4 Misfire Detected. ... I hope you can help me. This car came in with 2 codes (P0300 & P0304). First thing my tech did was look at missfire data, on our Snap-On MODUS, and noticed cylinder #2 was slowly counting a missfire, but the car was definitly not missfiring. He removed...
February 08, 2006
1998 Ford Explorer XL 4.0L Misfire, MIL Lamp on VIN: 1FMZU34X7W
P0304: misfire in 4 cylinder. We have checked the "fixes" in the database and do not see any that totally apply. Vehicle came in with a "miss" and check engine lamp lit. Code indicates misfire hits in #4 cylinder. The misfire is not a complete "dead" miss and it wil...
February 10, 2006
2001 Ford Explorer XLS 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU72E01
P0304: mis-fire cyl 4. ... to me with a request for a tune up as it had a rough idle.MIL was on at that time with a p0304 present, misfiring cylinder #4. I got the owner to allow me to properly diag the problem. It seemed it was suffering from a somewhat comman Ford intake sealing p...
February 13, 2006
1997 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMDU34E7V
P0304: Miss on 4. Greetings folks. This little nightmare ('97 for Explorer 4.0 sohc)has been bounced liked a hot potato from shop to shop & has unfortunately landed in mine. Initially came in with every code imaginable from multiple misfires, lean exhaust, & EVAP faul...
February 16, 2006
2000 Mercedes-Benz ML320 3.2L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 4JGAB54E8Y
Hello guy's I hope you can help me on this one. Begining to look like a problem child and want to get some input before I get too deep. This car used car dealer vehicle so no repair history is available. vehicle came in with complaint of cold hesitation and mi...
February 19, 2006
2001 Mercedes-Benz ML320 3.2L Hesitation, Misfire, MIL Lamp on VIN: 4JGAB54E41
P0304: miss fire 4. FELLOW TECHS THIS ML 320 IS GIVING ME A PROBLEM,ITS GIVING ME A CYL #3 AND #6 MISSFIRE CODE SOME TIMES #4. ON A REGULAR TEST DRIVE ITS FINE I DROVE IT FOR A HALF HOUR NO PROBLEM NO CODES. I NOTICED THAT IT WOULD ACT UP ONLY WHEN I PUSHED IT HARD AND THE TACH ...
February 28, 2006
1998 Mercedes-Benz C230 2.3L Misfire, MIL Lamp on VIN: WDBHA23GXW
P0304: 4 cyl. misfire. Car came in running rough and check engine light on with two codes...PO304 and PO460. Customer knows it needs fuel level sensors but doesn't want to do that at this time. The #4 plug hole was full of oil so I replaced the valve cover gasket, plug connectors, a...
February 02, 2006
1998 Ford Explorer XL 4.0L Misfire, MIL Lamp on VIN: 1FMZU34X7W
P0304: misfire in 4 cylinder. We have checked the "fixes" in the database and do not see any that totally apply. Vehicle came in with a "miss" and check engine lamp lit. Code indicates misfire hits in #4 cylinder. The misfire is not a complete "dead" miss and it wil...
February 03, 2006
2000 Mazda MPV DX 2.5L No Start VIN: JM3LW28G8Y
P0304: Cylinder 4 Misfire Detected. ... P0031-low O2 circuit voltage on HO2SII, P0174-bank 2 lean, P0304-cylinder #4 misfire detected. It is also ready for a local OBDII emissions test. We were unable to access the OBDII side of this computer with our Genesis, so ...
February 07, 2006
1996 Nissan Altima GLE 2.4L Misfire, MIL Lamp on VIN: 1N4BU31D5T
P0304: Cylinder 4 Misfire Detected. Car came in with MIL and obvious misfire. Another shop installed related repair parts. We installed a new NGK plugs and (genuine nissan) distributor to fix internal oil seal leak and (hopefully) remedy the misfire. Resetting the throttle cable cleared the P050...
February 07, 2006
2000 Nissan Altima SE 2.4L Misfire VIN: 1JNGH42AC2
P0304: Cylinder 4 Misfire Detected. Hello fellow techs, We have been seeing a bunch of fairly late model Altimas with a #4 cylinder misfire due to a leaking intake manifold gasket at the cylinder head. I've done 2 myself, and I think it's one of the most miserable jobs I've ever seen. The local...
February 08, 2006
2000 Saturn LS2 3.0L Misfire, MIL Lamp on VIN: 1G8JW52R7Y
P0304: Cylinder 4 Misfire Detected. ... I hope you can help me. This car came in with 2 codes (P0300 & P0304). First thing my tech did was look at missfire data, on our Snap-On MODUS, and noticed cylinder #2 was slowly counting a missfire, but the car was definitly not missfiring. He removed...
February 08, 2006
1998 Ford Explorer XL 4.0L Misfire, MIL Lamp on VIN: 1FMZU34X7W
P0304: misfire in 4 cylinder. We have checked the "fixes" in the database and do not see any that totally apply. Vehicle came in with a "miss" and check engine lamp lit. Code indicates misfire hits in #4 cylinder. The misfire is not a complete "dead" miss and it wil...
February 10, 2006
2001 Ford Explorer XLS 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU72E01
P0304: mis-fire cyl 4. ... to me with a request for a tune up as it had a rough idle.MIL was on at that time with a p0304 present, misfiring cylinder #4. I got the owner to allow me to properly diag the problem. It seemed it was suffering from a somewhat comman Ford intake sealing p...
February 13, 2006
1997 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMDU34E7V
P0304: Miss on 4. Greetings folks. This little nightmare ('97 for Explorer 4.0 sohc)has been bounced liked a hot potato from shop to shop & has unfortunately landed in mine. Initially came in with every code imaginable from multiple misfires, lean exhaust, & EVAP faul...
February 16, 2006
2000 Mercedes-Benz ML320 3.2L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 4JGAB54E8Y
Hello guy's I hope you can help me on this one. Begining to look like a problem child and want to get some input before I get too deep. This car used car dealer vehicle so no repair history is available. vehicle came in with complaint of cold hesitation and mi...
February 19, 2006
2001 Mercedes-Benz ML320 3.2L Hesitation, Misfire, MIL Lamp on VIN: 4JGAB54E41
P0304: miss fire 4. FELLOW TECHS THIS ML 320 IS GIVING ME A PROBLEM,ITS GIVING ME A CYL #3 AND #6 MISSFIRE CODE SOME TIMES #4. ON A REGULAR TEST DRIVE ITS FINE I DROVE IT FOR A HALF HOUR NO PROBLEM NO CODES. I NOTICED THAT IT WOULD ACT UP ONLY WHEN I PUSHED IT HARD AND THE TACH ...
February 28, 2006