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P0304 Diagnostic Trouble Code Discussion for April 2013

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2006 Ford F-150 XLT 5.4L Misfire VIN: 1FTPW14V46
P0304: misfire 4 cylinder. engine runs fine when babied, once the gas is used with some agression #4 will misfire and engine will kick and shake bad, I have taken a look at the springs they appear to be in tact, I did find the exhaust lobe for #4 to show a 1/4 delay in the markings from...
April 03, 2013
2002 Honda Accord LX 2.3L Stall, Misfire, MIL Lamp on VIN: 3HGCG56452
P0304: Cylinder 4 Misfire Detected. ... P0301 and P0304, why is this caused by the distributor, or is it? I told the man to drive his car at least 100 miles, so the rings can completely seat in. So far, he has not done this. Compression has risen to 155 PSI after...
April 03, 2013
2003 Ford Explorer Sport Trac XLS 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU77E03
P0304: Cyl 4 missfire. Any idea will help
April 05, 2013
2002 Honda Accord LX 2.3L Stall, Misfire, MIL Lamp on VIN: 3HGCG56452
P0304: Cylinder 4 Misfire Detected. ... P0301 and P0304, why is this caused by the distributor, or is it? I told the man to drive his car at least 100 miles, so the rings can completely seat in. So far, he has not done this. Compression has risen to 155 PSI after...
April 06, 2013
2003 Volkswagen Jetta GL 2.0L Misfire, MIL Lamp on VIN: 3VWRK69M23
P0304: VAG - 16688 Cylinder Misfire Cylinder 4. ... Blinking. Rough Idle/Misfire, etc. Scanned for codes. retrieved DTC P0300 & P0304. During visual inspection was able to see Cylinder # 4 Ignition wire Arcing on the Cylinder Head. We repl...
April 08, 2013
2002 Honda CR-V LX 2.4L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: SHSRD68412
P0304: Cylinder 4 Misfire Detected. This car when sold will go to high idle and as it gradually comes down it will start misfiring an eventually stall, I can keep it running with my foot on the gas but act like its in fail safe when revved above 2500 rpm's. I put the crank pulley on the white ma...
April 09, 2013
2004 Saturn Vue Red Line 3.5L Misfire, MIL Lamp on VIN: 5GZCZ63424
P0304: Cylinder 4 Misfire Detected. i have checked timing marks twice, checked valve adjustment,install denso iridium plugs, and still check engine light for misfire
April 10, 2013
2009 Mercedes-Benz C230 2.5L Misfire VIN: WDDGF52X39
P0304: misfire number four. Hi i am helping a friend with this 09 c230 v6 it has a misfire 0n number 5 i have swapped the coil, plugs and injector. I compared compression to another cylinder it was ok. I SMOKED intake no leaks found.I don't know where to go but to pull valve cover off.I ...
April 11, 2013
2008 Lexus IS250 2.5L Misfire VIN: JTHBK26288
P0304: cylinder 4 misfire. After driving for serveral minutes vehicle mil starts flashing and goes into fail safe mode. This occurs when accellerating under light throttle. It stays in this mode till shut off and restarted. Then it runs good for a few miles till it does it again. We hav...
April 17, 2013
2002 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on, P1399 VIN: 1HGCG16592
P0304: Cylinder 4 Misfire Detected. started misfiring all of a sudden, check for codes po301-po306 also PO1399 all cylinders. tested egr system ok replaced sparkplugs replaced wornout & Miles, adjusted valves, cleaned injectors checked fuel for excessive alcohol ok
April 18, 2013
2000 Jaguar S-Type 4.0L Misfire VIN: SAJDA01D5Y
Hey guys I need some help. I have this Jag that keeps getting WATER in the spark plug holes and causing a misfire. This appears to only happen after a rain or going through a car wash. The water is getting into multiple cylinders without any set pattern. All o...
April 18, 2013
2008 Lexus IS250 2.5L Misfire VIN: JTHBK26288
P0304: cylinder 4 misfire. After driving for serveral minutes vehicle mil starts flashing and goes into fail safe mode. This occurs when accellerating under light throttle. It stays in this mode till shut off and restarted. Then it runs good for a few miles till it does it again. We hav...
April 18, 2013
1996 Nissan Pathfinder LE 3.3L Cuts out, Stall VIN: JN8AR05Y0T
P0304: Cylinder 4 Misfire Detected. STUMPED IN VIRGINIA!I hava found a few minor problems like a metered air leak in intake hose-replaced.Worn out spark plugs-replaced.Coolant leak on throttle body-repaired and cleaned throttle body.Original problem was for stalling,ran the vehicle on and off fo...
April 19, 2013
2000 Jaguar S-Type 4.0L Misfire VIN: SAJDA01D5Y
Hey guys I need some help. I have this Jag that keeps getting WATER in the spark plug holes and causing a misfire. This appears to only happen after a rain or going through a car wash. The water is getting into multiple cylinders without any set pattern. All o...
April 22, 2013
2001 GMC Jimmy SLE 4.3L Misfire, MIL Lamp on VIN: 1GKDT13W61
Truck runs fine you feel no misfire. It doesn't miss at idle at all on the counters. It misses on cylinders 1-5 above [...] in park(Cylinder # 4 misses almost every count & # 1 is about half as many. The other cylinders only have a few), but only after war...
April 24, 2013
2006 Ford F-150 XLT 5.4L Misfire VIN: 1FTPW14V46
P0304: misfire 4 cylinder. engine runs fine when babied, once the gas is used with some agression #4 will misfire and engine will kick and shake bad, I have taken a look at the springs they appear to be in tact, I did find the exhaust lobe for #4 to show a 1/4 delay in the markings from...
April 03, 2013
2002 Honda Accord LX 2.3L Stall, Misfire, MIL Lamp on VIN: 3HGCG56452
P0304: Cylinder 4 Misfire Detected. ... P0301 and P0304, why is this caused by the distributor, or is it? I told the man to drive his car at least 100 miles, so the rings can completely seat in. So far, he has not done this. Compression has risen to 155 PSI after...
April 03, 2013
2003 Ford Explorer Sport Trac XLS 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU77E03
P0304: Cyl 4 missfire. Any idea will help
April 05, 2013
2002 Honda Accord LX 2.3L Stall, Misfire, MIL Lamp on VIN: 3HGCG56452
P0304: Cylinder 4 Misfire Detected. ... P0301 and P0304, why is this caused by the distributor, or is it? I told the man to drive his car at least 100 miles, so the rings can completely seat in. So far, he has not done this. Compression has risen to 155 PSI after...
April 06, 2013
2003 Volkswagen Jetta GL 2.0L Misfire, MIL Lamp on VIN: 3VWRK69M23
P0304: VAG - 16688 Cylinder Misfire Cylinder 4. ... Blinking. Rough Idle/Misfire, etc. Scanned for codes. retrieved DTC P0300 & P0304. During visual inspection was able to see Cylinder # 4 Ignition wire Arcing on the Cylinder Head. We repl...
April 08, 2013
2002 Honda CR-V LX 2.4L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: SHSRD68412
P0304: Cylinder 4 Misfire Detected. This car when sold will go to high idle and as it gradually comes down it will start misfiring an eventually stall, I can keep it running with my foot on the gas but act like its in fail safe when revved above 2500 rpm's. I put the crank pulley on the white ma...
April 09, 2013
2004 Saturn Vue Red Line 3.5L Misfire, MIL Lamp on VIN: 5GZCZ63424
P0304: Cylinder 4 Misfire Detected. i have checked timing marks twice, checked valve adjustment,install denso iridium plugs, and still check engine light for misfire
April 10, 2013
2009 Mercedes-Benz C230 2.5L Misfire VIN: WDDGF52X39
P0304: misfire number four. Hi i am helping a friend with this 09 c230 v6 it has a misfire 0n number 5 i have swapped the coil, plugs and injector. I compared compression to another cylinder it was ok. I SMOKED intake no leaks found.I don't know where to go but to pull valve cover off.I ...
April 11, 2013
2008 Lexus IS250 2.5L Misfire VIN: JTHBK26288
P0304: cylinder 4 misfire. After driving for serveral minutes vehicle mil starts flashing and goes into fail safe mode. This occurs when accellerating under light throttle. It stays in this mode till shut off and restarted. Then it runs good for a few miles till it does it again. We hav...
April 17, 2013
2002 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on, P1399 VIN: 1HGCG16592
P0304: Cylinder 4 Misfire Detected. started misfiring all of a sudden, check for codes po301-po306 also PO1399 all cylinders. tested egr system ok replaced sparkplugs replaced wornout & Miles, adjusted valves, cleaned injectors checked fuel for excessive alcohol ok
April 18, 2013
2000 Jaguar S-Type 4.0L Misfire VIN: SAJDA01D5Y
Hey guys I need some help. I have this Jag that keeps getting WATER in the spark plug holes and causing a misfire. This appears to only happen after a rain or going through a car wash. The water is getting into multiple cylinders without any set pattern. All o...
April 18, 2013
2008 Lexus IS250 2.5L Misfire VIN: JTHBK26288
P0304: cylinder 4 misfire. After driving for serveral minutes vehicle mil starts flashing and goes into fail safe mode. This occurs when accellerating under light throttle. It stays in this mode till shut off and restarted. Then it runs good for a few miles till it does it again. We hav...
April 18, 2013
1996 Nissan Pathfinder LE 3.3L Cuts out, Stall VIN: JN8AR05Y0T
P0304: Cylinder 4 Misfire Detected. STUMPED IN VIRGINIA!I hava found a few minor problems like a metered air leak in intake hose-replaced.Worn out spark plugs-replaced.Coolant leak on throttle body-repaired and cleaned throttle body.Original problem was for stalling,ran the vehicle on and off fo...
April 19, 2013
2000 Jaguar S-Type 4.0L Misfire VIN: SAJDA01D5Y
Hey guys I need some help. I have this Jag that keeps getting WATER in the spark plug holes and causing a misfire. This appears to only happen after a rain or going through a car wash. The water is getting into multiple cylinders without any set pattern. All o...
April 22, 2013
2001 GMC Jimmy SLE 4.3L Misfire, MIL Lamp on VIN: 1GKDT13W61
Truck runs fine you feel no misfire. It doesn't miss at idle at all on the counters. It misses on cylinders 1-5 above [...] in park(Cylinder # 4 misses almost every count & # 1 is about half as many. The other cylinders only have a few), but only after war...
April 24, 2013