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P0304 Diagnostic Trouble Code Discussion for February 2008

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2001 Ford Taurus SE 3.0L No Power VIN: 1FAFP53271
P0304: mis 4. Hi Everyone! Thanks in advance for your help here. I have here a taurus that has no power on accel, it is the classic symptoms of low fuel pressure or clogged exhaust, the more throttle you give it, the slower it goes, and it just sounds very labored. The misf...
February 01, 2008
1999 Ford Ranger XL 3.0L Misfire VIN: 1FTYR14V9X
P0304: misfire bank four. Have one that is running on three cylinders, codes stored for misfire cylinder 4,5 and 6. All on drivers side of engine. Tried new coil pack with no luck, checked for spark on all three cylinders and spark looked the same as cylinders that are firing correctly...
February 02, 2008
1999 Ford Ranger XL 3.0L Misfire VIN: 1FTYR14V9X
P0304: misfire bank four. Have one that is running on three cylinders, codes stored for misfire cylinder 4,5 and 6. All on drivers side of engine. Tried new coil pack with no luck, checked for spark on all three cylinders and spark looked the same as cylinders that are firing correctly...
February 04, 2008
2002 Ford Escape XLT 3.0L Misfire, MIL Lamp on VIN: 1FMCU04182
P0304: cylinder 4 misfire. hi there fellow techs- i have a escape here with a solid cylinder misfire on #'s 4 and 6 i read previous posts and checked the continuity of the signal wires from the pcm to the affected ignition coils and all is good- i have good compression on both cylinders...
February 04, 2008
2002 Ford Escape XLT 3.0L Misfire, MIL Lamp on VIN: 1FMCU04182
P0304: cylinder 4 misfire. hi there fellow techs- i have a escape here with a solid cylinder misfire on #'s 4 and 6 i read previous posts and checked the continuity of the signal wires from the pcm to the affected ignition coils and all is good- i have good compression on both cylinders...
February 06, 2008
2004 Saturn Vue Red Line 3.5L Misfire VIN: 5GZCZ63454
P0304: Cylinder 4 Misfire Detected. We've got a 2004 Saturn Vue that has an intermitent skip on multiple cylinders but mostly occurs on cyl #2. At times it will run great and other times it will have a major skip. We've swapped coils with a good cyl. but the skip stayed on cylinder #2. Also, som...
February 06, 2008
2006 Toyota Corolla CE 1.8L Misfire, MIL Lamp on VIN: LFMAC22C36
P0304: Cylinder 4 Misfire Detected. the car is china vesion corolla whith 1zz-fe engine MT ,I almost change everything.igniter,injector,ECTS,ect,afm,spark plug.check timing chain is ok.use IT2 add air or reduction fuel,seeIT2 datalist the no.4 misfire count is reduction or zero ,otherwise the no...
February 06, 2008
1996 Lincoln Town Car 4.6L Misfire VIN: 1LNVM82H4T
P0304: cyl 4 missfire. Cyl missfire,check for spark on all cyl very good. Check for injector pulse all good exceot for cyl # 4 & 7 check for power @ injectors red wire ck good. loose negative pulse from PCM. Preform Pinout Test of PCM & Power and grounds ck good even under e...
February 07, 2008
2006 Toyota Corolla CE 1.8L Misfire, MIL Lamp on VIN: LFMAC22C36
P0304: Cylinder 4 Misfire Detected. the car is china vesion corolla whith 1zz-fe engine MT ,I almost change everything.igniter,injector,ECTS,ect,afm,spark plug.check timing chain is ok.use IT2 add air or reduction fuel,seeIT2 datalist the no.4 misfire count is reduction or zero ,otherwise the no...
February 09, 2008
1998 Jeep Wrangler Sahara 4.0L Misfire VIN: 1J4FY49S3W
P0304: Cylinder 4 Misfire Detected. thanks to all who read this. we have this vehicle which is new to the customer and it only misses at cruise and warm. the miss cannot be felt when driving but shows on the misfire moniters on the modis and of course sets codes. we have checked ignition parts, ...
February 15, 2008
1998 Ford Taurus SE 3.0L Stall, MIL Lamp on, clock @ radio loose VIN: 1FAFP57U6W
P0304: cam shaft senser. ... come to stop vehicle will stall, it will start right back up - clock @ radio will loose it memory - it had a p0304 code when it first came, i repaced cam and crank sensers (factory ford parts), i also checked to make shore they were in time using a lab sco...
February 18, 2008
2000 Honda CR-V EX 2.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JHLRD1869Y
P0304: Cylinder 4 Misfire Detected. I have a honda with a misfire that I am unable to pinpoint to any 1 cyl. If I remove a plug wire from any cylinder, the engine RPM's drop drastically. I have replaced timing belt due to mileage and slack between gears, (also w/pump was leaking). I have replace...
February 18, 2008
1997 Nissan Altima GLE 2.4L Misfire, MIL Lamp on VIN: 1N4BU31D3V
P0304: Cylinder 4 Misfire Detected. I have diagnosed a '97 Altima with a cyl #4 misfire. Determined that the EGR ports are restricted on cylinders 1,2,and 3. Does anyone know of a way to clean these ports with out major surgery? Any advise would be greatly appreciated.
February 18, 2008
1999 Lexus RX300 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: JT6GF10U5X
P0304: cyl 4 misfire. Car came to us with the complaint Mil on and runs rough. Upon scanning the system we found the codes recorded. Due to the fact the timing belt had been replaced recently we decided to check cam timing first. We did not find anything out of time (all marks dead...
February 19, 2008
1998 BMW 318i 1.9L Misfire VIN: WBACC0327W
P0304: cylinder 4 misfire. i have this bmw which has a hard start problem when cold.the first start of the day the enine starts but it sounds as if though it was flooded with gas.i let it sit with a fuel pressure gauge installed and monitored my fuel pressure drop thinking possibly the ...
February 21, 2008
2002 Toyota Camry LE 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4T1BF32K22
P0304: Cylinder 4 Misfire Detected. Hello to all you helpful people out there. I hope there are some good toyota techs that can help me out here tonight. I have a 2002 toyota camry that was towed in as undrivable. I was told it was loosing power and then died all together and would not restart. ...
February 28, 2008
2002 Toyota Camry LE 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4T1BF32K22
P0304: Cylinder 4 Misfire Detected. Hello to all you helpful people out there. I hope there are some good toyota techs that can help me out here tonight. I have a 2002 toyota camry that was towed in as undrivable. I was told it was loosing power and then died all together and would not restart. ...
February 29, 2008