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P0304 Diagnostic Trouble Code Discussion for October 2005

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1996 Dodge Avenger ES 2.5L MIL Lamp on VIN: 4B3AU52NOT
P0304: Cylinder 4 Misfire Detected. Evening Techs This car was giving to one our customers with a MIL light on and the car ran fine. what I found was at around 60 MPH at cruise the mil light will start flashing, but car runs fine-didn"t feel any miss or stumble. I pulled over and cleared co...
October 05, 2005
1997 Mercury Sable GS 3.0L MIL Lamp on VIN: 1MELM55U4V
P0304: Misfire Cyl 4. ... Found code P0340 - Cam Sensor. Inspected Cam sensor and synchronizer and found both broken. Replaced synchronizer and sensor using Mitchell's guide for replacement using TDC cylinder #1 and using OTC tool. Took vehicle for test drive and MIL light returned...
October 06, 2005
1997 Audi A4 2.8L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: WAUEA88D6V
P0304: Cyl 4 misfire. ... 2.8l sohc engine. The car has no power on accelleration and there were several codes stored in the system. Erased codes and it seemed that p0304 and p0305 come back on every road test. Swapped injectors, wires, checked com...
October 12, 2005
2000 Ford Explorer XLS 4.0L Misfire, MIL Lamp on VIN: 5FMYU60E6Y
P0304: 4 misfire. ... C/E LIGHT ON AFTER HARD ACCELERATION. TESTED IGNITION & FUEL PRESSURE ALONG WITH PRESSURE DROP. AFTER DUPLICATING PROBLEM, PERFORMED COMPRESSION TEST & FOUND WEAK VALVE SPRINGS. REPLACED SPRINGS, PLUGS & IGNITION CABLES. AFTER REPAIR P0301&...
October 12, 2005
1997 Audi A4 2.8L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: WAUEA88D6V
P0304: Cyl 4 misfire. ... 2.8l sohc engine. The car has no power on accelleration and there were several codes stored in the system. Erased codes and it seemed that p0304 and p0305 come back on every road test. Swapped injectors, wires, checked com...
October 14, 2005
1996 Ford Escort 1.9L Misfire, MIL Lamp on VIN: 1FALP14JTT
P0304: cylinder 4 misfire. ... vehicle drove good except s.e.s. light on. pulled in shop had code p0304 cyl#4 misfire, did basic checks found orig. plugs and wires and pcv. airfilter broken and old fuel filter and dirty t-body did serv. with new parts. and cleared code. redrove car all ...
October 14, 2005
1996 Nissan Pickup SE 2.4L Misfire VIN: 1N6SD16S5T
P0304: Cylinder 4 Misfire Detected. Hi to all that can help. We were about to let the car go and decided to give you guys/gals a shot. Problem only happens at 2000 to 3,000 rpm, has a number 4 missfire. Did replace EGR and back pressure valve. Unplugging EGR valve, there is no problem. I did s...
October 19, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0304: Cylinder 4 Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 21, 2005
1996 Nissan Pickup SE 2.4L Misfire VIN: 1N6SD16S5T
P0304: Cylinder 4 Misfire Detected. Hi to all that can help. We were about to let the car go and decided to give you guys/gals a shot. Problem only happens at 2000 to 3,000 rpm, has a number 4 missfire. Did replace EGR and back pressure valve. Unplugging EGR valve, there is no problem. I did s...
October 21, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0304: Cylinder 4 Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 22, 2005
2003 Ford Ranger Edge 3.0L Hesitation, Misfire, MIL Lamp on VIN: 1FTYR14V53
P0304: Cylinder 4 missfire. Customer complains of MIL on, loss of power, and a strange squeel noise. Complaint confirmed by tech. Noise sounds like a belt slipping. Belts are all ok and are not creating the noise. Noise is not noticed at idle. Comes in at about 1600 rpm and is extreamly ...
October 24, 2005
2001 Subaru Outback 2.5L Poor Idle Quality, Surge, Misfire, ONLY ON IDLE VIN: 4S3BE6862Y
P0304: Cylinder 4 Misfire Detected. we have checked : primary and secondary ignition,cam and crank signals,belt timing ( with the marks on the belt ),removed the exhaust to inspect other guides,idle circuit,compression test and vacuum,all tune up parts and all checked out good.we can duplicate t...
October 26, 2005
2001 Subaru Outback 2.5L Poor Idle Quality, Surge, Misfire, ONLY ON IDLE VIN: 4S3BE6862Y
P0304: Cylinder 4 Misfire Detected. we have checked : primary and secondary ignition,cam and crank signals,belt timing ( with the marks on the belt ),removed the exhaust to inspect other guides,idle circuit,compression test and vacuum,all tune up parts and all checked out good.we can duplicate t...
October 27, 2005
2000 Audi S4 2.7L Misfire VIN: WAUDD68D0Y
P0304: cyl 4 missfire. having a little missfire problem with this car. It is missfiring on cyl #1,2,3,&4. Customer was here about a week ago with #5 missing and a month before that with #1 missing. But no o2 fault then. Checked for carbon and all cyl's looked fine, last week. It...
October 28, 2005
1998 Lexus ES300 3.0L Misfire, MIL Lamp on VIN: JT8BF28G0W
P0304: Cylinder 4 Misfire Detected. Ok Im stumped on this one... I have this lexus that the best description the customer can tell me is that this problem happens after being driven for 50+ miles. I was able to duplicate it once. It misfires the MIL light comes on and the above codes are stored....
October 28, 2005
1996 Dodge Avenger ES 2.5L MIL Lamp on VIN: 4B3AU52NOT
P0304: Cylinder 4 Misfire Detected. Evening Techs This car was giving to one our customers with a MIL light on and the car ran fine. what I found was at around 60 MPH at cruise the mil light will start flashing, but car runs fine-didn"t feel any miss or stumble. I pulled over and cleared co...
October 05, 2005
1997 Mercury Sable GS 3.0L MIL Lamp on VIN: 1MELM55U4V
P0304: Misfire Cyl 4. ... Found code P0340 - Cam Sensor. Inspected Cam sensor and synchronizer and found both broken. Replaced synchronizer and sensor using Mitchell's guide for replacement using TDC cylinder #1 and using OTC tool. Took vehicle for test drive and MIL light returned...
October 06, 2005
1997 Audi A4 2.8L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: WAUEA88D6V
P0304: Cyl 4 misfire. ... 2.8l sohc engine. The car has no power on accelleration and there were several codes stored in the system. Erased codes and it seemed that p0304 and p0305 come back on every road test. Swapped injectors, wires, checked com...
October 12, 2005
2000 Ford Explorer XLS 4.0L Misfire, MIL Lamp on VIN: 5FMYU60E6Y
P0304: 4 misfire. ... C/E LIGHT ON AFTER HARD ACCELERATION. TESTED IGNITION & FUEL PRESSURE ALONG WITH PRESSURE DROP. AFTER DUPLICATING PROBLEM, PERFORMED COMPRESSION TEST & FOUND WEAK VALVE SPRINGS. REPLACED SPRINGS, PLUGS & IGNITION CABLES. AFTER REPAIR P0301&...
October 12, 2005
1997 Audi A4 2.8L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: WAUEA88D6V
P0304: Cyl 4 misfire. ... 2.8l sohc engine. The car has no power on accelleration and there were several codes stored in the system. Erased codes and it seemed that p0304 and p0305 come back on every road test. Swapped injectors, wires, checked com...
October 14, 2005
1996 Ford Escort 1.9L Misfire, MIL Lamp on VIN: 1FALP14JTT
P0304: cylinder 4 misfire. ... vehicle drove good except s.e.s. light on. pulled in shop had code p0304 cyl#4 misfire, did basic checks found orig. plugs and wires and pcv. airfilter broken and old fuel filter and dirty t-body did serv. with new parts. and cleared code. redrove car all ...
October 14, 2005
1996 Nissan Pickup SE 2.4L Misfire VIN: 1N6SD16S5T
P0304: Cylinder 4 Misfire Detected. Hi to all that can help. We were about to let the car go and decided to give you guys/gals a shot. Problem only happens at 2000 to 3,000 rpm, has a number 4 missfire. Did replace EGR and back pressure valve. Unplugging EGR valve, there is no problem. I did s...
October 19, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0304: Cylinder 4 Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 21, 2005
1996 Nissan Pickup SE 2.4L Misfire VIN: 1N6SD16S5T
P0304: Cylinder 4 Misfire Detected. Hi to all that can help. We were about to let the car go and decided to give you guys/gals a shot. Problem only happens at 2000 to 3,000 rpm, has a number 4 missfire. Did replace EGR and back pressure valve. Unplugging EGR valve, there is no problem. I did s...
October 21, 2005
1997 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1B7HF16ZXV
P0304: Cylinder 4 Misfire Detected. ... hard to start problem.customer asked for a starting and charging system check it checked out ok besides a bad belt and tens. he came back on tuesday to have belt and tens. replaced he asked if we could check his dist. cap due to a broken screw. we replaced...
October 22, 2005
2003 Ford Ranger Edge 3.0L Hesitation, Misfire, MIL Lamp on VIN: 1FTYR14V53
P0304: Cylinder 4 missfire. Customer complains of MIL on, loss of power, and a strange squeel noise. Complaint confirmed by tech. Noise sounds like a belt slipping. Belts are all ok and are not creating the noise. Noise is not noticed at idle. Comes in at about 1600 rpm and is extreamly ...
October 24, 2005
2001 Subaru Outback 2.5L Poor Idle Quality, Surge, Misfire, ONLY ON IDLE VIN: 4S3BE6862Y
P0304: Cylinder 4 Misfire Detected. we have checked : primary and secondary ignition,cam and crank signals,belt timing ( with the marks on the belt ),removed the exhaust to inspect other guides,idle circuit,compression test and vacuum,all tune up parts and all checked out good.we can duplicate t...
October 26, 2005
2001 Subaru Outback 2.5L Poor Idle Quality, Surge, Misfire, ONLY ON IDLE VIN: 4S3BE6862Y
P0304: Cylinder 4 Misfire Detected. we have checked : primary and secondary ignition,cam and crank signals,belt timing ( with the marks on the belt ),removed the exhaust to inspect other guides,idle circuit,compression test and vacuum,all tune up parts and all checked out good.we can duplicate t...
October 27, 2005
2000 Audi S4 2.7L Misfire VIN: WAUDD68D0Y
P0304: cyl 4 missfire. having a little missfire problem with this car. It is missfiring on cyl #1,2,3,&4. Customer was here about a week ago with #5 missing and a month before that with #1 missing. But no o2 fault then. Checked for carbon and all cyl's looked fine, last week. It...
October 28, 2005
1998 Lexus ES300 3.0L Misfire, MIL Lamp on VIN: JT8BF28G0W
P0304: Cylinder 4 Misfire Detected. Ok Im stumped on this one... I have this lexus that the best description the customer can tell me is that this problem happens after being driven for 50+ miles. I was able to duplicate it once. It misfires the MIL light comes on and the above codes are stored....
October 28, 2005