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P0304 Diagnostic Trouble Code Discussion for March 2005

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2000 Nissan Altima GLE 2.4L Misfire VIN: 1N4DL01DXY
P0304: Cylinder 4 Misfire Detected. ... sister have a code P0304 cylinder #4 misfire. I checked intake manifold leak near the cylinder 4. I just want to know is it the dealer have recall for this vehicle ? If no recall, does someone has the easy way or short cut to replace this intake manifold g...
March 05, 2005
1996 Jeep Grand Cherokee Laredo 4.0L Cuts out, Misfire VIN: 1J4FX5857T
P0304: Cylinder 4 Misfire Detected. Jeep arrived in shop for a cold start complaint. It ran fair when warmed up but had to be ambiant temp to reproduce problem. The SES light yielded a cam or crank intermittent failure that led me to a underhood exam only to find that this had been someone elses...
March 10, 2005
1998 Ford F-250 Lariat 4.6L Poor Idle Quality, Misfire, Hard Start VIN: 1FTRX2766W
P0304: Fault Cylinder 4 Misfire Detected. Hello All, I am looking for some help before this thing eats my next weeks meals. It has had my last two already. Truck came in missing with 304, 171 and 174 codes and fuel trim at 25%. I put in plugs, wires and cleaned the MAF. When I got done the thing still...
March 15, 2005
2002 Mazda MPV EX 3.0L No Start VIN: JM3LW28J32
P0304: Cylinder 4 Misfire Detected. help mazda gurus. this is an eversence vehicle. eversence you changed my oil the vehicle will not start. the vehicle does crank but no start. pulled codes and scan data first. scan data is really strange. i have no reading from the o2 sensors and the ect actua...
March 15, 2005
2000 Volkswagen Jetta GLS 2.8L Misfire VIN: 3VWSE29M9Y
P0304: cylinder 4 misfire detected. cylinder 4 has a dead miss at idle,cruise,and on accel . hot or cold. ignition patterns are ok , swapped plugs no change,swappped plug wires no change, did injector pressure drop test ,found #4 ingector was 15 psi lower then other ingectors . replaced #4 injec...
March 15, 2005
1996 Chevrolet C1500 5.7L Misfire
P0304: Cylinder 4 Misfire Detected. First how are all you guys doing. I hope you are doing better than me and this truck that I am have a heck of a time with. First this truck was a 4.3 and the customer had somebody else drop 5.7 in it. customer states truck ran fine for a few days and then sudd...
March 16, 2005
2001 Ford Mustang 3.8L Misfire, MIL Lamp on VIN: 1FAFP40441
P0304: cylinder missfire. thanks for any help...the customer has left but would be interested in any info..the car came in with a bad missfire, we checked ignition, fuel pressure, vacuum leaks( we could not see any smoke), converter, cleaned injectors( did not make a differance when we...
March 19, 2005
1997 Nissan 200SX SE-R 2.0L Hesitation, Misfire, MIL Lamp on VIN: 1N4BB42D1V
P0304: Cylinder 4 Misfire Detected. hello, This 200 sx came to me for a check engine light(po304) & misfire under load. I was unable to get a dedicated mis on cyl. #4 ,seemed to be affecting all cyls.At this time I replaced (cap/rotor/wires/plugs). WOW same problem.Actually was the EGR valve...
March 21, 2005
2000 Honda Accord EX 3.0L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: 1HGCG1658Y
P0304: Cylinder 4 Misfire Detected. hi all Honda Tech: I am posting this for another shop. Car had been to three different Dealer. and two other shop. can't seem to fix the problem. dealer and other shop replace a lot of parts. but problem remain. cold start is perfect never had a problem. it al...
March 22, 2005
2000 Jaguar S-Type 4.0L Misfire, MIL Lamp on VIN: SAJDA01D9Y
P0304: cylinder misfire 4. I know what has happened, I want to know why and how to remedy it? Misfires happened after some severe rainstorms that customer drove through. Cylinders 3 & 4 had misfires and #4 set the light. I found alot of moisture(water, no oil) around and on #3 &...
March 24, 2005
1997 Hyundai Accent GS 1.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: KMHVD34N8V
P0304: Cylinder 4 Misfire Detected. ... hesitates, unable to clear code P0304 from computer, cannot set other codes when trying to create another code. When we remove the cam sensor and crank sensor the car would stay running and will restart with them diconnected.
March 28, 2005
2002 Chrysler PT Cruiser Dream 2.4L Poor Idle Quality, MIL Lamp on VIN: 3C8FY68BX2
P0304: Cylinder 4 Misfire Detected. still have intermittent rough idle - had po304 and misfires on counter prior to motor vac - after no mil no misfires - we are getting a spike in spark advance at idle will jump from 14-128 - check for vacuum leaks and none found - fuel trims are good - evap du...
March 29, 2005
2002 Ford E-150 Econoline 4.2L Misfire, MIL Lamp on VIN: 1FTRE1462H
P0304: miss on cly. 4. any help you guy's could give we would be thankful.
March 29, 2005
2001 Dodge Ram 1500 Van 5.2L Hesitation, Misfire, MIL Lamp on VIN: 1B7HC13Y71
P0304: Cylinder 4 Misfire Detected. Started out with what seem to be a simple tune up. Came in with complaint of check engine light and engine miss. Scanned computer and found code PO304 cylinder #4 misfire detected. With the low mileage I just pull the plugs to check them. regular plugs so repl...
March 31, 2005
1998 Mazda MPV ES 3.0L Misfire, MIL Lamp on VIN: JM3LV5237W
P0304: Cylinder 4 Misfire Detected. Found bad wire replaced wires plugs and performed 60K. came back with same code. Did Fuel injection service, back again. Plug firing voltages are 20 to 24 KV across, RPM drop shows 40 RPM on all cylinders. No vacuum leaks found. Checked for TSB's on All Data.
March 31, 2005
2000 Nissan Altima GLE 2.4L Misfire VIN: 1N4DL01DXY
P0304: Cylinder 4 Misfire Detected. ... sister have a code P0304 cylinder #4 misfire. I checked intake manifold leak near the cylinder 4. I just want to know is it the dealer have recall for this vehicle ? If no recall, does someone has the easy way or short cut to replace this intake manifold g...
March 05, 2005
1996 Jeep Grand Cherokee Laredo 4.0L Cuts out, Misfire VIN: 1J4FX5857T
P0304: Cylinder 4 Misfire Detected. Jeep arrived in shop for a cold start complaint. It ran fair when warmed up but had to be ambiant temp to reproduce problem. The SES light yielded a cam or crank intermittent failure that led me to a underhood exam only to find that this had been someone elses...
March 10, 2005
1998 Ford F-250 Lariat 4.6L Poor Idle Quality, Misfire, Hard Start VIN: 1FTRX2766W
P0304: Fault Cylinder 4 Misfire Detected. Hello All, I am looking for some help before this thing eats my next weeks meals. It has had my last two already. Truck came in missing with 304, 171 and 174 codes and fuel trim at 25%. I put in plugs, wires and cleaned the MAF. When I got done the thing still...
March 15, 2005
2002 Mazda MPV EX 3.0L No Start VIN: JM3LW28J32
P0304: Cylinder 4 Misfire Detected. help mazda gurus. this is an eversence vehicle. eversence you changed my oil the vehicle will not start. the vehicle does crank but no start. pulled codes and scan data first. scan data is really strange. i have no reading from the o2 sensors and the ect actua...
March 15, 2005
2000 Volkswagen Jetta GLS 2.8L Misfire VIN: 3VWSE29M9Y
P0304: cylinder 4 misfire detected. cylinder 4 has a dead miss at idle,cruise,and on accel . hot or cold. ignition patterns are ok , swapped plugs no change,swappped plug wires no change, did injector pressure drop test ,found #4 ingector was 15 psi lower then other ingectors . replaced #4 injec...
March 15, 2005
1996 Chevrolet C1500 5.7L Misfire
P0304: Cylinder 4 Misfire Detected. First how are all you guys doing. I hope you are doing better than me and this truck that I am have a heck of a time with. First this truck was a 4.3 and the customer had somebody else drop 5.7 in it. customer states truck ran fine for a few days and then sudd...
March 16, 2005
2001 Ford Mustang 3.8L Misfire, MIL Lamp on VIN: 1FAFP40441
P0304: cylinder missfire. thanks for any help...the customer has left but would be interested in any info..the car came in with a bad missfire, we checked ignition, fuel pressure, vacuum leaks( we could not see any smoke), converter, cleaned injectors( did not make a differance when we...
March 19, 2005
1997 Nissan 200SX SE-R 2.0L Hesitation, Misfire, MIL Lamp on VIN: 1N4BB42D1V
P0304: Cylinder 4 Misfire Detected. hello, This 200 sx came to me for a check engine light(po304) & misfire under load. I was unable to get a dedicated mis on cyl. #4 ,seemed to be affecting all cyls.At this time I replaced (cap/rotor/wires/plugs). WOW same problem.Actually was the EGR valve...
March 21, 2005
2000 Honda Accord EX 3.0L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: 1HGCG1658Y
P0304: Cylinder 4 Misfire Detected. hi all Honda Tech: I am posting this for another shop. Car had been to three different Dealer. and two other shop. can't seem to fix the problem. dealer and other shop replace a lot of parts. but problem remain. cold start is perfect never had a problem. it al...
March 22, 2005
2000 Jaguar S-Type 4.0L Misfire, MIL Lamp on VIN: SAJDA01D9Y
P0304: cylinder misfire 4. I know what has happened, I want to know why and how to remedy it? Misfires happened after some severe rainstorms that customer drove through. Cylinders 3 & 4 had misfires and #4 set the light. I found alot of moisture(water, no oil) around and on #3 &...
March 24, 2005
1997 Hyundai Accent GS 1.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: KMHVD34N8V
P0304: Cylinder 4 Misfire Detected. ... hesitates, unable to clear code P0304 from computer, cannot set other codes when trying to create another code. When we remove the cam sensor and crank sensor the car would stay running and will restart with them diconnected.
March 28, 2005
2002 Chrysler PT Cruiser Dream 2.4L Poor Idle Quality, MIL Lamp on VIN: 3C8FY68BX2
P0304: Cylinder 4 Misfire Detected. still have intermittent rough idle - had po304 and misfires on counter prior to motor vac - after no mil no misfires - we are getting a spike in spark advance at idle will jump from 14-128 - check for vacuum leaks and none found - fuel trims are good - evap du...
March 29, 2005
2002 Ford E-150 Econoline 4.2L Misfire, MIL Lamp on VIN: 1FTRE1462H
P0304: miss on cly. 4. any help you guy's could give we would be thankful.
March 29, 2005
2001 Dodge Ram 1500 Van 5.2L Hesitation, Misfire, MIL Lamp on VIN: 1B7HC13Y71
P0304: Cylinder 4 Misfire Detected. Started out with what seem to be a simple tune up. Came in with complaint of check engine light and engine miss. Scanned computer and found code PO304 cylinder #4 misfire detected. With the low mileage I just pull the plugs to check them. regular plugs so repl...
March 31, 2005
1998 Mazda MPV ES 3.0L Misfire, MIL Lamp on VIN: JM3LV5237W
P0304: Cylinder 4 Misfire Detected. Found bad wire replaced wires plugs and performed 60K. came back with same code. Did Fuel injection service, back again. Plug firing voltages are 20 to 24 KV across, RPM drop shows 40 RPM on all cylinders. No vacuum leaks found. Checked for TSB's on All Data.
March 31, 2005