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P0304 Diagnostic Trouble Code Discussion for October 2011

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2001 BMW X5 3.0i 3.0L Misfire, MIL Lamp on VIN: WBAFA53521
P0304: Cylinder 4 misfire. Vehicle came in with all six cylinders misfiring and oxygen sensor bank one and bank two pre cat deviation codes. Found coils burned up from arching and spark plugs mismatched Replaced all coils and spark plugs. Cleared codes and test drove vehicle, vehicle ra...
October 07, 2011
2008 Toyota Highlander 3.5L Misfire, MIL Lamp on VIN: JTEES41A58
P0304: Cyl 4 misfire. Car runs great until you accelerate hard then the ses blinks and misses and low perf. Turn key off and restart runs fine until you accelerate hard then runs poor again with above codes. Nothing in iatn or mitchell. Any toyota techs out there that can help me o...
October 07, 2011
2003 Kia Sorento EX 3.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: KNDJD73333
P0304: Cylinder 4 Misfire Detected. I have ensured the timing marks are good and also replaced the negative battery terminal connector since it was loose on the vehicle. Now, I checked the side of the motor where the misfires are so that I can ensure there is nothing wrong with that catalytic, ...
October 17, 2011
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWMD63823
P0304: misfire 4. Customer brought car in with complaint of running poorly, almost shutting off and flashing check engine light. I pulled the codes and with the 0171 and misfires on all cylinders, I sort of ruled out one or two bad coils. It also had code 0507 but there wasn't...
October 17, 2011
2001 Volkswagen Cabrio GL 2.0L No Start VIN: 3VWBC21V51
P0304: Misfire cyl 4. I hope one of the wizards has been here before. On the way to MA on interstate, engine shut down. Cranks fine but no sign of life. Plugged in with Retriever hand held scanner w/VAG cartridge & retrieve first three codes. Looking up the P1570 indicated the...
October 19, 2011
2001 Ford Windstar SE 3.8L Misfire VIN: 2FMZA52421
P0304: cly 4 misfire. we have an 01 windstar with a #4 misfire under load runs ok until you load it we swapped injectors #4 with#6 miss stays at cyl #4 no coolant loss did all intake gaskets Is there an issue with spark under load? (computer) we pulled valve cover no problem there ...
October 24, 2011
2007 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire VIN: 1FMEU73E17
P0304: misfire cyl. 4. ... The truck came in with a rough idle complaint, off idle engine runs smooth. It has 2 codes P0316 & P0304 . I have swapped things around to try to move misfire but no luck. Performed compression test all cyls. are 160 ps...
October 24, 2011
2001 Ford Windstar SE 3.8L Misfire VIN: 2FMZA52421
P0304: cly 4 misfire. we have an 01 windstar with a #4 misfire under load runs ok until you load it we swapped injectors #4 with#6 miss stays at cyl #4 no coolant loss did all intake gaskets Is there an issue with spark under load? (computer) we pulled valve cover no problem there ...
October 25, 2011
2000 Jaguar Vanden Plas 4.0L Misfire VIN: SAJDA2408Y
P0304: cyl. 4 misfire. I have a 2000 Jag. 4.0 V-8. My scan tool shows cyl. 2 and 4 misfire. I have aldatta in shop. My problem is someone in my area told me that aldatta may be wrong on the firing order. So, before i start digging into this car i would like to ask if someone from th...
October 28, 2011
2001 BMW X5 3.0i 3.0L Misfire, MIL Lamp on VIN: WBAFA53521
P0304: Cylinder 4 misfire. Vehicle came in with all six cylinders misfiring and oxygen sensor bank one and bank two pre cat deviation codes. Found coils burned up from arching and spark plugs mismatched Replaced all coils and spark plugs. Cleared codes and test drove vehicle, vehicle ra...
October 07, 2011
2008 Toyota Highlander 3.5L Misfire, MIL Lamp on VIN: JTEES41A58
P0304: Cyl 4 misfire. Car runs great until you accelerate hard then the ses blinks and misses and low perf. Turn key off and restart runs fine until you accelerate hard then runs poor again with above codes. Nothing in iatn or mitchell. Any toyota techs out there that can help me o...
October 07, 2011
2003 Kia Sorento EX 3.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: KNDJD73333
P0304: Cylinder 4 Misfire Detected. I have ensured the timing marks are good and also replaced the negative battery terminal connector since it was loose on the vehicle. Now, I checked the side of the motor where the misfires are so that I can ensure there is nothing wrong with that catalytic, ...
October 17, 2011
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWMD63823
P0304: misfire 4. Customer brought car in with complaint of running poorly, almost shutting off and flashing check engine light. I pulled the codes and with the 0171 and misfires on all cylinders, I sort of ruled out one or two bad coils. It also had code 0507 but there wasn't...
October 17, 2011
2001 Volkswagen Cabrio GL 2.0L No Start VIN: 3VWBC21V51
P0304: Misfire cyl 4. I hope one of the wizards has been here before. On the way to MA on interstate, engine shut down. Cranks fine but no sign of life. Plugged in with Retriever hand held scanner w/VAG cartridge & retrieve first three codes. Looking up the P1570 indicated the...
October 19, 2011
2001 Ford Windstar SE 3.8L Misfire VIN: 2FMZA52421
P0304: cly 4 misfire. we have an 01 windstar with a #4 misfire under load runs ok until you load it we swapped injectors #4 with#6 miss stays at cyl #4 no coolant loss did all intake gaskets Is there an issue with spark under load? (computer) we pulled valve cover no problem there ...
October 24, 2011
2007 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire VIN: 1FMEU73E17
P0304: misfire cyl. 4. ... The truck came in with a rough idle complaint, off idle engine runs smooth. It has 2 codes P0316 & P0304 . I have swapped things around to try to move misfire but no luck. Performed compression test all cyls. are 160 ps...
October 24, 2011
2001 Ford Windstar SE 3.8L Misfire VIN: 2FMZA52421
P0304: cly 4 misfire. we have an 01 windstar with a #4 misfire under load runs ok until you load it we swapped injectors #4 with#6 miss stays at cyl #4 no coolant loss did all intake gaskets Is there an issue with spark under load? (computer) we pulled valve cover no problem there ...
October 25, 2011
2000 Jaguar Vanden Plas 4.0L Misfire VIN: SAJDA2408Y
P0304: cyl. 4 misfire. I have a 2000 Jag. 4.0 V-8. My scan tool shows cyl. 2 and 4 misfire. I have aldatta in shop. My problem is someone in my area told me that aldatta may be wrong on the firing order. So, before i start digging into this car i would like to ask if someone from th...
October 28, 2011