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P0304 Diagnostic Trouble Code Discussion for August 2008

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1998 Volvo V70 T5 2.3L Misfire VIN: YV1LW5349W
P0304: cylinder 4 misfire. ... butt! Customer seems to have a misfire situation at some point after he leaves our shop. Has been back 4 times within a month with the same misfires codes.(P0303,304,305) Customer had Turbo replaced(Volvo parts)because it...
August 01, 2008
2004 Isuzu Rodeo S 3.5L No Start, MIL Lamp on VIN: 4S2CK58Y24
P0304: Cylinder 4 Misfire Detected. ... p0302, & p0304. cleared the codes and p0346 returns. I scoped both cam sensors and i have a square waves signal on both. Sometimes after i clear the codes and crank it, it will start for 2 ...
August 08, 2008
2003 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on VIN: 1J4GW48S03
P0304: Cylinder 4 Misfire Detected. this happens after 20 miles of driving and it picks up a miss on #1 and 5 cylinder (this time). The injector on those 2 cylinders had power but no trigger. I gave the intake a shot of carb cleaner and it did not smooth out. I thought maybe a spark issue but th...
August 12, 2008
2002 Chevrolet Astro LS 4.3L MIL Lamp on VIN: 1GNDM19X52
P0304: misfire on 4 cylinder. the van came in for mil lamp on. found manifold gasket leaking into crankcase. performed fuel injection service, replaced spark plugs, wires, cap & rotor, fuel, air, filter and pcv valve, intake manifold gasket, lof, cleared the code and run the monitor. t...
August 13, 2008
2002 Chrysler Voyager LX 3.3L Cuts out, Misfire VIN: 1C8GJ45332
P0304: Cylinder 4 Misfire Detected. Customer came in with complaint of rough idle and missfire while driving Found serveral missfire codes, #3, #4, #6, and lean O2 bank 1 #4 spark plug black others normal Installed new spark plugs and wires, cleared codes Problem still present, missfire #3 and #...
August 18, 2008
1999 Honda Accord EX 2.3L Misfire, MIL Lamp on VIN: 1HGCG5651X
P0304: Cylinder 4 Misfire Detected. History...(would not fit above) Oct 2004 92,501 miles. Dealer replaced Cat Converter. Oct 2007 118,382 miles. Dealer replace Cat under warranty (po420) At this same time dealer replace timing belt and water pump. Dec 2007 119,909 miles. Same Dealer "Cust...
August 18, 2008
1999 Honda Accord EX 2.3L Misfire, MIL Lamp on VIN: 1HGCG5851X
P0304: Cylinder 4 Misfire Detected. History...(would not fit above) Oct 2004 92,501 miles. Dealer replaced Cat Converter. Oct 2007 118,382 miles. Dealer replace Cat under warranty (po420) At this same time dealer replace timing belt and water pump. Dec 2007 119,909 miles. Same Dealer "Cust...
August 18, 2008
2000 Hyundai Elantra GLS 2.0L MIL Lamp on, #4 missfire VIN: KMHJW35F24
P0304: Cylinder 4 Misfire Detected. same as above
August 23, 2008
2003 Mazda MPV EX 3.0L Stall, Misfire, MIL Lamp on, 3 injectors B1not wo VIN: JM3LW28J53
P0304: Cylinder 4 Misfire Detected. ... Customer bought Cat. and O2 sensor from dealer and replaced by himself. We check and found 3 injectors (#4,5,6) B2 are not working. Have power(pulse)to injectors.Compression check are OK. After replaced injectors we get #5 working. Thought injectors replac...
August 27, 2008
2004 Kia Sedona EX 3.5L MIL Lamp on VIN: KNDUP13144
P0304: Cylinder 4 Misfire Detected. ... on. codes p0304 and p1159. i replaced the coil front middle cylinder is this number 4? still has code did not have p1159 last time it came in. could somebody let me know which cylinder is number 4 because my software has l...
August 29, 2008
2003 Saab 9-3 Arc 2.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: YS3FD49Y73
P0304: Cylinder 4 misfire detected. Performed diagnostic tests as instructed by AC Delco TDS, including checking for proper voltage at the ignition coils and activating the coils with the Tech2. Swapped coils and the misfire didn't follow. Replaced the ionization module as instructed by Delco. T...
August 29, 2008