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P0304 Diagnostic Trouble Code Discussion for October 2015

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1997 Ford F-150 Lariat 4.6L Misfire VIN: 1FTDX1866V
P0304: Cylinder 4 Misfire. ... initial startup after sitting for more than a half hour or so. Misfires longer the longer it has been sitting. Feels like an engine that has an injector bleeding into the cylinder. Fuel pressure is right on spec. and doesn't drop when engine is turned off....
October 07, 2015
2005 Toyota Camry 2.4L Misfire VIN: 4T1BE32K65
P0304: Cylinder 4 Misfire Detected. Car came in running poorly with a steady misfire on cylinder 4. Sometimes it would smooth out and run perfect and then all of a sudden start misfiring again. Its a dead miss and sometimes cylinder 3 will miss too but usually just cylinder 4. Compression on all...
October 12, 2015
2003 Dodge Ram 3500 Van 5.9L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2D7LB31Z53
P0304: Cylinder 4 Misfire Detected. Customer called last week, can dead on highway, tested for spark, found spark weak, replaced cool and also found cool pin on distributor cap loose, replace cap and rotors. Then customer requested plugs and wires. Van now runs, but is misfiring. I checked and r...
October 13, 2015
2011 Chevrolet Traverse LTZ 3.6L No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on
... Traverse 3.6l vin D. Customer stated that the vehicle would idle poorly when hot intermittently. Also when vehicle idles poorly it would also have poor performance. Customer stated no codes in system. I arrived at the repair facility and found 4 codes in h...
October 14, 2015
2011 Chevrolet Traverse LTZ 3.6L No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on
... Traverse 3.6l vin D. Customer stated that the vehicle would idle poorly when hot intermittently. Also when vehicle idles poorly it would also have poor performance. Customer stated no codes in system. I arrived at the repair facility and found 4 codes in h...
October 19, 2015
2003 Ford Mustang GT 4.6L Misfire VIN: 1FAFP45X33
P0304: misfire cyl 4. car sets P0304 every once in a while while driving, have swapped coil and plug to different cylinders. have swapped injector to different cylinder. will start to misfire sporadically about 2-3 miles into a drive. will clear up on its own. eventually turning on...
October 22, 2015
2004 Lexus IS300 3.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: JTHBD19244
P0304: Cylinder 4 Misfire Detected. Not sure where to go with this one. Customer states: car had a slight misfire for a couple of weeks, only when backing out of parking spaces but cruised fine and no cel. Problem started to get worse, eventually it threw a cel, and missed at a cruise, and under...
October 22, 2015
2005 Saturn Vue 3.5L Hesitation, Surge, Misfire VIN: 5GZCZ53405
P0304: Cylinder 4 Misfire Detected. HI all, Thank you in advance for your help. Customer brought this from another shop. They installed Bosch platinum plugs. This 2005 Saturn Vue with the Honda 3.5l engine has me stumped. It idles with a slight vibration and is low on power on acceleration. It s...
October 26, 2015