P0304 Diagnostic Trouble Code Discussion for September 2006
Cylinder 4 Misfire Detected
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0304
| Help Request | Posted | |
| 1997 Buick LeSabre Custom 3.8L Misfire VIN: 1G4HP52K3V P0304: Cyl 4 Misfire Severe. We have swapped injectors, coils, plugs and wires. Running compression shows around 80 psi on good cylinders, only 50 psi on affected cylinders. I'm leaning towards a cooked engine, but others remain unconvinced. Any ideas would be appreciated. |
September 01, 2006 | |
| 2000 Mercedes-Benz ML320 3.2L Hesitation, Misfire, MIL Lamp on VIN: 4JGAB54E6Y P0304: Cylinder 4 Catalyst damaging misfire. Car came in with cylinders 4, 5, 6 catalyst damaging misfires. Will only occur cold and during post start but not when warm. When accelerating from a stop either with light pedal pressure or WOT, check engine light comes on and flashes, engine runs very rough.... |
September 06, 2006 | |
| 2002 Saturn Vue 3.0L MIL Lamp on VIN: 5GZCZ63B32 P0304: Cylinder 4 Misfire Detected. This Saturn was a drive by scanning with an appointment for next monday. I am writing because this is the first time I have encountered this engine and do not know a lot about it. The customer stated that about 1.5 years ago the pcv hose froze up and caused th... |
September 13, 2006 | |
| 1997 Chrysler LHS 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2C3HC56F7V P0304: Cylinder 4 Misfire Detected. ... behind. This car came in on a hook with antifreeze in all the cylinders. The customer drove it till it quit. I pulled the heads and sent them out to be checked. They were worped but found no cracks. Resurfaced and replaced. After test drive I noticed car h... |
September 18, 2006 | |
| 1999 Ford Expedition Eddie Bauer 5.4L Misfire VIN: 1FMPU18L8X P0304: Misfire cylinder 4. Hello all, Ford techs: Does anyone have service tips regarding ignition coils on 4.6/5.4 engines? I am replacing a LOT of these coils and am wondering if anyone has usefull information to suggest regarding lasting repairs. On this particular truck, #3 and ... |
September 18, 2006 | |
| 1997 Chrysler LHS 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2C3HC56F7V P0304: Cylinder 4 Misfire Detected. ... behind. This car came in on a hook with antifreeze in all the cylinders. The customer drove it till it quit. I pulled the heads and sent them out to be checked. They were worped but found no cracks. Resurfaced and replaced. After test drive I noticed car h... |
September 20, 2006 |
