|
2004 Pontiac Montana 3.4L Misfire
This one will misfire at idle, occasionally come out of it but goes down the road normally. We have done compression and leak down for those affected cylinders all around 110-135, also did running compression comparing #s same all readings similar to other...
FIX posted 12/11/2025
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle 14 Replies Received (View Replies)14 Replies Received (Hide Replies)
|
Message Closed w/FIX
|
| VIN | 1GMDX13E84 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
| Occurs | Idle |
Trouble Codes
| P0305 | Cylinder 5 Misfire Detected |
| P0306 | Cylinder 6 Misfire Detected |
Message Closed w/FIX
Vehicle Data
2004 Pontiac Montana
| VIN | 1GMDX13E84 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
| Occurs | Idle |
Trouble Codes
| P0305 | Cylinder 5 Misfire Detected |
| P0306 | Cylinder 6 Misfire Detected |
14 Replies Received
14 Replies Received
Related Documents & Media