
2009 Mercedes-Benz ML550 5.5L Misfire
Misfire on cylinder 7 and 8. Problem is there is no spark or injector pulse on those 2 cylinders. Both cylinders have good compression. I tried swapping coils, clearing the codes, doing an adaption reset, disconnecting the battery and connecting terminals ...
FIX posted 3/28/2019
![]()
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 (View Replies)4 Replies Received(Hide Replies)4 Replies Received
|
Message Closed
|
VIN | 4JGBB72E09 |
Engine | 5.5 L / 8 cyl / GAS |
Trans | 7-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Always |
Trouble Codes
P0300 | Multiple Misfire Detected |
P0307 | Cylinder 7 Misfire Detected |
P0308 | Cylinder 8 Misfire Detected |
Message Closed
Vehicle Data
2009 Mercedes-Benz ML550
VIN | 4JGBB72E09 |
Engine | 5.5 L / 8 cyl / GAS |
Trans | 7-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Always |
Trouble Codes
P0300 | Multiple Misfire Detected |
P0307 | Cylinder 7 Misfire Detected |
P0308 | Cylinder 8 Misfire Detected |