 
				
	| 2008 Chevrolet Avalanche LS 5.3L Misfire, MIL Lamp on Checked all ignition etc. hoping to find an easy out. Not to be. Compression [...] in #4. Checked Fix Database for any new ideas. I an aware of all the problems with these AFM systems. As suggested by Andy is his post, I cycled the AFM system with the MODIS. I... 
                        
                            FIX posted 7/14/2016
                               
                    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 6 Replies Received (View Replies)6 Replies Received (Hide Replies)
 | Message Closed w/FIX 
 | 
| VIN | 3GNFK123X8 | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / SEFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire, MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
Message Closed w/FIX
            
             Vehicle Data
 Vehicle Data
                2008 Chevrolet Avalanche LS
| VIN | 3GNFK123X8 | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / SEFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire, MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
 6 Replies Received
6 Replies Received
 6 Replies Received
          6 Replies Received
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