 
				
	| 1999 GMC C6500 Topkick C6H042 7.4L Backfire extended cr Vehicle came in from another shop with a customer complaint of backfiring and misfires. Other shop could not get vehicle to mis but was able to get backfire to occur. Came to our shop running fine, let sit over night tryed to start in morning vehicle had an ex... 
                        
                            Summary posted 7/28/2016
                               
                    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 16 Replies Received (View Replies)16 Replies Received (Hide Replies)
 | Message Closed w/Summary 
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| VIN | 1GDJ6H1D9X | 
| Engine | 7.4 L / 8 cyl / GAS | 
| Delivery | Fuel Injection / SEFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Backfire Extended Cr | 
| Occurs | Cold, Intermittently | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                1999 GMC C6500 Topkick C6H042
| VIN | 1GDJ6H1D9X | 
| Engine | 7.4 L / 8 cyl / GAS | 
| Delivery | Fuel Injection / SEFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Backfire Extended Cr | 
| Occurs | Cold, Intermittently | 
 16 Replies Received
16 Replies Received
 16 Replies Received
          16 Replies Received
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