 
				
	| 1999 GMC K3500 Sierra SL 7.4L Misfire Hi guys and gals. This one has been kicking my butt for 6 months or more. Customer didn't need it and I have been very busy so it sat out back of the shop waiting for it's turn. It is time and I am stumped. Truck came in for coolant over pressuring and misfire... 
                        
                            Summary posted 7/8/2016
                               
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| VIN | 1GDJK34J5X | 
| Engine | 7.4 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / MPFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
| P0306 | Cylinder 6 Misfire Detected | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                1999 GMC K3500 Sierra SL
| VIN | 1GDJK34J5X | 
| Engine | 7.4 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / MPFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
| P0306 | Cylinder 6 Misfire Detected | 
 20 Replies Received
20 Replies Received
 20 Replies Received
          20 Replies Received
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