 
				
	| 2004 GMC Sierra 1500 SLE 4.8L Misfire Car came in with random misfire code, misfires on 6 mostly and some on 5 but they are right next to each other in firing order so I have dismissed #5 misfires. Unplugging coil to 5 does drop RPM, unplugging #6 does not. I have performed cylinder balance test w... 
                        
                            Summary posted 12/26/2011
                               
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 | Message Closed w/Summary 
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| VIN | 2GTEK19V74 | 
| Engine | 4.8 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                2004 GMC Sierra 1500 SLE
| VIN | 2GTEK19V74 | 
| Engine | 4.8 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
 22 Replies Received
22 Replies Received
 22 Replies Received
          22 Replies Received
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