 
				
	| 1999 GMC K1500 Suburban SLE 5.7L Misfire Vehicle has small mis fire at 55 to 60mph only going up a grade. Checked fuel pressure and was with in specs. at koeo and at koer. With fuel gauge on driving vehicle up a hill fuel pressure would flucuate at 48 to 52 psi and the gauge needle would go crazy. Re... 
                        
                            Summary posted 3/15/2012
                               
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 | Message Closed w/Summary 
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| VIN | 3GKFK16R9X | 
| Engine | 5.7 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Under Load | 
| Misc. | Has Rebuilt Engine | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                1999 GMC K1500 Suburban SLE
| VIN | 3GKFK16R9X | 
| Engine | 5.7 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Under Load | 
| Misc. | Has Rebuilt Engine | 
 11 Replies Received
11 Replies Received
 11 Replies Received
          11 Replies Received
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