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2003 GMC Savana 2500 5.3L Misfire
Repaired Van 2 weeks ago for same issue. It is now back P0300. All cylinders are misfiring. Fuel trin 120 to 132 both banks at idle. Miss at lower rpms only. Fuel pressure 57psi KOEO. Engine runs great cold. Do these plastic manifolds crak on or warp and leak?...
FIX posted 7/27/2012
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Message Closed w/FIX
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6 Replies Received
6 Replies Received
Related Documents & Media | VIN | 1GTFG29TX3 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
| Occurs | Hot |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
2003 GMC Savana 2500
| VIN | 1GTFG29TX3 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
| Occurs | Hot |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Video