
2003 GMC Safari 4.3L Misfire
This van will misfire & the check engine light will flash when going up a hill, but it has to be a long hill. Going up the hill by my shop (the one I always use to road test), or on a level it runs fine. It sets a P0300 code and if you look at the misfire moni...
Summary posted 7/15/2012
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Message Closed w/Summary
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VIN | 1GTDM19X73 |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Under Load |
Trouble Codes
P0300 | Multiple Misfire Detected |
Message Closed w/Summary
Vehicle Data
2003 GMC Safari
VIN | 1GTDM19X73 |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Under Load |
Trouble Codes
P0300 | Multiple Misfire Detected |