2007 GMC Sierra 1500 WT 5.3L Misfire, MIL Lamp on
ok I know this is crazy but this is a fleet vehicle and they want it fixed it only throws misfire codes at 5,000 rpm or more during hard accel and it shifts hard at that point also no misfires are felt only shown on tech 2 any ideas ??
FIX posted 5/7/2015
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Message Closed w/FIX
Vehicle Data2007 GMC Sierra 1500 WT
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2007 GMC Sierra 1500 WT
VIN | 1GTEC14057 |
Engine | 5.3 L / 8 cyl / FLEX |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire, MIL Lamp On |
Occurs | Under Load |
Trouble Codes
P0300 | Multiple Misfire Detected |