2006 Hummer H3 3.5L Surge, Misfire, MIL Lamp on
Replaced coils and plugs on customer request, still has multiple misfires on all cylinders. Seems to be more apparent when cold, still misfires but not as bad after warming up. Misfires are high on cylinder 4 with cylinders 1 and 5 not as high, misfires on 2 a...
FIX posted 12/31/2014
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Message Closed w/FIX
Vehicle Data2006 Hummer H3
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2006 Hummer H3
VIN | 5GTDN13696 |
Engine | 3.5 L / 5 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / misfire |
Emissions | OBD-II Compliant |
Symptoms | Surge, Misfire, MIL Lamp On |
Occurs | More Apprent When Cold |
Trouble Codes
P0300 | Multiple Misfire Detected |