2004 GMC Sierra 2500 SLE 6.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on
When you first start after sitting all night or about six hours, runs good for about 15 sec. then starts rough idle missing and won't take fuel pops back through air intake, white smoke looks like fuel smoke not anti- freeze, not running hot or adding flui...
Summary posted 10/30/2018
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Vehicle Data2004 GMC Sierra 2500 SLE
Trouble Codes
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Message Closed w/Summary
Vehicle Data
2004 GMC Sierra 2500 SLE
VIN | 1GTHK24U24 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp On |
Occurs | Cold |
Trouble Codes
P0300 | Multiple Misfire Detected |