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1991 GMC K1500 Sierra SLE 5.7L Excessive Emissions, No Start, Poor Idle Quality, Black smoke
On cold starts truck floods,black [...] warm up block learn will go as high as 172.O2 willread lean.
FIX posted 12/23/2000
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Related Documents & Media 
| VIN | 2GTEK19K5M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | Excessive Emissions, No Start, Poor Idle Quality, Black Smoke |
| Occurs | Cold |
Message Closed w/FIX
Vehicle Data
1991 GMC K1500 Sierra SLE
| VIN | 2GTEK19K5M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | Excessive Emissions, No Start, Poor Idle Quality, Black Smoke |
| Occurs | Cold |
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