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1991 Chevrolet K1500 Cheyenne 5.7L Hesitation, Surge, Poor Fuel Economy, Hard start
Truck starts hard only when at operating temperature with a small cloud of black smoke out the exhaust. It would also surge and almost stall on stop/go's and would surge at steady speeds and engine RPM. I first found a crack in the TBI unit (strange!) and repl...
FIX posted 10/22/2002
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Related Documents & Media | VIN | 1GCDK14K3M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US Federal Emissions |
| Symptoms | Hesitation, Surge, Poor Fuel Economy, Hard Start |
| Occurs | Hot, on Accel, Cruise, Start-Up |
Message Closed w/FIX
Vehicle Data
1991 Chevrolet K1500 Cheyenne
| VIN | 1GCDK14K3M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US Federal Emissions |
| Symptoms | Hesitation, Surge, Poor Fuel Economy, Hard Start |
| Occurs | Hot, on Accel, Cruise, Start-Up |
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