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1999 Chevrolet Express 3500 5.7L Hesitation, Cuts out, Misfire, Poor Fuel Economy, lack of power
vehilce is a 99 g3500 box van 5.7l. it starts and runs and actually idles pretty good, but when trying to accelerate under any condition, whether in gear or not, it stumbles and falls flat on its face. if you feather the throttle you can get it to rev up but i...
FIX posted 1/20/2008
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27 Replies Received
27 Replies Received
Related Documents & Media | VIN | 126FGRFRYX |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sfi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Cuts Out, Misfire, Poor Fuel Economy, Lack of Power |
| Occurs | Cold, Hot, Under Load, on Accel, Idle, Hesitation, Stumble, and Lack of Power Happen at All Times Under Any Condition |
| Misc. | Known Good MAP MAF TPS Cmp CKP All Four O2's Fuel Pressure |
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Vehicle Data
1999 Chevrolet Express 3500
| VIN | 126FGRFRYX |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sfi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Cuts Out, Misfire, Poor Fuel Economy, Lack of Power |
| Occurs | Cold, Hot, Under Load, on Accel, Idle, Hesitation, Stumble, and Lack of Power Happen at All Times Under Any Condition |
| Misc. | Known Good MAP MAF TPS Cmp CKP All Four O2's Fuel Pressure |
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