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1998 Chevrolet K1500 Cheyenne 5.7L Poor Fuel Economy
I am trying to help a friend and fellow - technician in Butte, MT. His personal vehicle has lost over 100 miles per tank. He was getting between 360-400 miles per tank, and is now getting around 260 miles per tank. His performance has not dropped off, and thei...
FIX posted 1/20/2004
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Related Documents & Media | VIN | 1GCEK14R7W |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / Vortec |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy |
| Occurs | Over the Last Three Months |
| Misc. | Vortec |
Trouble Codes
| 1404 | EGR valve pintle position circuit fault |
| 1441 | EVAP control system flow during non-purge |
| 446 | Evap canister purge vent blocked |
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Vehicle Data
1998 Chevrolet K1500 Cheyenne
| VIN | 1GCEK14R7W |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / Vortec |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy |
| Occurs | Over the Last Three Months |
| Misc. | Vortec |
Trouble Codes
| 1404 | EGR valve pintle position circuit fault |
| 1441 | EVAP control system flow during non-purge |
| 446 | Evap canister purge vent blocked |
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