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1991 Ford F-250 Custom 5.8L Surge, Bogs down then accel
Due to the recent snow, customer came in with complaint of power loss. To duplicate the power loss problem, it was necessary to drive the truck in four high uphill, repeatedly. Finally the 'lo' range light started to flicker and then it stayed on. The tach beg...
FIX posted 3/13/1999
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| VIN | 1FTEF26H4M |
| Engine | 5.8 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Emissions | EEC4 - FED |
| Symptoms | Surge, Bogs Down Then Accel |
| Occurs | Hot, Under Load, on Accel, Intermittently, Uphill in 4X4 Hi Only Lo Light Flickers Then Comes on Steady Power Loss and Surge Begins |
| Misc. | 4X4 Standard Cab |
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Vehicle Data
1991 Ford F-250 Custom
| VIN | 1FTEF26H4M |
| Engine | 5.8 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Emissions | EEC4 - FED |
| Symptoms | Surge, Bogs Down Then Accel |
| Occurs | Hot, Under Load, on Accel, Intermittently, Uphill in 4X4 Hi Only Lo Light Flickers Then Comes on Steady Power Loss and Surge Begins |
| Misc. | 4X4 Standard Cab |
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