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1990 Ford F-150 Custom 5.0L Hesitation, Surge, Misfire, MIL flashes
Posted to Ford Driveability on 2/19/2001

Hello Ford Guru's,

I'm a high line European tech working on my own vehicle(first mistake), and am at a loss. This one has me stumped. I have MotorVac'd this beast, cleaned the throttle plate,etc. My problem is this: After warmup, under acceleration the truck ...

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car Vehicle Data

1990 Ford F-150 Custom

VIN 1FTEX15N7L
Engine5.0 L / 8 cyl / GAS
Trans5-speed Standard
DeliveryFI / EEC-IV
SymptomsHesitation, Surge, Misfire, MIL Flashes
OccursAlways, Under Load
Misc.Ext. Cab, Dual Tanks
Message Closed

car Vehicle Data

1990 Ford F-150 Custom

VIN 1FTEX15N7L
Engine5.0 L / 8 cyl / GAS
Trans5-speed Standard
DeliveryFI / EEC-IV
SymptomsHesitation, Surge, Misfire, MIL Flashes
OccursAlways, Under Load
Misc.Ext. Cab, Dual Tanks