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1991 Ford F-350 Custom 7.5L Poor Idle Quality, Stall
Posted to Ford Driveability on 3/13/2006 15 Replies

Hello smart ford guys. I have a 1991 F350 that's giving me fits! Vehicle will not maintain idle; it will surge up and down trying to stabilize while holding throttle constant. I found a code relating to the o2 not switching, and stuck lean. Vehicle really acts...

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Message Closed w/FIX

car Vehicle Data

1991 Ford F-350 Custom

VIN 2FTJW35G4L
Engine7.5 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
SymptomsPoor Idle Quality, Stall
OccursAlways, Cruise, Idle
Message Closed w/FIX

car Vehicle Data

1991 Ford F-350 Custom

VIN 2FTJW35G4L
Engine7.5 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
SymptomsPoor Idle Quality, Stall
OccursAlways, Cruise, Idle