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1993 Ford Ranger XL 4.0L Poor Idle Quality, Hesitation, Surge
Posted to Ford Driveability on 11/17/2000

Hello all.

Have a problem with lean, rich on 02's. Switches back and forth from bank to bank. If one side is lean, the other is rich. Then in about 30 sec's it switches to the opposite sides. This affects injector pulse and making truck run poor. We replaced...

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car Vehicle Data

1993 Ford Ranger XL

VIN 1FTCR14XXP
Engine4.0 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / MPFI
EmissionsCa.
SymptomsPoor Idle Quality, Hesitation, Surge
OccursAlways, Under Load
Message Closed w/FIX

car Vehicle Data

1993 Ford Ranger XL

VIN 1FTCR14XXP
Engine4.0 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / MPFI
EmissionsCa.
SymptomsPoor Idle Quality, Hesitation, Surge
OccursAlways, Under Load