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1991 Ford F-250 Custom 4.9L Hesitation
Posted to Ford Driveability on 9/27/2014 26 Replies

This vehicle has an intermittent loss of power/ hesitation/ misfire but only in the mid range of the RPM's and under medium load. Full throttle seems smooth so we do not suspect fuel pressure being the cause. Plugs, wires, cap and rotor are new so we do not su...

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  Related Documents & Media  1991 Ford F-250 Custom

 
Message Closed w/FIX

car Vehicle Data

1991 Ford F-250 Custom

VIN 2FTHF25Y1M
Engine4.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Multi Port
EmissionsCA
SymptomsHesitation
OccursAlways

Trouble Codes

542shows only when performing manual self test fuel pump circuit
Message Closed w/FIX

car Vehicle Data

1991 Ford F-250 Custom

VIN 2FTHF25Y1M
Engine4.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Multi Port
EmissionsCA
SymptomsHesitation
OccursAlways

Trouble Codes

542shows only when performing manual self test fuel pump circuit