1991 Ford F-250 Custom 4.9L Hesitation
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...
FIX posted 11/9/2014
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Message Closed w/FIX
Vehicle Data1991 Ford F-250 Custom
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1991 Ford F-250 Custom
VIN | 2FTHF25Y1M |
Engine | 4.9 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / Multi Port |
Emissions | CA |
Symptoms | Hesitation |
Occurs | Always |
Trouble Codes
542 | shows only when performing manual self test fuel pump circuit |