Question about 1991 Ford F250

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Wont idle 1991 Ford F250 Pickup 351 wisner Fuel injected when cold hasn't been started in a day will start and idle real good real smooth when put into gear and go to move will die then when try to start back will not start unless acelator held to floor when does start have to keep pumping acelator to run but wont idle unless pumping

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  • seacarter193 Apr 19, 2009

    I have the same problem.I put it in gear it dies,you have to let it warm up.It also slow to come to idle when your driving.Idles at about 1200 rpm for 4 sec. then drops to norm.

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Sounds like dirty fuel check your fuel filters see if ther blocked

Posted on Jan 09, 2009

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Hello. katienjoe. the fuel line from the filter to the fuel rail has a restrictor in the line its at the fitting at the rail. the opening messures 3/16 of a inch. so loaded it doesn't pull above 50 mph. you can change the line I did on mine the hot rod shops can supply what you need.

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