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Thread: Bad fuel pump???????

  1. #1
    Regular Member self preservation's Avatar
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    Bad fuel pump???????

    Calling all mechanics...I have a question. My 94 Ranger has been idling rough when first started, then runs fine after warming up. The other day it failed to start at all. I have changed the fuel filter a few times in the past when it failed to start and it would start fine afterwards, but even after a filter change this go round it still won't start. I believed that my fuel pump was bad so I changed it as well. Still nothing. I pulled the fuel line off of the filter on the tank side and turned the key over to see if my new fuel pump was indeed pumping fuel. It pumped a very tiny amount of fuel onto the ground then stopped. Should my new fuel pump constantly pump fuel through the disconnected fuel line? I've been told that the pump will only pump until it reaches a certain pressure, but with the line unhooked it has no pressure to build up to. Any ideas what is wrong? By the way, it's a 94 Ranger, 4.0.
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  2. #2
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    https://www.youtube.com/watch?v=v54YFelxWCU

    Either pump or line clog somewhere ... start first w/pump replacement

    https://www.youtube.com/watch?v=v54YFelxWCU

    Easy job on a Mighty Ford Ranger !

    Gets 20 MPG, right?

    I had one, broke tie rod on the road and replaced it right on the road ... no need for chking anything .. ran for years after that with my quick repair...
    Last edited by davidmcbeth; 02-01-2014 at 07:05 PM.

  3. #3
    Moderator / Administrator Grapeshot's Avatar
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    Fuel pick-up clogged or line blocked.
    You will not rise to the occasion; you will fall back on your level of training.” Archilochus, 650 BC

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  4. #4
    Regular Member Batousaii's Avatar
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    The Ranger Station - Great website for those trucks.

    I had a mid 90's ranger for a couple years, it was an ok truck. Traded on an 82 Toyota 4x4, much better (for me at least).

    For rangers, one of the best sites out there http://www.therangerstation.com/
    Lots of tech tips, articles, fixes, mods etc.

    Hope it helps.

    Bat
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  5. #5
    Regular Member Logan 5's Avatar
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    IIRC isn't there a solonoid that feeds power to the fuel pump, in the Ranger? My Bronco 2 had one.
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  6. #6
    Moderator / Administrator Grapeshot's Avatar
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    Quote Originally Posted by Logan 5 View Post
    IIRC isn't there a solonoid that feeds power to the fuel pump, in the Ranger? My Bronco 2 had one.
    Think that a solenoids/relays are mandated safety feature on vehicles equipped with an electric fuel pump.
    You will not rise to the occasion; you will fall back on your level of training.” Archilochus, 650 BC

    Old and treacherous will beat young and skilled every time. Yata hey.

  7. #7
    Regular Member Logan 5's Avatar
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    My B2 was an '88 and it had an in tank pump. A '94 Ranger likely does as well.
    I hate in tank pumps. major PIA to fix.
    Lifetime member, Gun Owners of America (http://gunowners.org/)
    Lifetime member, Jews for the Preservation of Firearm Ownership (http://jpfo.org/)
    Member, Fraternal Order of Eagles since 8/02 (http://www.foe.com/)

    Registering gun owners to prevent crime, is like registering Jews to prevent a HOLOCAUST.

    I am not a lawyer in real life, or in play life. So anything I say is for debate and discussion only.

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