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Fuel problem - Please Help

Discussion in 'Early CJ5 and CJ6 Tech' started by fatty, Aug 9, 2005.

  1. Aug 9, 2005
    fatty

    fatty New Member

    Papillion, NE
    Joined:
    Sep 21, 2002
    Messages:
    32
    When an electric fuel pump starts to go out, will it still pump fuel? Today I was driving down the interstate around 60-70mph and my jeep started to cut out like it wasn't getting enough fuel. So I stopped to see if it would idle and it did with no problems. So I tried to take off again and as soon as I put my foot in it, it would cut out and die. What gets me is it would start and idle no problem every time. I was only able to drive about 25-30mph, but when driving up hill it would cut out. I did this for the next 45 miles until I got home. Thanks a million.
     
    fatty, Aug 9, 2005
    #1
  2. Aug 9, 2005
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
    Joined:
    Sep 20, 2002
    Messages:
    6,197
    Check the filter? Sounds like a clogged one somewhere...
     
    Boyink, Aug 9, 2005
    #2
  3. Aug 9, 2005
    fatty

    fatty New Member

    Papillion, NE
    Joined:
    Sep 21, 2002
    Messages:
    32
    I have the clear filter and it's clean. I just started it again and could see the fuel flow into the filter. Could it be something else? I just have no clue...it has me stumped.
     
    fatty, Aug 9, 2005
    #3
  4. Aug 9, 2005
    69utjeeper

    69utjeeper Member

    layton, Utah
    Joined:
    Oct 7, 2004
    Messages:
    131
    ound like a filter to me a well, I had ther ame problem and it was the filter
     
    69utjeeper, Aug 9, 2005
    #4
  5. Aug 10, 2005
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    x3, otherwise crud in the tank that is obstructing the flow. :(
     
    w3srl, Aug 10, 2005
    #5
  6. Aug 10, 2005
    fatty

    fatty New Member

    Papillion, NE
    Joined:
    Sep 21, 2002
    Messages:
    32
    The fuel cell, sender, lines, and filter are less than a year old. I did look at the filter and it is very clean...no dirt at all. The fuel pump is around 4yrs. Is it possible to pump fuel at idle with no problems then not be able to deliver enough fuel when accelerating? Maybe a hole in the diaphram...I just don't know
     
    fatty, Aug 10, 2005
    #6
  7. Aug 10, 2005
    MOP

    MOP Active Member

    Pullman, WA
    Joined:
    Sep 25, 2003
    Messages:
    1,131
    I agree with the fuel problem, but maybe it's time to replace your coil also just for fun.
     
    MOP, Aug 10, 2005
    #7
  8. Aug 10, 2005
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
    Joined:
    Sep 20, 2002
    Messages:
    6,197
    Sometimes there is another filter on the carb input - usually just a screen. Might check that...MOP's coil idea is another thought as well.
     
    Boyink, Aug 10, 2005
    #8
  9. Aug 10, 2005
    kamel

    kamel Senior Curmudgeon

    Erlanger, Kentucky
    Joined:
    Jun 10, 2003
    Messages:
    891
    a fuel filter is very cheap. Perhaps there is a defect in what you have, or it can clog and visually look OK.

    That's where I'd go first - and it wouldn't make any difference to me if I had replaced the fuel filter a month ago -
     
    kamel, Aug 10, 2005
    #9
  10. Aug 10, 2005
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    I'd start by checking fuel pressure and volume...
     
    Patrick, Aug 10, 2005
    #10
  11. Aug 11, 2005
    fatty

    fatty New Member

    Papillion, NE
    Joined:
    Sep 21, 2002
    Messages:
    32
    Thanks for all the help. It turned out to be a bad ground. When I was installing my power steering i cut part of the grounding strap (motor to chasis) and forgot to replace it. I replaced it today and it worked like a champ. Thanks again.
     
    fatty, Aug 11, 2005
    #11
  12. Aug 11, 2005
    kcjeep

    kcjeep Member

    Stillwater, Oklahoma
    Joined:
    Dec 9, 2003
    Messages:
    114
    Check all of your flexible fuel lines...if you have the smallest of cracks, it will suck air in when you step on it and you will get the results you report. This happened to me with a '71 I had. I replaced all the flexible lines and it ran like a top. KCJ
     
    kcjeep, Aug 11, 2005
    #12
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