Question about 1993 Ford Explorer Limited

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1993 ford explorer fuel pump fuse keeps blowing

At first the truck wouldn't start, no fuel. i figured fuel pump. I replaced the fuel pump. now i find that the fuel pump fuse keeps blowing. i get the truck turned over it runs for about a second the fuse blows. i replace the fuse with the blower fuse. both work fine. i thought i found a wiring problem. i disconnected the underbody frame rail wiring harness, looking for a short. i check and find that in this section when i touch two pins together i get a beep with my multi meter, meaning theres a short. i cant see a short. now i'm thinking its one of the pins. i have no clue from here. The truck was warming up, i left to go inside the house, come back out five minutes later and the truck was off. radio running. thats how the whole problem started. and help would help!! if you could email me you could save my life lol. thanks
josh
joshgaut29@hotmail.com

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  • J.D. Browning
    J.D. Browning May 11, 2010

    try to disconnect fuel pump and connect a common test light you can buy at any auto parts store for about 5 bucks (not a multimeter) have a friend crank truck over a few times you watch test light , Does it light ? did fuse blow again?



    if light Lights up and fuse does'nt blow you got a new bad pump

    if you get no light and fuse blows you have a short in wire harness

    look for crushed or bent metal on bottom of truck near wire harness

    I believe on that truck the wire harness runs inside the box frame on drivers side

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  • Ford Master
  • 3,433 Answers

Josh. The best and safest way to find a short is to find it. But, the fuse wonwon't give yo time. So, Let's create time and replace the fuse with an aitomatic fuse/circuit breaker. It will cycle automaticly until you locat the problem. When yo locate the short it will quit cycling.. Just put it in place of the original fuse and listen. Do not exceed the original fuse capcity. they are available at autoparts stores. good luck and if this helps, fill our the questions fixya asks. please

Posted on Jun 13, 2009

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