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1997 Ford Expedition

 

Question: Won't start

Question

grandmashakey, 4.6L V8, Metamora, IL, July 22, 2010, 18:49
 Rookie

The battery in my Expedition has been replaced 3 times in three weeks....after the vehicle sets for a couple days it will not start. The Ford dealership repair shop can not find the problem. I am at a loss what to do next.

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  • Answer #1

    fordlover78 from Master Mobile Mechanics, July 22, 2010, 21:09
     Technician

    THE MOST LIKELY CAUSE IS ELECTRICAL DRAW. REMOVE THE NEG BATTERY CABLE, PUT A TEST LIGHT BETWEEN TH NEG POST AND THE NOW LOSE TERMINAL. IF THE LIGHT ILLUMINATES BRIGHTLY, THERE IS A DRAW. (A SMALL AMOUNT OF LIGHT CAN BE PRESENT FOR FULL-TIME CIRCUITS AND PCM CONSTANT VOLTAGE)
    UNPLUG FUSES ONE AT A TIME UNTIL LIGHT GOES OUT. WHEN YOU FIND THE FUSE WITH THE DRAW YOU'LL HAVE TO TRACE WIRES AND/OR
    REPLACE THE NESECCARY COMPONENT LINKED TO THAT FUSE.

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    grandmashakey, July 23, 2010, 05:29
     Rookie

    Thank you so much. I would think the Ford dealership would have done this but it would not surprise me if they didn't. I will find someone to do this test for me and will let you know if it worked.

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