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02 Explorer Voltage Issue - won't start ; gauges going haywire

Discussion in 'Stock 2002 - 2005 Explorers' started by BrandonB8, July 2, 2010.

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    1. BrandonB8

      BrandonB8 New Member

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      City, State:
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      Year and Model:
      1995 XLT
      I went out to run an errand this morning and the truck wouldn't start. Acted like a bad battery so I checked the voltage with the terminals hooked up. Sure enough it was down around 9. So I disconnected the terminals and checked and was getting 13. So I have a drain somewhere. CHecked the alternator and that didn't affect the voltage. When I turn the key to the on position everything seems fine, but as soon as it goes to run the gauges go back and forth, the relays start clicking like crazy and it won't turn over. Anyone have any ideas where to start. Its not a bad starter but I'm wondering if it could be either the ignition key switch or something like that. any help is greatly appreciated.
       
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    3. JDraper

      JDraper Somewhat Functional Moderator Emeritus

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      Even though you're reading a decent voltage, your battery may still be shot. Don't know if the Explorer's do it, but when the battery starts to go flat in other Fords, the gauges will swing full scale when the key is put in the run position.
       
    4. BigRondo

      BigRondo USMC 1371 Staff Member Moderator Elite Explorer

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    5. BrandonB8

      BrandonB8 New Member

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      I'll try it out. Thanks for the quick responses. This forum rocks.
       
    6. BigRondo

      BigRondo USMC 1371 Staff Member Moderator Elite Explorer

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      Keep us posted! :salute:
       
    7. h_chute

      h_chute New Member

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      I have an '02 Eddie Bauer, and it just started doing the same thing! It starts, but sounds like it is having trouble. Then the guages peg right, then return left and go to the normal position. I've put 3 batteries in her in the last 3 years. Interesting.......
       
    8. therover1991

      therover1991 Active Member

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      I had this problem twice with my car, both times it was the alternator.
       

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