Question about 2003 Ford Expedition

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Buzzing noise in fuse box 2003 ford expedition

Truck will not crank

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Relay is opening and closing...short circuit some where . You need to find out what circuit is controlled by relay and find out why it is shorting.

Posted on Feb 14, 2019


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I know this is an old post but this is happening to my truck to, ford expedition 2003, after swapping the relays i can get it to work but now is happening more often about once a week, sometimes i have to swamp several times until it starts. Any suggestions?

Posted on Feb 14, 2019

  • Carakeno
    Carakeno Mar 05, 2019

    I changed the first one on the top right, felt little hot, paid 20 dls for a new one in orellys and now is working like a charm. Will advice getting 1 or 2 extra to be safe just in case

  • Carakeno
    Carakeno Sep 30, 2019

    I changed the first rellay one on the top right, felt little hot, paid 20 dls for a new one in orellys and now is working like a charm. Will advice getting 1 or 2 extra to be safe just in case



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Posted on Jan 02, 2017


  • 1 Answer

SOURCE: My 2003 expedition will not start only loud

try changing the ignition relay,or put your finger on each relay while the buzzing is going on,and find the one that is vibrating most ie..(buzzing!!!)

Posted on Oct 26, 2009


ZJ Limited

  • 17970 Answers

SOURCE: how to find a the fuse box in an ford expedition

Check this graphics locations and the Expedition Owners Manual (page 249 and next)...


and Power Distribution Box (underhood)...


Hope helps (remember rated this).

Posted on Jun 01, 2010


Jeffrey Turcotte

  • 8984 Answers

SOURCE: My 2003 Ford Expedition 4.6

try swapping the starter relay withj the horn relay. If this works, replace the relay. If this doesn't work, please get back to me.


Posted on Nov 06, 2010

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