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4wd Inop.

1576 Views 4 Replies 3 Participants Last post by  MotionMan
Low range works fine but not high, why? 2003 Excusrion, 111,000 miles.
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Possibly a Mode Select Switch malfunction. Any trouble codes? I think the 4x4 module has it's own self test through a scanner.

Hit me up with your email and I will send you the Ford diagnostics for trouble shooting transfer case and 4 wheel problems. Maybe take a look and decide how involved you want to get. Do the easy tests that you feel comfortable with and then decide.
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