1997 Ford F-150

35,000 MILES • V8 • 4WD • AUTOMATIC
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REKOI
  • MEMBER
  • 1 POST
my truck shifts into 4wd by itself. it has happened several times. my mechanic unplugged the 4wd switch yet it still goes into 4wd
Oct 19, 2010 at 10:33 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Is the transfer case shifting or the front axle?
Oct 20, 2010 at 1:50 AM
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REKOI
  • MEMBER
  • 1 POST
the transfer case is shifting
Oct 20, 2010 at 10:40 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Disconnect the actuator on the transfer case and see if it stops. You may have a short right at the plug. The switch is to send a signal to a relay then to the actuator, but power could still make it there. It could be the wiring or a bad relay.

let me know.
Oct 20, 2010 at 3:58 PM
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