2005 Ford F-150 F-150 4X4 problem

Tiny
TRANKIN352
  • 2005 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 116,000 MILES

I have a 2005 f150 with the electronic 4x4 switch for the 4h and 4l. At a sit still, the 4x4 will not lock in. Going at very low speeds, it will lock in but sometimes it pops back into 2 wheel drive after some distance. At speeds around 10-15mph, I turn it into 4x4 and can hear it click over but then hear a grinding noise coming from the front. Turn it back into 2 wheel drive, the sound goes away. Just yesturday I attempted to pull a car from a ditch, I was in 4x4 at the time of putting tension on the tow rope and as soon as I started pulling, it popped out. Any suggestions?

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Tuesday, February 18th, 2014 AT 6:08 PM

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Tiny
HMAC300
  • EXPERT
  • 47,000 POSTS

Scan for codes and check the motor on tcase to see if it is engaging 4wd all the way. It might be internal to tcase though

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Friday, February 21st, 2014 AT 9:46 AM

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