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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
Thanks for posting back up with your results. I saw your question but was unsure about what might be wrong - but I was thinking 4X4 control module. Glad you got it fixed.
Your mechanic isn't quite correct.... if it's stuck in low, it CAN be the shift motor, but not necessarily. If the GEM (or in this case the 4x4 shift module) is calling for an uncommanded shift, it can be caused by a lot of different electrical gremlins.