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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
Same prob. here
I have the same issue, any coasting above 40 mph will bring out the sound - I would describe it as a "zipping" sound, or pneumatic as was mentioned in an earlier posting. Before I go and spend $4 - $600 on a x-fer case I want to find out what else it could be. Anyone else...