Quote:
Originally Posted by wwest
The FEH & MMH use the same 4WD system, basically, as did, does, the old Ford Aerostar. In "auto" position the system monitors for torque induced wheelspin/slip and engages the 4WD coupling.
The Aerostar included an actual transfer/diff'l case and that allowed it to DRIVE both front and rear simultaneously, 30/70 normally and then 50/50 with wheelspin/slip.
The FEH/MMH on the other hand just uses a simple clutch coupling to drive the rear wheels when conditions warrant.
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This sounds more like the older AWD system of the Escape, 2001-2007. The newer system is electronically controlled, not a simple "mechanical slip" system. The Ford writings indicate that it can go into AWD even before slippage.