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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1892 (Transfer Case - Four Wheel Drive (4WD) Systems -- F250-F550 Super Duty) >> Diagnostic Tests >> Four Wheel Drive (4WD) Systems - Electronic Shift >> Pinpoint Tests >> Pinpoint Test P: Electronic Shift On The Fly (ESOF) Functional Test >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

When operating in 4x4 high (4H), the transfer case and both pulse vacuum hubs (PVHs) are locked. When in 4x4 low (4L), the transfer case low range gear set provides an additional 2.72 gear reduction. When operating in two wheel drive (2H), the transfer case and both PVHs are unlocked.

Possible Causes

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