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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2501 (Transfer Case - Four Wheel Drive (4WD) Systems -- F250-F550 Super Duty) >> Diagnosis And Testing >> Four Wheel Drive (4WD) Systems - Mechanical Shift >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2010 Ford Pickup, 2010 Ford F550 Super Duty, 2010 Ford F450 Super Duty, and 2010 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Visually inspect for obvious signs of mechanical and electrical system concerns.
    VISUAL INSPECTION CHART

    Visual Inspection Chart
    Mechanical Electrical
    • Front axle assembly
    • Manual hublocks
    • Shift lever and/or linkage
    • Driveshaft and U-joints
    • Fluid leaks
    • Matching tire size
    • Transfer case
    • Wiring harness
    • Mode Indication Switch (MIS)
    • Connector(s)
    • Circuitry
  2. Carry out the Manual Shift-On-Stop (MSOS) Functional Test. GO to PINPOINT TEST F .
  3. If the concern is still present after the Manual Shift-On-Stop (MSOS) Functional Test, GO to SYMPTOM CHART - MECHANICAL SHIFT  or GO to SYMPTOM CHART - NVH .
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