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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (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 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 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

    Mechanical Electrical
    • Front axle assembly
    • Manual hublocks
    • Shift lever and/or linkage
    • Driveshaft and U-joints
    • Fluid leaks
    • Matching tire size
    • Transfer case
    • Wiring, terminals or connectors
    • Mode Indication Switch (MIS)
  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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