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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2631 (Engine Cooling - Gasoline Engines -- F250-F550 Super Duty) >> Diagnosis And Testing >> Engine Cooling >> Component Tests >> Fan Clutch Test >> Notes

Fan Clutch Test: Notes

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the engine OFF and wait until the fan comes to a complete stop.
  2. Spin the fan blade by hand. A light resistance should be felt. If there is no resistance or very high resistance, the minimum and maximum fan speeds must be checked. For an electronically actuated fan clutch, refer to the INTRODUCTION article. For a viscous fan clutch, carry out the following:
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