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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Engine Cooling System) >> Diagnostic Tests >> Engine Cooling >> Component Tests >> Fan Clutch Test

Fan Clutch Test

WARNING: This page is about a different car, the 2009 Ford Mustang. 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 - Gasoline Engines . For a viscous fan clutch, carry out the following:
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