How to test the electric fan motor on Ford Escort

Discussion in 'General Electronics Chat' started by Gdrumm, Nov 6, 2010.

  1. Gdrumm

    Thread Starter Distinguished Member

    Aug 29, 2008
    Can anyone tell me how to test the electric fan motor on a 1998 Ford Escort, 16v Zetec VCT?

    If I unplug the motor, and put meter leads on the posts,
    1. How should I have my meter set
    2. What am I looking for on the meter
    3. Would a continuity tester be a better test, if so, how to test with that
  2. marshallf3

    Well-Known Member

    Jul 26, 2010
    Most automotive motors read around 2 - 12 ohms of continuity.
  3. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    Does the fan never spin? Does it make a growling noise and move slowly?

    If totally dead, it may be a blown fuse.

    The fuse for the engine and exterior lights is usually under a panel inside the engine compartment, sometimes on the same side as the battery, sometimes on the opposite. May want to check it out as well.

    If the fuse is blown, it may be the bearings of the fan are out. With power disconnected, make sure the blades spin freely. If you have your meter connected to the power jack in Volt mode, a some millivolts should show on the meter as well.

    In the resistance mode, don't spin the fan at all, just make sure there is under about 25 ohms or so on the connector.