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Thread: Radiator fan

  1. #1
    Join Date
    Oct 2006
    Posts
    40

    Radiator fan

    Hey guys, i have a 94 thunderbird sc. The temp gauge goes to almost all the way to the red and the fan still doesnt kick on then the check gauge light comes on. I changed the fan motor and its still not working. Any advice will be helpful. Thanks.

  2. #2
    Join Date
    Jun 2002
    Location
    Grand Rapids, MI
    Posts
    1,142
    Could be the IRCM (Integrated Relay Control Module) or the EEC Coolant Temp Sensor (different sensor than the one that gives you a reading on the dash). The IRCM contains the fan relay. Does the fan come on when you turn the A/C on? Does it come on while scanning the EEC for codes (during its initial self diagnosis)? If so the IRCM is probably okay.

  3. #3
    Join Date
    Oct 2006
    Posts
    40
    I will check that out, I didint think of putting the AC on. And if that doesnt work then ill have it scanned.

  4. #4
    Join Date
    May 2004
    Location
    Va. Beach,Va.
    Posts
    7,158
    check the fuse under the hood,it's a 60 amp for the puller fan and a 30 amp for the pusher fan.i've blown mine a couple of times.
    SCCOA Member #2406
    '94 SC AUTO - 2.3 Whipple
    http://www.sccoa.com/forums/garage_v..._vehicle&id=19

  5. #5
    Join Date
    Oct 2006
    Posts
    40
    Ill check that too. Ill let you guys know what the prob is.

  6. #6
    Joisey Jim Guest
    That's kinda strange, because you have 3 fans on the '94. Atleast one should come on to stop you approaching the red zone. As already stated the main 2 speed fan on the '94 has big fuses under the hood and the low speed winding should engage with the a/c or defroster on (below 47mph). If you are also able to run a scan with a code reader that low speed should also test out. I don't know how to self test the small pusher fan in front of the rad, but I believe it comes on above 228deg. A silly question maybe, but was the motor boiling hot when you hit the red zone; otherwise it maybe (hopefully for you) just a bad temperature sensor.

  7. #7
    Join Date
    Apr 2005
    Location
    BC, Canada
    Posts
    586
    I agree, get a good thermometer and check the temp again. The fan on my 90 works but my a/c or defroster has never turned it on........

  8. #8
    Join Date
    Oct 2006
    Posts
    40
    When i put the AC on the fan goes on so im guessing its either a thermostat or a sensor right?

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