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Thread: cooling fan

  1. #1

    Default cooling fan

    So stuck in traffic today the miata decided to act up. Temp gauge made it to 12, so I put the fan on full hot (that was fun) and pulled over. Fans weren't kicking on unless ac was on. Jumped the TFA and GND pins to check the fan, fan works. Left it jumpered for the rest of my drive. So bad thermoswitch? Or bad relay? My thought was if it was the relay even jumpering it wouldn't work, right? Are the relay and switch o'reily/ vatozone parts or do I need to hit up the dealership?
    [SIGPIC][/SIGPIC]

  2. #2

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    Under Cooling switch.... that's why I couldn't find it... http://m.oreillyauto.com/mt/www.orei...1963&ppt=C0039
    [SIGPIC][/SIGPIC]

  3. #3

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    Thermoswitch is what solved my fan issues on the 1990 I had. Bought it at Oreillys.

    You migbt also check to see if you have a "lazy" radiator fan motor if you still have the original motor. Those fan motors don't last forever.
    1990 White NA - SOLD
    1994 Black NA - SOLD
    2006 Red NC - GT with limited slip, HIDs, all OEM.

  4. #4

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    Both fans seem to have equal "oomph" when on.... how does one test laziness?
    [SIGPIC][/SIGPIC]

  5. #5

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    Quote Originally Posted by sxk122 View Post
    Both fans seem to have equal "oomph" when on.... how does one test laziness?
    Amperage test will tell you if the fan is running in spec.

    http://www.miata.net/garage/CoolingSystemProblems.html

  6. #6
    Chassis Designer
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    My 94 needed a new relay a month or so ago. Got it on Ebay for 6 bucks. Autozone had it in stock as well but 27.

  7. #7

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    Quote Originally Posted by sxk122 View Post
    Both fans seem to have equal "oomph" when on.... how does one test laziness?
    The hight tech method is: Wear a heavy glove and try to stop the fan with your hand. The lazy fan should be able to be stopped with relative samll amount of pressure.
    Gabriel

  8. #8

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    Remind me not to start a dfwmiata health care cooperative.
    Maybe 4 wheels aren't so bad after all... wickett.org
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  9. #9

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    Quote Originally Posted by gabkwong View Post
    The hight tech method is: Wear a heavy glove and try to stop the fan with your hand. The lazy fan should be able to be stopped with relative samll amount of pressure.
    This also works for testing the disposal in your sink.

  10. #10
    Team Cheap Bastard
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    Quote Originally Posted by jrj512 View Post
    This also works for testing the disposal in your sink.
    ...and your lawnmower blade.

  11. #11

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    Quote Originally Posted by sammm View Post
    ...and your lawnmower blade.
    Great for industrial machinery and ferris wheels too!
    Polished Turd Racing

    Mick wrote: "I think Jerrett is the best autocrosser I have ever seen naked."

  12. #12

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    If you've got a "lazy" fan motor, maybe you should make it go out and earn its keep. Surely it could mow the lawn or walk the dogs or something...

    Damn lazy and shiftless fan motors...
    '94 Black & Black & Tan
    '99 head swap, JR header, TDR intake & header blanket, MegaSquirt, RB hollow bar, Tein Flex, 15x8 6ULs, HD M2 Sport, FM cat, Borla cat-back, black '95M interior, MOMO Zebrano, IL Motorsport console...

    Dyno Days
    8/16/08 (bone stock): 103.1 hp/99.0 lb-ft - Dynojet
    8/23/08 (Borla cat-back): 108.2 hp/104.1 lb-ft - Dynojet
    8/13/11 (more stuff...): 126 hp/116 lb-ft - Mustang dyno

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