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Diagnosing Fan Failure

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    #1

    Diagnosing Fan Failure

    Neither the condensor nor the radiator fans are working, and I need help figuring out the problem. I've replaced the thermostat and both switches. I've checked all of the fuses in the engine block and the driver's panel block. I've checked the radiator relay (switched it with the power window relay and the windows worked), but I can't find the condensor relay. I've jumped the motors and both work. I've let the car warm up to 1/2 way at idle, and didn't get a reading on either switches. I tried to jump the connectors that plug into the switches and I didn't get anything, however I'm not sure if it's because the connectors are blown or if the switch activates them a special way. Also, when I press the front defrost button, it turns amber. However when I press the A/C button, it doesn't turn green. Neither buttons turn on the fans. Thanks for any help.

    PS - I really need this fixed, is there any other forum that I can post it at in order to get the problem taken care of faster?
    Tags: None
    #2
    You said you jumped the motors and they both work? the fans i mean...


    Try this:

    flush out your coolant. Refill it properly, with the bleeder screw and all...

    after a complete flush and refill, you need to babysit for a while...
    Turn the car on, let it run for a good 10-15 minutes...this is considered a cycle.

    The temp meter in the gauge should go to at least half or just below the half mark. Do not turn on anything else, A/C, Heater, lights, radio...etc.

    While the car is running, the fan(s) should kick on.

    Im kinda confused with your post...
    ...if they dont kick on, they can be seized, the fan motors...but you said they worked?

    (with the car off and 100% cool, please, turn the fans yourself...do they move?)

    1990 Accord Lx F22a1(Daily) SOLD - will be missed
    1990 Prelude Si B21a1 (Fun car!)

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      #3
      Yes, the fans work manually. I hooked up a couple wires directly from the battery to the connector right next to the fan. I've run the car with everything turned off and let it warm up, and still the fans don't turn on. I heard that if you turn the a/c on, then the condensor fan will turn on automatically, and thought that maybe the light on the button not coming on was related.

      Comment

        #4
        Mine is having the same problem. However, liking the idea of having manual control of the fans, I'll probably just wire up some switches. .. Though it doesn't really help solve your problem, you may want to do it as a temporary solution.

        2¢

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          #5
          power ground fuse

          1966 Chevy Nova
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          2003 Honda Ruckus


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            #6
            Originally posted by BandwagonPilot
            but I can't find the condensor relay.
            it's on the drivers side.

            could be a bad fan timer as well. later.
            Avoiding dirt at all costs

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              #7
              Fan keeps turning on after my car is off. My car isn't getting hot .
              It hasnt done this 4 a while. I did 1 of the DIY engine cleaning's the other day , and it started again. Any help would be sweeet.

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                #8
                Originally posted by ellwoodLX
                Fan keeps turning on after my car is off. My car isn't getting hot .
                It hasnt done this 4 a while. I did 1 of the DIY engine cleaning's the other day , and it started again. Any help would be sweeet.
                Engine fans do that sometimes. That's why you should disconnect the battery -ve terminal when you're working in the engine bay ^.^
                93 EXR
                In the works ^.^

                Todo:
                Blower Unit replacement
                Climate Control Knob replacement
                Deck install
                SRI install
                New Brake Pads
                Rotor regrind
                Wheel polishing
                New struts (?)
                New springs

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                  #9
                  Is there a way to check the fan timer?

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