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Cooling fan does not turn on automaticallyy

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    #1

    Cooling fan does not turn on automaticallyy

    Previous History:
    I was setting the TPS I disconnect the cable on top of the driver suspension where the multimeter suppose to go to.
    I accidentally connect it back with the car on.
    Blown a fuse.
    replaced the fuse and the car start fine

    Ever since then My temp gauge acting up and stay on H when the car is ice cold

    =============

    I can't tell if my car overheat because i shorted out my temp gauge. it stuck on high on when it is plug in to ECT sensor or ground to the body.
    ECT sensor is good. when temp warm up it got 32 ohm


    i try to jump the sensor on the head for the fan with paper clip. It won't turn on


    I switch fan cooling relay with power window (fuse box) and that relay working fine

    both fan turn on if i turn on A/C
    lower hose is hot = thermostat is good

    fan does not turn on when i turn off the car after it been running for 30min


    what to check next?
    Last edited by XcluziveAZN; 04-02-2011, 04:52 PM.
    Tags: None
    #2
    Check your temp gauge connection right below the distributor... it might have became loosen,.. bad or corrode.
    Checkout my MR: http://www.cb7tuner.com/vbb/showthread.php?t=165984

    Comment

      #3
      that is not loose

      it did test

      when i have that cable to the ground my temp guage jump to hi and unplug = cold. i'm sure my guage is shorted. my rpm sometime goes crazy


      i think my fan timer unit under the dash is busted

      is there any test on this unit or i have to get another one

      Comment

        #4
        Ok

        I replaced the Radiator Fan Timer Unit under the dash

        fan doesn't turn on still


        I try to jump connector connected to Coolant Temp Sensor Switch A to tell the timer that the car is hot. The fan does not turn on.
        I get 5v from that Cable also

        i double check the fuse under the hood and dash and everything is good

        I'm running out of idea

        Comment

          #5
          http://www.cb7tuner.com/vbb/showthre...ht=coolant+fan

          I been following this thread and didn't get to read the end. I jumped the wrong connector

          I was suppose to jump Sensor on Thermostat housing

          I jumped that and my fan turn on. I guess my sensor on the thermostat housing is broken.

          I will replace that and keep you posted

          Comment

            #6
            I jumped Switch A and Switch B

            Switch A turn on Both Fan

            Switch B turn on Radiator Fan

            is both of the switch broken?

            i'm lost now.


            Comment

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