Fan doesn't shut off....dead battery?

onebigwoodonebigwood Band Wagon
in Electronics, Fueling & Air Conditioning
:(
I just bought this car. It's an '85 Civic Wagon 1.5 and AC, 6 speed. The fan is running when the car is shut off. It runs down the battery. (A brand new battery....dead by morning)
The temp. is a little over half way on the gauge. But with the air on, it runs 3/4 of the way up and closer to the red than I would like to see.
I assume the fan timer switch is staying on..wonder where it is located. Is there a way to bypass it? (or is that a good idea...I dont want it to overheat and blow the head gasket...happened to another one of these I had in the past with a different problem)
The fan comes on when it should, just above half on the temp. gauge. The AC fan and the main fan only come on when the AC is on.

Any help on this would sure be appreciated.
Thanks!

Comments

  • o_fatmike_oo_fatmike_o Wagonist
    you can do it the ol school way and just put a switch on the fan cicuit. but thats weird. so after u shut the car off it stays on till the battery dies? if i remember right doesn't your ECT sensor control the fan? i believe its the one in the head that controls it, not the one on the water neck but im not positive.
  • crxedcrxed Band Wagon
    If you have A/C, there should be three relays on the passenger side just behind the headlight. The two A/C relays should be bolted to a bracket that hangs off the headlight support. The third radiator fan relay should be bolted to the inner fender next to the little grounding box.

    At least, this is how it is on a CRX.

    Also, you could replace your thermostat, trying to keep the temperature under control.
  • o_fatmike_oo_fatmike_o Wagonist
    oh yeah i didn't realize u said it actually over heats. i thought u were saying it just comes on and stays on. honda thermostats usually stay open when they go bad. atleast in all my experiences with civic thermo stats. but yes i would start with the mechanical potion of your cooling sytem. check your water pump make sure its not leaking. flush your coolant, check your radiator make sure its not plugged. and yes pull out your thermostat and prolly replace it. if your fans turn on then u know they work atleast. check all of that and let us know what u find
  • onebigwoodonebigwood Band Wagon
    :( It took care of it. Blew the head gasket. Time to replace the engine (232,000 miles) can not seem to find a rebuilt and wrecking yard motors have to many miles. Any swap easy suggestions or re builders in the northwest (Portland )
  • mr horsepowermr horsepower New Wagonist
    d15a3? if so a d16a1 should work but id double check. I know for sure that a d16y5 wont work.
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