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Invisiblesherm
sherman
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Registered: 10/02/03
Posts: 20,498
Loc: Euthanasia
car question
    #5882002 - 07/20/06 05:00 PM (17 years, 6 months ago)

its a 1985 Honda accord
it overheats while the car is not moving
the radiator fans don't come on
I checked the fuse and replaced the fan sensor thats screws into the radiator
I also checked the wiring and everything looks to be connected ok
the fans still don't come on

What have I missed?
Any suggestions.
Thanks.


--------------------
shroomery.
not even once.



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Invisiblerod
Ψ
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Registered: 06/29/05
Posts: 3,727
Re: car question [Re: sherm]
    #5882029 - 07/20/06 05:10 PM (17 years, 6 months ago)

I assume it runs on 12V/ DC. Have you tried running some
jumper wires, from the battery, to the fan direct, and see
if it runs then? If it does not still run, your fan is bad.
If it does run, then, something is stopping from coming on.
Maybe it has a thermal fuse, or resistor somewhere in the wiring.
Sorry, but I have never had an Honda.


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Invisiblemalarki
Master Jack ofAll Trades,Realist
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Registered: 06/17/06
Posts: 200
Loc: Ashittown, USA
Re: car question [Re: rod]
    #5882332 - 07/20/06 06:56 PM (17 years, 6 months ago)

The fan will run off a 9v battery if you have one use it and two pieces of speaker wire. If you connect them and it works then its the switch.. Just run a toggle switch with a fuse  :smile:


--------------------
~*~I'm also an educated guesser, and knowledge seeker :smile: If I haven't done it, I know someone who has. IF I don't know, I know someone who does! I am a realist so deal with it, if you don't like it you can choose to not read it!


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Invisiblemalarki
Master Jack ofAll Trades,Realist
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Registered: 06/17/06
Posts: 200
Loc: Ashittown, USA
Re: car question [Re: malarki]
    #5882337 - 07/20/06 06:58 PM (17 years, 6 months ago)

Also remember the fan runs off  your temp sensor for your radiator. So if your thermostat is bad that will cause it to over heat b/c its not reading the correct temp (to kick on fan at high temp) so if your fan does work, that would be my next bet. You can get a cooler running thermostat too, that will kick the fan on at lower temps :smile:


--------------------
~*~I'm also an educated guesser, and knowledge seeker :smile: If I haven't done it, I know someone who has. IF I don't know, I know someone who does! I am a realist so deal with it, if you don't like it you can choose to not read it!


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Offlineiateshaggy
i haxor 360s
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Posts: 4,707
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Last seen: 1 month, 9 days
Re: car question [Re: malarki]
    #5882667 - 07/20/06 08:38 PM (17 years, 6 months ago)

thermostats don't work that way. they just open and close at a certain temp. fans also usually come on when u run your a/c.


--------------------
You are a filipina sex goddess who wants to fuck me until I fall asleep, so then you can tickle my balls and see if the legend of my diamond filled nutsuck is true.  I am a white man from costa rica, who smells like lime jello.


I can flash/jtag/repair 360's, pm for details.


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Invisiblesherm
sherman
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Registered: 10/02/03
Posts: 20,498
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Re: car question [Re: iateshaggy]
    #5882750 - 07/20/06 08:52 PM (17 years, 6 months ago)

the fans work
the fans turn on when I turn the a/c on
the a/c doesn't work any more though

I should have said that in the first post, sorry


the fans wont come on while the car is just running though.


--------------------
shroomery.
not even once.



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Offlineiateshaggy
i haxor 360s
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Re: car question [Re: sherm]
    #5882821 - 07/20/06 09:13 PM (17 years, 6 months ago)



--------------------
You are a filipina sex goddess who wants to fuck me until I fall asleep, so then you can tickle my balls and see if the legend of my diamond filled nutsuck is true.  I am a white man from costa rica, who smells like lime jello.


I can flash/jtag/repair 360's, pm for details.


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Invisiblerod
Ψ
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Registered: 06/29/05
Posts: 3,727
Re: car question [Re: sherm]
    #5882889 - 07/20/06 09:36 PM (17 years, 6 months ago)

I google this, and this seems to be what is coming back.

bad thermostat
plugged up radiator
blown head gasket{ is there water on the oil dip stick}?


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Invisibledaussaulit
Forgetful

Registered: 08/06/02
Posts: 2,894
Loc: Earth
Re: car question [Re: sherm]
    #5883058 - 07/20/06 10:33 PM (17 years, 6 months ago)

If you don't want to spend money to repair it, I would suggest that you try to keep the car cruising at 30 mph, and turn the vent on and set the temp the the highest possible.


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OfflineChuangTzu
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Registered: 09/04/02
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Re: car question [Re: sherm]
    #5883232 - 07/20/06 11:33 PM (17 years, 6 months ago)

Have you found a wiring diagram? If so follow the whole relevant path with a multimeter.


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InvisibleLouiseLouise
starstruck
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Registered: 11/02/04
Posts: 3,898
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Re: car question [Re: sherm]
    #5883788 - 07/21/06 07:25 AM (17 years, 6 months ago)

If the fans work, but won't come on automatically, it is probably a faulty relay. The relay switch is usually located in a box mounted on the firewall.
*Haynes manuals are invaluable.

GL


--------------------
"That's why you get in close to them, and then take the picture!! Don't be a pussy!" ~CC


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Invisiblesherm
sherman
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Registered: 10/02/03
Posts: 20,498
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Re: car question [Re: LouiseLouise]
    #5884508 - 07/21/06 01:50 PM (17 years, 6 months ago)

i put in a new thermostat

and now the fans come on

woooooooo

i wonder how the thermosat made the difference?
or if the fans just decided to work?!?!

oh well.
i hope they keep working

thanks for the input everyone.


--------------------
shroomery.
not even once.



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Invisiblerod
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Registered: 06/29/05
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Re: car question [Re: sherm]
    #5885097 - 07/21/06 05:22 PM (17 years, 6 months ago)

I guess since I havent every own a car with electric fans,
I,m not sure how it fixed it. If the thermostat, was stuck
open, I would have thought that the car would run cool,
but you said it was overheating. If the thermostat was stuck
closed, I would have thought the fan would be wanting to run all the time, but still overheat. Beats the hell out of me.

But glad its fixed for you. :thumbup:


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Offlineiateshaggy
i haxor 360s
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Re: car question [Re: sherm]
    #5885462 - 07/21/06 07:17 PM (17 years, 6 months ago)

woo hoo, good job gomp!!!


--------------------
You are a filipina sex goddess who wants to fuck me until I fall asleep, so then you can tickle my balls and see if the legend of my diamond filled nutsuck is true.  I am a white man from costa rica, who smells like lime jello.


I can flash/jtag/repair 360's, pm for details.


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OfflineGomp
¡(Bound to·(O))be free!
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Re: car question [Re: iateshaggy]
    #5887858 - 07/22/06 03:20 PM (17 years, 6 months ago)

:confused::thumbup:


--------------------


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Disclaimer!?


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InvisibleLouiseLouise
starstruck
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Re: car question [Re: sherm]
    #5889035 - 07/22/06 09:36 PM (17 years, 6 months ago)

Glad you got it fixed :thumbup:
I just can't say enough good things about the haynes manuals, especially with all the electronic possibilities. They will lead you through a step by step process, explaining how to test each part for continuity.
Without these, I'd be lost, I'm liek electronically retarded :tongue:

:thumbup:


--------------------
"That's why you get in close to them, and then take the picture!! Don't be a pussy!" ~CC


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Invisiblemalarki
Master Jack ofAll Trades,Realist
Female User Gallery

Registered: 06/17/06
Posts: 200
Loc: Ashittown, USA
Re: car question [Re: iateshaggy]
    #5889042 - 07/22/06 09:38 PM (17 years, 6 months ago)

Quote:

iateshaggy said:
thermostats don't work that way.  they just open and close at a certain temp.  fans also usually come on when u run your a/c.




Oh Really? OH did I mention I have been a back yard mechanic since I was 16? lol I just quit my dead end job being the "EVERYTHING girl" at your local parts store. (going through phase in life where i tried to get a pointless job that didnt pay me enough so i didnt have to think and could be mindles... ended up have to run the store for next to no pay.. I say ....  GOODBYE.. You cant pay me enough..I want to have a no mind job... ) Yes. I was the girl that told you what part you needed. I have been building mudd trucks for mudd drags, racing imports/ and domestics, sprint cars,  and motorcycles since I was 16. If I wanted it... I built it...  Master Jack of All Trades :smile:

I am glad it works! enjoy :smile:

FYI: Chilton is another excellent manual.
The thermostat is what reads the temp of the engine. If there is no temp reading it doesnt know what to do, may have been closed b/c at start up engine was cold, then the sensor goes out but therm is still closed. It just has no temp reading to know whether to turn on the fan or not.. At a certain temp  (depended on your therm it can be 170-190 degrees) it tells the motor its to hot. So when its at 180 degress it opens allowing coolant to circulate and also electronicly triggers the fans to start (pulling the air past the radiator with cool fluid) blowing cold air on the moter which cools it. 
(random fact, my first motorcycle was an '87 Ninja ZX6R first year of this liquid cooled technology in a bike)



--------------------
~*~I'm also an educated guesser, and knowledge seeker :smile: If I haven't done it, I know someone who has. IF I don't know, I know someone who does! I am a realist so deal with it, if you don't like it you can choose to not read it!


Edited by malarki (07/22/06 09:48 PM)


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