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View Full Version : Radiator fans not working = overheating


dc4u
16-11-2008, 08:15 PM
Hey guys,

ive done some searches but havnt found the specific answer to my question. My car overheats because my fans dont work. but when i turn the ac on, they switch on and cool down the engine.

How do i fix this problem, how much will it cost and is it easily fixable?

Thanks
DrTran
16-11-2008, 08:57 PM
It's the temperature sending unit on your thermostat housing. to test it get a paper clip and jump it and your fan should turn on and stay on. you can use this as a temporary fix or you can just leave it. if you want to have the fan running all the time when your car is on. I just leave it running all the time on my car.
chargeR
16-11-2008, 09:04 PM
I think that it is possible that the ECT sensor that reads the coolant temperature and tells the ECU when to turn on the fans is faulty. Refer to this thread for info on the sensor LINK (http://www.ozhonda.com/forum/showthread.php?t=40005&highlight=coolant+temperature+sensor) and how to test it, from that thread it sounds like the two pins on the sensor should be open circuit at low temps and closed when hot.

I am sure someone with more experience with B series will chime in soon.

EDIT: Too slow. What he said ^^
Int3gra-T
16-11-2008, 09:09 PM
Fan switch...
Int3gra-T
16-11-2008, 09:09 PM
roughly 60 bucks i think..
dc4u
17-11-2008, 11:38 AM
woo thanks fellaz
Int3gra-T
17-11-2008, 05:55 PM
was it the fan switch?
or jammed thermo?
dynosaur
17-11-2008, 10:03 PM
It's the temperature sending unit on your thermostat housing. to test it get a paper clip and jump it and your fan should turn on and stay on. you can use this as a temporary fix or you can just leave it. if you want to have the fan running all the time when your car is on. I just leave it running all the time on my car.

any DIYs link that can show us how to make the fan turn on at all time (or ON/OFF switch control ?

thanks :)
tekung89
18-11-2008, 10:07 PM
thermo switch quoted at repco 48-53bux
Int3gra-T
19-11-2008, 12:15 AM
is that genuine part?
shadou
19-11-2008, 12:28 AM
wouldn't be, Repco won't sell genuine parts, all their brands are generic but pretty much the same deal
Int3gra-T
19-11-2008, 12:31 AM
id pay the extra 7 and get genuine :)
string
19-11-2008, 07:45 AM
Mine died on my maroon DA9. I replaced it with a $0.50 switch from Dick Smith, and it usually stays on permanently.
EG5
19-11-2008, 08:47 AM
Mine died on my maroon DA9. I replaced it with a $0.50 switch from Dick Smith, and it usually stays on permanently.


great on summer days , bad in winter days
Int3gra-T
19-11-2008, 10:16 AM
lol haha
tekung89
20-11-2008, 10:42 AM
fan being on constantly doesnt effect ur fuel economy?