Radiator Fan

Third Generation Honda Prelude topics

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rob91lude
Prelude Enthusiast
Posts: 8
Joined: Tue Mar 23, 2010 10:33 pm

Radiator Fan

Post by rob91lude »

ok ive gotten most things fixed on my car but my fan doesnt seem to be turning on and i dont want to bust my radiator again...and advice?

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91darkness
Prelude Guru
Posts: 155
Joined: Mon Dec 28, 2009 4:00 pm
Prelude Model: 3rd gen 91 Si ALB
Location: Charleston, SC

Re: Radiator Fan

Post by 91darkness »

I just had mine replaced recently and the motor was dead. I didnt get to check any fuses or wiring, it was discovered when i had the engine swapped. This is probably, a backyard mechanic suggestion lol, but you could hook up a battery to the (+) and (-) parts of the fan just to see if its the motor. Oh yeah, check out the post called Cooling Fans.

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spiffyguido
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Joined: Fri Nov 11, 2005 2:55 am
Prelude Model: 1991 SE-SR
Location: Alberta, Canada
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Re: Radiator Fan

Post by spiffyguido »

It's probably either wiring to the fan, or the temp sensor in the bottom of the radiator isn't working. Check the wiring of the temp sensor.

rob91lude
Prelude Enthusiast
Posts: 8
Joined: Tue Mar 23, 2010 10:33 pm

Re: Radiator Fan

Post by rob91lude »

would it have a temp sensor on the bottom of an aftermarket radiator too?

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spiffyguido
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Prelude Model: 1991 SE-SR
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Re: Radiator Fan

Post by spiffyguido »

It should. The ECU needs the output of that sensor.

rob91lude
Prelude Enthusiast
Posts: 8
Joined: Tue Mar 23, 2010 10:33 pm

Re: Radiator Fan

Post by rob91lude »

would it still pass smog even without it? im supposed to get the smog done this week but wont have a chance to get under it till saturday

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spiffyguido
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Prelude Model: 1991 SE-SR
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Re: Radiator Fan

Post by spiffyguido »

It should. But be wary of your engine temperature because that sensor is required to activate the radiator fan.



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