Electric Pusher Fan installed behind radiator - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CochinoFilipino · 03-12-2006, 09:32 PM

So I walk in front of my truck after going for a little ride and notice that warm air is blowing out from the grill area.

I pop open the hood and notice that whoever had installed the fan (some PO) used a pusher type fan and installed it behind the radiator.

I'm planning on moving it to the front. Am I missing something? Anyone know a legitimate reason why an electric pusher fan would be installed behind the radiator and blow outward?

cdowns · 03-12-2006, 09:48 PM

you might want to check the wiring it could be a puller fan wired backwards

sleepyboy · 03-12-2006, 09:59 PM

Puller fans are more efficient from what I have read. I was going to use both a pusher and puller, but most articles I have read said that using both fans is more restricting to airflow than the benefit you would get by using both.. I have a 350 with a/c in south texas and with a 4 core radiator, no problems so far...

CochinoFilipino · 03-12-2006, 09:59 PM

It's a one-way fan, not reversible. It's got a symbol with an arrow in the push direction and a crossed out arrow in the pull direction.

I don't know exactly what the differences are but I've read that a pusher-only fan will not pull efficiently if you reverse it.

03-12-2006, 09:32 PM	#1
CochinoFilipino Registered User Join Date: Feb 2006 Location: Republic of California Posts: 345	Electric Pusher Fan installed behind radiator So I walk in front of my truck after going for a little ride and notice that warm air is blowing out from the grill area. I pop open the hood and notice that whoever had installed the fan (some PO) used a pusher type fan and installed it behind the radiator. I'm planning on moving it to the front. Am I missing something? Anyone know a legitimate reason why an electric pusher fan would be installed behind the radiator and blow outward? __________________ '67 C10 Short Stepside 5.0TPI/700R4

03-12-2006, 09:48 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Electric Pusher Fan installed behind radiator you might want to check the wiring it could be a puller fan wired backwards __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

03-12-2006, 09:59 PM	#3
sleepyboy '69 Step Join Date: Mar 2005 Location: Marion, Texas Posts: 722	Re: Electric Pusher Fan installed behind radiator Puller fans are more efficient from what I have read. I was going to use both a pusher and puller, but most articles I have read said that using both fans is more restricting to airflow than the benefit you would get by using both.. I have a 350 with a/c in south texas and with a 4 core radiator, no problems so far...

03-12-2006, 09:59 PM	#4
CochinoFilipino Registered User Join Date: Feb 2006 Location: Republic of California Posts: 345	Re: Electric Pusher Fan installed behind radiator It's a one-way fan, not reversible. It's got a symbol with an arrow in the push direction and a crossed out arrow in the pull direction. I don't know exactly what the differences are but I've read that a pusher-only fan will not pull efficiently if you reverse it. __________________ '67 C10 Short Stepside 5.0TPI/700R4 Last edited by CochinoFilipino; 03-12-2006 at 10:02 PM.



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