Wiring electric fans - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72gmcshorty · 07-14-2003, 10:19 AM

How do you wire up an electric fan setup? I will be going junkyard searching for a dual fan setup and was wondering how I will wire the thing up. Anyone have a clue?

6869704X4 · 07-14-2003, 01:41 PM

Too bad the search is disabled. Lots of info here.
I used a relay from a GM car(AC relay I think) weatherproof connectors, nice relay. I run two fans, one from a car and one from DAPS. I also ran a switch to disable the fan if I go through deep water. Get as much of the harness as you can. Might find one with a relay in it already.
Anymore questions, just shoot.

dubie · 07-14-2003, 01:46 PM

Look here. this is posted in the FAQ section
http://67-72chevytrucks.com/vboard/s...threadid=50085

6869704X4 · 07-14-2003, 01:59 PM

dubie to the rescue!
I forgot about that one.

**Classic Heartbeat** · 07-14-2003, 02:53 PM

Here is the one I provide with our setup that we sell. WES www.ClassicHeartbeat.com

Longhorn Man · 07-14-2003, 03:57 PM

A toggle switch for back up is a must. Too many newer cars blow head gaskets becouse something goes wrong and the fans won't work. Normally either lack of power, or a bad thermo switch.

BigDave · 07-14-2003, 04:39 PM

Any ideas on how many CFM's they flow and at what RPM's they operate?

**Classic Heartbeat** · 07-14-2003, 05:49 PM

Different fans flow different CFMs. It would depend on what fans you buy. WES www.ClassicHeartbeat.com

72gmcshorty · 08-01-2003, 10:18 AM

Where can I get the thermostat that hooks up to the wiring? I saw in the new classic trucks magazine they use an adjustable one.

**truckster** · 08-01-2003, 11:01 AM

I bought an adjustable one for mine at Checker. I think it cost me about $20-25.

miket · 08-01-2003, 12:05 PM

If you want, you can buy a complete harness for two fans from beCool. It includes two relays and two seperate thermistor switches at two different temps...it's water proof too...

oldsub86 · 08-01-2003, 03:30 PM

check this out

http://www.classictruckshop.com/club...oling/fans.htm

07-14-2003, 10:19 AM	#1
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	Wiring electric fans How do you wire up an electric fan setup? I will be going junkyard searching for a dual fan setup and was wondering how I will wire the thing up. Anyone have a clue? __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd

07-14-2003, 01:41 PM	#2
6869704X4 Registered User Join Date: Jul 2002 Location: SE NM Posts: 769	Too bad the search is disabled. Lots of info here. I used a relay from a GM car(AC relay I think) weatherproof connectors, nice relay. I run two fans, one from a car and one from DAPS. I also ran a switch to disable the fan if I go through deep water. Get as much of the harness as you can. Might find one with a relay in it already. Anymore questions, just shoot. __________________ The more I learn about women, the more I love my truck.

07-14-2003, 01:46 PM	#3
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	Look here. this is posted in the FAQ section http://67-72chevytrucks.com/vboard/s...threadid=50085 __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

07-14-2003, 01:59 PM	#4
6869704X4 Registered User Join Date: Jul 2002 Location: SE NM Posts: 769	dubie to the rescue! I forgot about that one. __________________ The more I learn about women, the more I love my truck.

07-14-2003, 02:53 PM	#5
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,770	Here is the one I provide with our setup that we sell. WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

07-14-2003, 03:57 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	A toggle switch for back up is a must. Too many newer cars blow head gaskets becouse something goes wrong and the fans won't work. Normally either lack of power, or a bad thermo switch.

07-14-2003, 04:39 PM	#7
BigDave I poop on Ford! Join Date: Apr 2002 Location: Houston Area Posts: 295	Any ideas on how many CFM's they flow and at what RPM's they operate?

07-14-2003, 05:49 PM	#8
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,770	Different fans flow different CFMs. It would depend on what fans you buy. WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

08-01-2003, 10:18 AM	#9
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	Where can I get the thermostat that hooks up to the wiring? I saw in the new classic trucks magazine they use an adjustable one. __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd

08-01-2003, 11:01 AM	#10
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,941	I bought an adjustable one for mine at Checker. I think it cost me about $20-25. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson

08-01-2003, 12:05 PM	#11
miket Registered User Join Date: Jan 2003 Location: Seattle WA Posts: 1,466	If you want, you can buy a complete harness for two fans from beCool. It includes two relays and two seperate thermistor switches at two different temps...it's water proof too... __________________ FocuzTech Performance Evergreen Protective Coatings Gatorhyde...the best kept secret in spray in bed lining & protection

08-01-2003, 03:30 PM	#12
oldsub86 Registered User Join Date: Dec 2002 Location: Canada Posts: 695	check this out http://www.classictruckshop.com/club...oling/fans.htm __________________ 1968 Chevy - 292 with a powerglide



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