electric fan switch? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

XXL · 05-11-2003, 09:40 PM

What have you used for temperature controlled fan switch? I'm looking at Summit now and they appear to have 4-5 different ones available.

Kenneth

*Piston* · 05-11-2003, 09:46 PM

I looked around for different setups, most costing 50.00 or more, then I ran across an adjustable electric fan setup. This comes with all the wiring, a set of relays and a temp probe that goes into the radiator cooling fins. It's all enclosed in a mounting block and works really well. Best of all I think it cost $25.00. I can get the part number for you if this is what your looking for.

XXL · 05-11-2003, 09:47 PM

Quote:

Originally posted by Piston
I looked around for different setups, most costing 50.00 or more, then I ran across an adjustable electric fan setup. This comes with all the wiring, a set of relays and a temp probe that goes into the radiator cooling fins. It's all enclosed in a mounting block and works really well. Best of all I think it cost $25.00. I can get the part number for you if this is what your looking for.

Sure! This sounds like just what I'm looking for.

Thanks,

Kenneth

Jwill41 · 05-11-2003, 09:51 PM

$30 at Pep Boys.
They also have one that is adjustable for $35.

*Piston* · 05-11-2003, 09:56 PM

I'll get the number for you in the morning (I have to call the parts store we buy from).

Here is a shot of mine installed. This model controls up to 2 fans and has the adjuster built into this block.

Low69CST · 05-11-2003, 10:50 PM

i used painless's kit, works perfect.

XXL · 05-11-2003, 11:23 PM

Quote:

Originally posted by Piston
Here is a shot of mine installed.

Longhorn Man · 05-11-2003, 11:47 PM

If the kit does not include it, it might be a good idea to have a manual over ride toggle in the cab some place...maybe in the glove box if you don't want to look at a stupid switch every day.
I waould also stear clear of the type that you shove the probe into the rad hose...I've seen that type cause too many problems in the past.

72ChevyCheyenne · 05-12-2003, 07:35 AM

I went with the Painless kit myself. I prefer to have the sensor in the head instead of the radiator. This way the fans will come on based on the engine temp.

Jwill41 · 05-12-2003, 07:43 AM

Again, I feel that the fans should come on when the hot water goes to the radiator. The fans cool the water in radiator, not the block. So the sensor should be in the radiator near the top inlet. The one I have is pushed through the fins.

Blue Beard · 05-12-2003, 08:22 AM

jwill41

Do you have a brand name and part number on the one you posted?

Don't know of any PEP Boys out here....

Jwill41 · 05-12-2003, 11:39 AM

It is made by Hayden but I dont have the part number. I think there was some info on the Hayden website.

*Piston* · 05-12-2003, 11:50 AM

Ok, just got a call back and I was wrong on the price.
They screwed up on mine when I bought it, it was only 30.00 then.

Now the price is around 40.00, but I'd pay that again... its a good design and works well.

oldsub86 · 05-12-2003, 05:29 PM

If you want inexpensive, check this out ...

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

Blue Beard · 05-12-2003, 10:42 PM

Good article, including the wiring diagram....

Longhorn Man · 05-12-2003, 11:17 PM

If the switch was in the head and not the radiator, it would not work properly.
The coolant in the engine should be cool as it coes in since the rad just cooled it, so then the switch would turn the fan off....but the rad just filled up with hot coolant, so now the fan is off when it needs to be on.
The new vehicles have the sensor in the rad.

*Piston* · 05-12-2003, 11:22 PM

They are used both ways guys... Depending on the manufacture of the car/truck. Alot of the imports like to use a sensor in the radiator were as most american cars locate the sensor in the head/intake/thermostat housing.

Either one will work just fine though.

Longhorn Man · 05-12-2003, 11:56 PM

Hmmmm, never seen one like that piston.
disregard my last post then.

05-11-2003, 09:40 PM	#1
XXL Señor Member Join Date: May 2002 Location: Edge of the world Posts: 5,367	electric fan switch? What have you used for temperature controlled fan switch? I'm looking at Summit now and they appear to have 4-5 different ones available. Kenneth __________________ Craigslist \| ebay \| Engrishtees \| www.myattitudesucks.com \| Follow me on Twitter

05-11-2003, 09:51 PM	#4
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	$30 at Pep Boys. They also have one that is adjustable for $35. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

05-11-2003, 10:50 PM	#6
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	i used painless's kit, works perfect. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

05-12-2003, 07:35 AM	#9
72ChevyCheyenne Registered User Join Date: May 2002 Location: Woodstock, GA USA Posts: 300	I went with the Painless kit myself. I prefer to have the sensor in the head instead of the radiator. This way the fans will come on based on the engine temp. __________________ Bill Durham http://home.attbi.com/~bulldurham 72 Cheyenne Restoration in progress Currently: frame sand blasted and powdercoated, Inline Tube brake and fuel lines, Blazer tank in rear, Holley Red electronic fuel pump, Eaton posi with 3.42 gears, 2 1/2" drop front spindles, 4" drop rear springs with adjustable panhard bar, KYB shocks, ZZ 502/502 GM Performance crate engine, Zoops brackets and pulleys, Vintage Air, dual electric fans, Ram Air II hood and late model sport side bed.

05-12-2003, 07:43 AM	#10
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	Again, I feel that the fans should come on when the hot water goes to the radiator. The fans cool the water in radiator, not the block. So the sensor should be in the radiator near the top inlet. The one I have is pushed through the fins. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

05-11-2003, 09:46 PM	#2
Piston Account Suspended Join Date: Oct 2002 Location: Olathe, KS Posts: 2,300	I looked around for different setups, most costing 50.00 or more, then I ran across an adjustable electric fan setup. This comes with all the wiring, a set of relays and a temp probe that goes into the radiator cooling fins. It's all enclosed in a mounting block and works really well. Best of all I think it cost $25.00. I can get the part number for you if this is what your looking for.

05-11-2003, 09:56 PM	#5
Piston Account Suspended Join Date: Oct 2002 Location: Olathe, KS Posts: 2,300	I'll get the number for you in the morning (I have to call the parts store we buy from). Here is a shot of mine installed. This model controls up to 2 fans and has the adjuster built into this block.

05-11-2003, 11:47 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	If the kit does not include it, it might be a good idea to have a manual over ride toggle in the cab some place...maybe in the glove box if you don't want to look at a stupid switch every day. I waould also stear clear of the type that you shove the probe into the rad hose...I've seen that type cause too many problems in the past.

05-12-2003, 08:22 AM	#11
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,831	jwill41 Do you have a brand name and part number on the one you posted? Don't know of any PEP Boys out here.... __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

05-12-2003, 11:39 AM	#12
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	It is made by Hayden but I dont have the part number. I think there was some info on the Hayden website. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

05-12-2003, 11:50 AM	#13
Piston Account Suspended Join Date: Oct 2002 Location: Olathe, KS Posts: 2,300	Ok, just got a call back and I was wrong on the price. They screwed up on mine when I bought it, it was only 30.00 then. Now the price is around 40.00, but I'd pay that again... its a good design and works well.

05-12-2003, 05:29 PM	#14
oldsub86 Registered User Join Date: Dec 2002 Location: Canada Posts: 695	If you want inexpensive, check this out ... http://www.classictruckshop.com/club...oling/fans.htm __________________ 1968 Chevy - 292 with a powerglide

05-12-2003, 10:42 PM	#15
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,831	Good article, including the wiring diagram.... __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

05-12-2003, 11:17 PM	#16
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	If the switch was in the head and not the radiator, it would not work properly. The coolant in the engine should be cool as it coes in since the rad just cooled it, so then the switch would turn the fan off....but the rad just filled up with hot coolant, so now the fan is off when it needs to be on. The new vehicles have the sensor in the rad.

05-12-2003, 11:22 PM	#17
Piston Account Suspended Join Date: Oct 2002 Location: Olathe, KS Posts: 2,300	They are used both ways guys... Depending on the manufacture of the car/truck. Alot of the imports like to use a sensor in the radiator were as most american cars locate the sensor in the head/intake/thermostat housing. Either one will work just fine though.



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05-12-2003, 11:56 PM	#18
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Hmmmm, never seen one like that piston. disregard my last post then.

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