Weird Cooling Fan problem

Dime333 · 08-04-2009, 05:58 PM

Hi i tried to hook up a manual fan switch on my 94 sl1 and it messed up my car.when i turn the ignition off the fan keeps on running until the battery dies.

I followed Instructions as posted By Wolfman

So how do i fix it? can i still fix this?

Thanks-Irving

Low Saturn · 08-04-2009, 06:05 PM

Your link doesnt work.

If your ECTS, relay and fan are working properly, the fan should turn on by itself at the correct temperature.

But if you must hard wire it, buy a relay and do it like this:

Dime333 · 08-04-2009, 06:10 PM

Whats the ECTS?

Sorry Im a n00b

velleguy73 · 08-04-2009, 10:16 PM

Coolant Temp Sensor. It's screwed into the center of the head on the driver's side. If you replace it, open the box at the store and make sure the inside end is brass not plasticy.

DonP · 08-05-2009, 09:05 AM

See the first few posts in the How-to Library for more on the ECTS and replacement.

If you are overheating you may have a bad ECTS. The factory originals need to be replaced, they will fail. Note that overheating is when the temp gauge goes into the red zone. The fan should come on when the temp gauge passes 3/4 scale but before the red zone.

I believe that Wolfman's fan switch thread states that the fan on/off switch is independent of the ignition switch state. The fan will run with the ignition off if the switch is set for ON.

OnDaGround · 08-05-2009, 09:27 AM

Quote:

Originally Posted by DonP

I believe that Wolfman's fan switch thread states that the fan on/off switch is independent of the ignition switch state. The fan will run with the ignition off if the switch is set for ON.

This is true.

Low Saturn · 08-05-2009, 10:02 AM

Quote:

Originally Posted by DonP

The fan should come on when the temp gauge passes 3/4 scale but before the red zone.

Unless its a 1991-1994, which the OP has. The it will turn on just as the needle touches the red. This is normal.

08-04-2009, 05:58 PM	#1
Dime333 Member Join Date: Aug 2009 Location: Thorton,CO Posts: 60 Dime333's Photos 1994 SL1	Weird Cooling Fan problem Hi i tried to hook up a manual fan switch on my 94 sl1 and it messed up my car.when i turn the ignition off the fan keeps on running until the battery dies. I followed Instructions as posted By Wolfman So how do i fix it? can i still fix this? Thanks-Irving Last edited by Dime333; 08-04-2009 at 06:09 PM.

08-04-2009, 06:05 PM	#2
Low Saturn Super Member Join Date: Aug 2003 Location: San Jose, CA Posts: 15,308 Low Saturn's Photos 2007 AURA XR 2001 SC2	Re: Weird Cooling Fan problem Your link doesnt work. If your ECTS, relay and fan are working properly, the fan should turn on by itself at the correct temperature. But if you must hard wire it, buy a relay and do it like this: ... Mike -1991 Turbo SL2. 11.809 @ 116.488 mph www.differentracing.com -2001 Limited Edition SC2 (#78) -2001 Chevrolet Suburban -2007 Saturn Aura XR -2011 Rally Yellow Chevrolet Camaro 2SS RS

08-04-2009, 06:10 PM	#3
Dime333 Member Join Date: Aug 2009 Location: Thorton,CO Posts: 60 Dime333's Photos 1994 SL1	Re: Weird Cooling Fan problem Whats the ECTS? Sorry Im a n00b

08-04-2009, 10:16 PM	#4
velleguy73 Senior Member Join Date: Oct 2008 Location: Farmington MI Posts: 1,208 velleguy73's Photos 2001 SL 2002 SL	Re: Weird Cooling Fan problem Coolant Temp Sensor. It's screwed into the center of the head on the driver's side. If you replace it, open the box at the store and make sure the inside end is brass not plasticy.

08-05-2009, 09:05 AM	#5
DonP Master Member Join Date: Jun 2006 Location: VA Posts: 3,582 DonP's Photos 1995 SL2	Re: Weird Cooling Fan problem See the first few posts in the How-to Library for more on the ECTS and replacement. If you are overheating you may have a bad ECTS. The factory originals need to be replaced, they will fail. Note that overheating is when the temp gauge goes into the red zone. The fan should come on when the temp gauge passes 3/4 scale but before the red zone. I believe that Wolfman's fan switch thread states that the fan on/off switch is independent of the ignition switch state. The fan will run with the ignition off if the switch is set for ON. Last edited by DonP; 08-05-2009 at 09:14 AM.

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