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Author
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Topic: Electric Fan won't come on.
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Stang28965
Gearhead Posts: 551
From: Webster New York USA
Registered: Mar 2001
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posted 06-14-2006 01:46 PM
 
My engine gets up past 190deg and the fan will not come on. I have the temp probe on the top of the manifold taking the temp from the top of the radiator. Is this a good or bad place to have it?Please help me.
-Jeff
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my65
Journeyman Posts: 99
From: Dearborn
Registered: May 2004
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posted 06-14-2006 02:15 PM
I didn't understand your placement of the probe. Mine feeds into the top radiator hose and goes into the radiator. The best place is to feed it into the intake just like the temp sender. The box the probe is attached to has a "+" and "-" on it. The + is for higher temp turn on, - for lower. Make sure you have the box wired correctly, it can be confusing. Good luck.
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n2oMike
Gearhead Posts: 3058
From: Spencer, WV
Registered: Jan 2001
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posted 06-16-2006 10:46 AM
The Derale switch that screws into the intake is best, but the one like you've got can be made to work ok. Some thermal grease, like what is used on computer heat sinks can help. Buy some at Radio Shack.Of course, you should also check the main wiring to the fan, etc, especially if it was working before.... before you automatically blame the switch. ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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Stang28965
Gearhead Posts: 551
From: Webster New York USA
Registered: Mar 2001
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posted 06-18-2006 09:06 PM
This is a new install and I do have the Derale Switch, Turns out it was cracked.
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