electric fan??

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Jul 1, 2010 | 08:03 PM

kito1989

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Joined: Jun 2010

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From: westerly RI

electric fan??

on a 1989 why does my fan go on right away, i have replaced the coolant temp sensor(under throttle body)?? fan runs all the time.

Jul 1, 2010 | 08:10 PM

BADDUCK

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From: One day you're a Comet...the next day you're dust... Arkansas

Does it do it with the AC turned completely off?

Jul 1, 2010 | 08:16 PM

pmihaltian

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Joined: Dec 2001

Posts: 3,817

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From: Charlotte NC

Main fan should go on at 224 degrees and off at 212. But, as Duck suggested, when your AC is on MAX or your operating temp is over 220 with the AC on, your main fan should run. If this is not the case, you might need a new fan relay.

http://www.ecklers.com/corvette-engi...1988-1994.html

Last edited by pmihaltian; Jul 1, 2010 at 08:18 PM.

Jul 2, 2010 | 07:28 AM

kito1989

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From: westerly RI

ok, that helps alot, i just removed the complete ac system, but the wires are still there, ill pull the fuse for the ac to see if that works.

Jul 2, 2010 | 11:04 AM

rodj

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From: Australia

Quote:

Originally Posted by kito1989

ill pull the fuse for the ac to see if that works.

Won't fix it.
You have to join together the two wires that went to the pressure switch on A/c hard line .
If switch is open ( or wiring disconnected ) computer will think A/c is running and turn on fan