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08-11-2003, 10:06 PM
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#1 |
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Senior Member
Join Date: Apr 2002
Location: Beaverton, OR
Posts: 1,615
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Factory Dual Electric Fan Operation Question
Most cars & trucks these days have electric fans,with some or most being dual fan setups. They typically come on at 180-190 degrees. On a dual fan setup from the factory (GM) does one fan come on or do both fans come on at the same time? On this 94
GranPrix I am using, just one fan comes on at 190 degrees and the other one never comes on. Temperature never goes beyond 195 degrees. Do I have a bad fan?
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Mitch 1978 Chevrolet Silverado C 10 454 BB, TH400 |
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08-11-2003, 10:21 PM
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#2 |
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You get what you pay for
 
Join Date: Dec 1999
Location: Cherryville, NC
Posts: 4,798
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Usually with factory dual fan setups, it will come on in stages if the temps keep going. Some only come on if the AC is on.
If it never comes on no matter what, it may be bad or it could be unhooked or something. Maybe even a switch for it is bad.
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Mike 1985 Chevy C-10 |
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08-13-2003, 04:08 PM
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#3 |
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LED King
Join Date: Jan 2003
Location: Sacramento, CA
Posts: 2,088
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Yeah I say check the A/C thing - alot of the newer cars have the second fan for A/C.
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Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32 |
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