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OEM electric fan question

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Old Jul 29, 2005 | 10:01 AM
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Hef
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From: webster ny
Default OEM electric fan question

I happened to notice at the end of my drive yesterday, my electric fan was not on, with the engine running. It was about 80 deg outside and I was driving with the AC off. (I had been driving about 30 miles) Does anyone know about what temp/conditions this fan should turn on?
79 L-82
I assume the temp sense is monitored somehow, and at a certain temp (voltage) the fan is enabled by a switch.
Thanks,
Hef
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Old Jul 29, 2005 | 10:10 AM
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big_G
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From: Austin Texas
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That fan is an auxiliary fan, it will only come on at around 230-240 deg. The switch for it is in the right cylinder head. (assuming it is the factory set-up)

Last edited by big_G; Jul 29, 2005 at 10:26 AM.
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Old Jul 29, 2005 | 10:13 AM
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Ganey
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From: CORVETTE 77 385 C.I. TEXAS
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Look for the sensor in pass. side head between cyl. plugs 6 & 8. On at 238, so you would not expect it to be on under the conditions stated.
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Old Jul 29, 2005 | 03:12 PM
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Hef
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From: webster ny
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Originally Posted by big_G
That fan is an auxiliary fan, it will only come on at around 230-240 deg. The switch for it is in the right cylinder head. (assuming it is the factory set-up)
Oh ok then I will have to assume for now it works?

That seems kind of hot for having the aux fan motor turn on. I wonder why the temp switch was not set up for say 220?
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