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Cooling Fan control

Old 01-03-2019, 01:09 PM
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Cooling Fan control

i read a post that stock fan controller turns on @ 220 degrees for pollution control. There was mention of after market switches set for 180 or 185 degrees. Where can I find manufacturer / model info?

thanks
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Old 01-03-2019, 01:24 PM
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Re: Cooling Fan control

Post #20 the sw555 is a good choice not to your specs though
https://www.thirdgen.org/forums/cool...an-switch.html
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Old 01-03-2019, 01:27 PM
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Re: Cooling Fan control

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Old 01-03-2019, 01:28 PM
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Re: Cooling Fan control

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Old 01-03-2019, 01:53 PM
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Re: Cooling Fan control

This is what I used for my trans cooler
https://www.ebay.com/itm/4-PACK-180F...gQje:rk:1:pf:0

4x Pack of them for $30. Simply wire in a relay and go.
They seem reliable as long as you don't pour salty water on the plugs (don't ask how I know)
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Old 01-03-2019, 05:53 PM
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Re: Cooling Fan control

Awesome. Thank you
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Old 01-05-2019, 09:07 AM
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Re: Cooling Fan control

Ordered it up
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Old 01-22-2019, 07:19 AM
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Re: Cooling Fan control

When you get tired of messing with the switch, try a Dakota Digital PAC-2750 fan controller. I tried no less than half a dozen different brand fan switches on my wife's 1987 Camaro. None of them would turn the fans on / off at consistent temperatures. I had a PAC-2750 on my 1985 Camaro and finally put one on hers too. No more issues and it has worked perfectly ever since.
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Old 01-22-2019, 12:09 PM
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Re: Cooling Fan control

I used a SW555 been good for 7+ years comes on right at 210 per my aftermarket temp gauge and 211 per my IR gun.
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Old 02-03-2019, 01:49 PM
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Re: Cooling Fan control

I instantly new fan control sensor. Drivers side under exhaust manifold. Single wire. Temp gauge stopped working? I thought temp gauge worked of 2 wire sensor on intake next to thermostat housing. I am not one for coincidences. Any ideas?
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Old 02-03-2019, 02:02 PM
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Re: Cooling Fan control

Not really a coincidence... see my signature.

Temp gauge sending unit (not really a "sensor") is between the #1 & #3 spark plugs. Sounds like you disabled it by putting your other thing there.

Factory fan switch location is the same hole in the other head; between #6 & #8 spark plugs. I'd suggest putting the temp gauge sending unit back and hooking its wire (dk grn) back up; and putting your fan control thing over on the other side.

The 2-wire sensor (this one really IS a "sensor") is for the ECM. Not related to gauge function.
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Old 02-03-2019, 02:16 PM
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Re: Cooling Fan control

I meant I installed the new fan control sensor
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Old 02-03-2019, 02:18 PM
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Re: Cooling Fan control

Thank you. I will put it back the way I had it
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