(electrical) Radiator fans
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Pro
Joined: Jun 2001
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(electrical) Radiator fans
I'm planning my warm weather activities and had some questions on the cooling fans. First I have 2 electric fans. When the coolant gets hot from sitting in traffic the outboard fan turns on. Wouldn't the inboard fan (pulling air through) be more efficient :confused:
I have the block sensor that turns on the fan i think at 200 and off around 185 or so.
Is it possible to switch the wiring somehow to have the inboard fan turn on instead? I have ordered a kit from MAD that controls the fans on/off with a toggle switch. I would like that toggle switch to control the on/off of the outboard fan. So basically 1 fan is normal and the other fan is manually controlled.
As long as my alternator can handle it (with both fans running) i should be pretty :cool: in long traffic wait times.
I have the block sensor that turns on the fan i think at 200 and off around 185 or so.
Is it possible to switch the wiring somehow to have the inboard fan turn on instead? I have ordered a kit from MAD that controls the fans on/off with a toggle switch. I would like that toggle switch to control the on/off of the outboard fan. So basically 1 fan is normal and the other fan is manually controlled.
As long as my alternator can handle it (with both fans running) i should be pretty :cool: in long traffic wait times.
Pro
Joined: Oct 2002
Posts: 515
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From: Everett WA
Re: (electrical) Radiator fans (Iroc)
how you want it setup, is how mine is now. dont ask how its done, cuz i didnt make it that way. :)
i could try looking around, but unless i knew what i was looking for i probably wouldnt find much...
i could try looking around, but unless i knew what i was looking for i probably wouldnt find much...
Thread Starter
Pro
Joined: Jun 2001
Posts: 648
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Re: (electrical) Radiator fans (AGENT 86)
I thought each fan came on at different temps so I figured it didn't get hot enough for the inboard fan to come on..
How would I check the fan? Do I need to check the relay if it has one?
How would I check the fan? Do I need to check the relay if it has one?
Team Owner
Joined: Mar 2001
Posts: 54,124
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From: Cincinnati, Oh USA
Re: (electrical) Radiator fans (Iroc)
The main fan comes on at 228 F and the auxilliary fan comes on at 238 F. If you jump the grn/wh wire on the main fan relay to ground, the relay will close (you should hear it click) and the main fan should come on. There should be 12v on the red wire on the relay all the time and 12v on the blk/rd wire when the relay closes. You can test the fan by unplugging it and jumping 12v to the fan socket. Fan motors usually stop running because the brushes wear out. I replaced my main fan motor on my 87 last year due to worn out brushes.
