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Old 10-01-2018, 08:49 AM   #15
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Old 10-01-2018, 09:47 AM   #16
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I don't see any attachments
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Old 10-02-2018, 08:38 AM   #17
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Old 10-03-2018, 07:11 PM   #18
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Look what I found in 50 pounds of manuals. One of the previous owners either modified or replaced the electric cooling fans wiring system. I havenít a clue as to what or why this was done. Can anyone venture a guess based on these hand sketches? Any thoughts will be welcome.
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Old 10-04-2018, 04:49 AM   #19
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Quote:
Originally Posted by John P View Post
Look what I found in 50 pounds of manuals. One of the previous owners either modified or replaced the electric cooling fans wiring system. I havenít a clue as to what or why this was done. Can anyone venture a guess based on these hand sketches? Any thoughts will be welcome.
Why did he do it, who knows. Basically what the PO did was to wire it so that the AC pressure switch, dash switch or engine coolant temp will turn the fans on.

In general that's pretty much what any cooling system with fans is trying to do, turn them on when the temp gets to high or when the AC system is running.

At first glance I don't see why this arrangement wouldn't work. It would be nice to know what coolant sensor was used and what temperature setting causes it's internal switch to close.

Sorry, not much help.

Brad
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Old 10-04-2018, 05:04 AM   #20
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Assuming
1 the coolant temp switch goes to ground
2 the solenoid goes somewhere logical
I also don't see why it wouldn't work

After you troubleshoot and verify what is happening, I'd recommend inspecting all the wiring and looking for bad connections. Also verify that it matches your schematic you just posted. Especially if the PO did the wiring, there could be slice-n-dice connectors gone bad or something.
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Old 10-12-2018, 12:15 PM   #21
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Thanks everyone for all the thoughts and recommendations. Not knowing if it was good or bad, I decided to just replace the fan clutch. All electrical connectors were examined and all ground leads were removed and cleaned. The AC high pressure switch and radiator temperature sensor were examined and found to be in working order. On a test ride I was not able to duplicate the original issue so I think I am good. Thanks again for the recommendations. I am a happy camper!
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Old 10-13-2018, 05:50 AM   #22
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Good stuff, aside from keeping the temps down, the fan clutch will save costly repairs to the engine and tranny. You'll hear it kick in when you go up hills etc. Don't be alarmed by the noise; it's a 'feature'. A cheap and worthwhile fix in my opinion. Happy camping. Nick
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