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Old 01-13-2020, 12:37 PM   #7
ls1nova71
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Join Date: Dec 2009
Location: Independence Mo
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Re: 3 Fan Relay + VA - Diagram

Quote:
Originally Posted by TA_C10 View Post
I wonder if the A/C is running that I would ever need the low speed trigger from trinary. Chances are the engine already running hot enough low speed is triggered.
You most likely never would, since in the summer when the AC is generally used, the engine will already be warm enough that the low fan will already be on, with the exception of when you first start it. I've wired several swaps with only the high triggered by the trinary switch and it has worked fine for well over 100k miles on them. That said, it wouldn't hurt to wire both of them up, but just not really a necessity.
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