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Old 02-02-2012, 09:44 PM   #5
6772owner
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Join Date: Jan 2008
Location: Colorado
Posts: 1,193
Re: late model fans on a 2000

Nelson Perfomance sells a harness to allow you to use GM factory (LS1 or truck fans) or aftermarket fans and control them from the PCM. As stated above you have to the feature turned on in the PCm, but then the fans will operate correctly with temp and A/C. The fans running all the time defeats the purpose of having e-fans in my opinion, you are not getting the faster warm ups and they are dragging down the alternator/batt all the time... just my .02
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