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Old 12-01-2020, 01:44 PM   #1
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Join Date: Jul 2017
Location: FL Born, UT Living
Posts: 135
90 OBS LS Swapped A/C Hook Up

So there seem to be a lot of information on this matter with regards to electric fans but not so much for the mechanical fan.

I just installed a 5.3/4l60e in my 90 Cheyenne and I'm currently in the process of converting the factory harnesses.

On the OBS harness, there is a green wire that runs from the original A/C compressor connector and is spliced into the green wire for the switch on the a/c accumulator.

Would simply just running that green wire to the green/white wire from the LS wire harness Red 17 be sufficient?
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