Ac swap question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ls1nova71 · 03-30-2020, 05:50 AM

Yes, that would be how its wired. However, it will need a relay, does your harness have that? Also, it generally only works on older engines. What year engine/PCM are you working with?

**chev-obsession** · 03-30-2020, 12:44 PM

Quote:

Originally Posted by ls1nova71

Yes, that would be how its wired. However, it will need a relay, does your harness have that? Also, it generally only works on older engines. What year engine/PCM are you working with?

Yes, the harness has a relay for the AC system. As far as the year... It's an '05 from a tahoe, its the blue/green PCM. The company who did the work said they made the PCM think it is an express van since they are behind the times from the trucks/suv's and that it should work the ac system through the PCM.

03-30-2020, 05:50 AM	#1
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: Ac swap question Yes, that would be how its wired. However, it will need a relay, does your harness have that? Also, it generally only works on older engines. What year engine/PCM are you working with? __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html



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