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Old 06-02-2005, 10:21 PM   #1
1972ChevyCheyenne
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Join Date: Sep 2004
Location: Teeswater, Ontario, Canada
Posts: 173
A/C Wiring diagram

I am trying to figure out my fan switch on my 72 for the blower fan. I need a diagram for the A/C wiring. I looked in the assembly anual but didn't see anything. Currently I have 2 wires going out in front of the cab. 1 dark green with must go to the compressor and a 12-14 gauge purple which I think goes to the blower fan. The part in the cab is confusing me though. On Heater fan switch and four wires do to in i think the brown is the power feed and the other 3 (blue, yellow, orange) go away from it. Where? Also what is the purpose of the resistor and the micro switchon the heater box? I also have about a 14 gauge orange wire that comes back toward the heater switch that I am unsure of its purpose. A wiring diagram would be great or a location in the assembly manual would help. Any other info would help too. Thank

Jamie
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Old 06-03-2005, 08:22 AM   #2
JimKshortstep4x4
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Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Here you go,

Jim
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