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Hooking up my replacement A/C system

BBCFORD on Sat August 01, 2009 2:01 AM User is offline

After several years away from this discussion board, I have returned to complete tho project I started. It involves putting a functional A/C system back on my street machine 1980 Ford Thunderbird. To make a long story real short. Someone gutted all the A/C parts of the car several years back before I got the car.

I accumulated from ACKIT.COM (with lots of tech help from "Chick") much of what I needed to replace.

I just installed the new Seltec A/C compressor, evaporator, condenser, drier, etc. After a good deal of effort and fabrication, I believe that I managed to locate the hot lead from the O.E.M. wiring harness and tied it into the compressor.

Now...I'm going to have to figure out what fittings and lines I now need to run a custom hose system.

My first question is, how do I test (to ensure electrically) it will even function...since there are no hoses hooked up? Everything is plugged off and capped to keep dirt out.

Can I turn my A/C switch on very very briefly...to the run position on the dash to see if the clutch kicks in or is this a big no-no?

Chick on Sat August 01, 2009 7:20 AM User is offlineView users profile

Use a test light.. Fist at the accumulator cycling switch, (see if 12v gets there when you turn it on) then at the compressor plug, (you can jump the cycling switch to make sure the 12v leaves the switch and goes to the compressor when you turn it on and off) no need to run the compressor until everything is hooked up...Hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Prospeeder on Sat August 01, 2009 4:54 PM User is offlineView users profile

Definatly agree with the test light, the pressure cycling switch wouldnt allow the clutch to kick on with no refrigerant, so you need to make sure you jumper the switch.

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1990 Pontiac Turbo Grand Prix
1990 Pontiac 6000 LE V6
Both have R12 A/C

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