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Car Forum / Chevrolet / Chevrolet Corvette / April 20061972 with A/C - Where is the A/C Compressor power connected to the wiring harness??
I'm working on the A/C system on a recently purchased 1972 Coupe. The power connector 12V is connected to the fuse - the other wire from the fuse appears to have been cut. There are 2 cut wires out of the harness but neither has 12V when calling for cooling. It's possible that something is disconnected in the dashboard but I think I just haven't found the right wire. To simplify the question - the A/C fuse has 2 wires - one goes to the A/C compressor, where does the other one go? Any help will be a great time saver. - Thanks John G. Somers Point, NJ Where is the fuse in question? Is it under the dash in the fuse block, or is it the "thermal limit fuse" in the underhood harness near the compressor? What color are the wires? Joe, '72 coupe > I'm working on the A/C system on a recently purchased 1972 Coupe. The > power connector 12V is connected to the fuse - the other wire from the [quoted text clipped - 10 lines] > John G. > Somers Point, NJ > Where is the fuse in question? > Is it under the dash in the fuse block, or is it the [quoted text clipped - 3 lines] > > Joe, '72 coupe a shop manual would help ya. google is your friend. http://tinyurl.com/fvsao no pun intended -- "Key" Hi Joe - Thanks for the reply, it's the fuse under the hood, the wire from the fuse to the compressor is green. The wire from the fuse going nowhere looks like it is brown or black. JG How so? > How so? For an accurate wiring diagram. It shows if there are 'high pressure' and 'pressure cycling switches' in the compressor clutch circuit and whether they are on the hot side or ground side of the clutch. A number of '70s GM V-8s used the A/C compressor to stop run-on when the ignition switch was turned off. Shop Manual would help with that. The Clymer diagrams for the C3 don't depict A/C wiring before the 1980 car.  Signature…PJ ’89 HookerCar, ’02 E-blu 6-spd Coupe >> How so? >> [quoted text clipped - 9 lines] > The Clymer diagrams for the C3 don't depict A/C wiring before the > 1980 car. Now there is a tidbit I never heard before, but I never had air until '86, still don't like it. SignatureNever to old to learn, Dad 05 C6 Silver/Red 6spd Z51 72 Shark Black/Black/4spd You never did the paper clip trick on the compressor clutch in the old days???? >Now there is a tidbit I never heard before, but I never had air until >'86, still don't like it. > > SignatureRic Seyler Online Racing: RicSeyler GPL Handicap 6.35 ricseyler@SPAMgulf.net http://www.pcola.gulf.net/~ricseyler remove –SPAM- from email address -------------------------------------- "Homer no function beer well without." - H.J. Simpson Hi Joe - Thanks for the reply, it's the fuse under the hood, the wire from the fuse to the compressor is green. The wire from the fuse going nowhere looks like it is brown or black. JG Sorry if this appears twice - google does not seem to be sticking my reply to the correct post. - JG I was right, a wire was disconnected in the console. The wire I was looking for (green) was there but did not go "on" when cooling was called for because the plug was off the heat/ac control. John G. > I'm working on the A/C system on a recently purchased 1972 Coupe. The > power connector 12V is connected to the fuse - the other wire from the [quoted text clipped - 10 lines] > John G. > Somers Point, NJ |
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