Topic: AC idle solenoid
in Forum: C3 Cooling and Heating Systems
Hi folks, FNG here!
I have several old friends that told me about this forum so I thought I would check it out. I already have a problem I need some assistance with. I have a 71 small block coupe, all original with factory air. I had my AC repaired recently and was told the "idle kick up" solenoid appeared not to be working. I thought it was the original part but perhaps it is not. It has a single wire running to the forward end of it (radiator side) and a little plunger in the rear (firewall side). It has a white label with red lettering. I believe the PN is 1111444 but not really sure. I actually don’t know if it is the right part to begin with. I don't believe there are any vacuum line ports on the front of the solenoid. The RPM drops when the AC is turned on and it (the plunger) does not activate when the key is turned to the pre-start position. What is the source of power for the solenoid when the AC is activated? What is the source of power when the ignition key is turned on. I want to chase sparks and learn the troubleshooting procedures. I do have a 71 assembly manual and both GM chassis manuals. I guess I need to start reading. Any ideas or recommendations are greatly appreciated.
Thanks for the help in the past Ken!
Does anyone have a picture of the correct part or correct part number?
If required, where do the vacuum lines connect?
Where does the 12-volt wire tie into the electrical system?
Sorry about the dumb questions and thanks in advance,
Chevy dealers are all on a connected computer network and they can tell if any dealers nationwide might still have such an old part sitting on their shelves. Some larger and older dealers well might. You can get a printout of all dealers that have the art still in stock and you can call them about it.
For me, I found a dealer in the next state that had two of them. The parts manager wanted to get such dead merchandise out of his inventory and told me the solenoid had a retail of over $90...if I took both he'd sell them to me for $20 each just to get rid of them.
I bought both, installed one and sold the other on Ebay for more than they both cost me.
I'm not saying you'll have the luck I did, but it is a way of finding NLA parts that are genuine GM to boot.
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I have one of those on my LT-1. It is not for the a/c. It is an
ant-dieseling solenoid. When you start the car it is energized and
when you turn the key off it is de-energized. I have converted mine to
be an a/c stop. I tapped into the wire that energizes the a/c
compressor and ran it to the solenoid. The original wire (tan) went
into the wiring harness near the wiper motor. Mine is on a Holley carb
(LT-1). Don't know what you have.
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http://www.ncrs.org/forum/archive16.cgi?review=121689
Looks like the replacement part is D6581.