My fuse was good. I purchased a NOS blower switch hoping that is the issue. I’m struggling to get the AM/8-track out to get to the AC control and blower switch. AC cars are so much fun to work on!
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Question: without the engine running, I can hear the compressor clutch clicking on when I slide the control to A/C. Does this probably mean the blower switch is good, and the blower is the issue? Or is the switch still suspect? Thanks
If the compressor works the likely suspect is the fan itself.
Easy fix! The blower resistor wiring harness was disconnected. Now to charge the system.
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mopauly1965, depending on how much of Greeny’s a/c system you are missing, and if you want to retain the OEM R-12 refrigerant would determine cost of getting your a/c running again. Some of OEM / used parts can be sourced, and some are reproduced. Also, replacement kits are available for around $2,300 with the new style compressors and R-134 refrigerant that fit your cat. Here’s one 1969 Mercury Cougar Air Conditioning System | 69 Cougar AC Kit
All above, I just finished installing a Classic Auto Air upgrade kit to convert my non-functional factory R12 to new components using R134. It was not difficult, but on top of their kit you will need a decent set of pressure gauges and a vacuum pump to evacuate the system before charging. Compared to having a shop do it, the kit and tools will be pennies on the dollar. Given today’s technology, I would be willing to host a MS Teams meeting, or some other online session and show you how I converted my decimated factory AC to a functional system in less than a weekend. Maybe this is the future of our group where we have interactive sessions and perhaps record them for posterity?