my 64 Deville is early and I believe a 5 port A Module

I'm seeking guidance on the following

If in restoring the AC climate Control - What are the components other than the module that need to be 

changed other than the module itself and the first vacuum hose that attaches to the module?

Dave Lee

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Dave, You will want a 1964 Cadillac Shop Manual and Tim Groves 1964 Cadillac Troubleshooting Manual as you go through the 64 AC/Heat Comfort Control system.

You can get shop manuals on eBay and elsewhere in original print, reprint, and CD/PDF file formats. I usually have extras to sell but other than one coming apart at the seams I am out ... so check eBay.

Here is Tim Groves' contact info:

Cadillac Tim (Tim Groves) 
1964-1968 Cadillacs, ac-heat, LOTS OF PARTS - CHECK OUT PO Box 546, Iva SC 29655
ph: 1-864-348-7732 (correct as of Sept 8, 2022), email: tagroves@wctel.net

David, the 64 climate control system is the first year design, and a challenge to repair.  I do carry the troubleshooting book by Tim Groves. The book  is 45.00 plus shipping.

There is a circuit board in the climate control head that will probably need to be repaired, a power servo that will most likely need to be repaired. 

If you want my advise, just replace the entire system with a 63 Cadillac system. It bolts right into place and will heat and cool the car just fine with a whole lot less of a headache. 

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