OK, here we go.....
I got the book to troubleshoot the system. INDISPENSABLE to this effort.
As I do a cursory exam, I see that the AC RECIRC SOLENOID is Cracked (the WHITE one in the engine compartment coming out of the HVAC body with two vacuum hoses on it). I tried to patch it up (cracked all around the base), but it does not look like it will hold.
PLEASE TELL ME THAT REPLACING THIS PART IS NOT AS DIFFICULT AS I THINK IT IS, But I think it is a bear to do....
Norm
Comment
So after looking at what it will take to replace the Recirc vacuum solenoid, I tried something that I hope will work to seal it up (it is broken about 270 degrees around where the cover attaches to the base): I masked everything off and used "Flex Seal" rubber sealant. We'll see.
Meanwhile, I think I have narrowed down my problem to the valve body on the control unit on the left of the dash. I may try to remove it and follow the instructions in the book to re-invigorate the operation of the valve.
The heater/ AC door is not moving (vacuum supplied by control unit, not power servo) so either the vacuum solenoid on the plenum is bad or the control unit is bad-or both.
Will someone please tell me that the AC/HEATER door Vacuum solenoid is not located where I think it is: Inside the heater/ac plenum????
Thanks
Norm
Since a good deal of work is done under the dash, is it just easier to remove the dash top to be able to access everything more easily?
Thanks. I'll look for Clovis' writings. At this age I can spend more easily than I can bend, so if I have to be a contortionist to do this repair, I'll look for a pro. I have the book on Comfortron and it is pretty complete and simple to follow.
Started by Jason Edge in General Discussion on Saturday. 0 Replies 0 Likes
The day before I took over 400 pictures of Parts Car #61, the Series 62…Continue
Started by tim sparks in Wanted to Buy. Last reply by Jason Edge on Saturday. 1 Reply 0 Likes
anybody have a oil dipstick tubeContinue
Started by Jason Edge in Newsletters on Thursday. 0 Replies 0 Likes
I have uploaded 45 pictures of Denis Binette's 14K mile 1964 Coupe de Ville which is featured in…Continue
Started by Jason Edge in General Discussion. Last reply by Jason Edge Mar 11. 3 Replies 0 Likes
Spending 3 to 4 hours a day with physical therapy with my knee and leg from the Jan 31 right knee MCL tear and ACL rupture has left me with limited time for car or other things but making progress on…Continue
Posted by SK on June 2, 2025 at 2:20pm 2 Comments 0 Likes
Could someone post front and back photos of the 1963 right-hand kick panel with A/C?
My car didn’t come with the original kick panels, so it's a bit of a mystery to me how I should cut the backing board and carpet to fit around the A/C.
Many thanks,
-Samu
Posted by Ray Schick on August 22, 2024 at 6:25pm 2 Comments 0 Likes
I bought this seat material thinking that it’s…
Posted by Dave Fehrle on March 23, 2024 at 3:23pm 8 Comments 1 Like
While checking my Carter carb with engine running, I took the air cleaner off and there was a very loud hissing sound of air. I placed a piece of paper over the carb and it didn’t move up or down, is this normal?
© 2026 Created by Jason Edge.
Powered by
You need to be a member of 63/64 Cadillac Website to add comments!
Join 63/64 Cadillac Website