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Thank you for the help. It is a 63 and sounds like connecting the hoses may solve any issues?
Dave, Your 63 does not have a Comfort Control System or Thermal Vacuum Valve so you can ignore the prior replies regarding the 64 system.
That is the Water Control Valve in your diagram circled. It allows hot water to enter the heater core when in "heat" mode, and blocks hot water from entering when heater not on. You can see it in the 1963 Shop Manual on page 13-1, Fig 13-1.
Your Picture is low res and I cannot tell where the other end of the vacuum hoses originate or the color striping on them which is key to using the 1963 Cadillac Shop Manual to understand where they connect. I am also not sure if this is an AC equipped car or non-AC. That will make a big difference. You can see the vacuum line set-up for Non-AC cars in the shop manual on Page 13-2, Fig 13-3; and for AC equipped cars on page 13-18, Fig 13-16.
If you do not have a shop manual that should be your very next purchase as it will answer many of these basic questions. If you don't have a shop manual you can find repros in print and cd, and originals on eBay, Etc. I have an excellent original 1963 Shop Manual for $60 ($45 as a Chapter Member).
Started by Joe McDonald in General Discussion 2 hours ago. 0 Replies 0 Likes
Hey all,Not sure if this is the right section of the forum to post this or not. I just picked up this 1964 Coupe deVille. I'm the third owner on it and it appears to have been a Spokane Washington…Continue
Started by Logan Robb in 1963/64 Cadillac Specific Discussion yesterday. 0 Replies 0 Likes
As the Fall Festival approaches, I am finding myself curious if anyone else will be attending from the group?I am hauling my Fleetwood up. I am hoping to see lots of other 64’s!Continue
Started by Jason Edge in General Discussion. Last reply by Jason Edge Sep 1. 3 Replies 0 Likes
Started by Daniela in 1963/64 Cadillac Specific Discussion. Last reply by Doug Scarrow Aug 31. 10 Replies 0 Likes
All,I can’t believe I have to ask for help again. I really thought I was done with repairs. I did drive my 63 Eldorado a couple of times on side roads and all was good. last week I took it out bc it…Continue
Tags: overheating, transmission, NewRadiator
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?
Posted by Chase on March 21, 2024 at 5:55am 0 Comments 1 Like
Hey everyone, has anybody done a Vintage Air AC/Heat setup in their car? I want to bypass the old vacuum setup and go with a Vintage Air Gen 2 model. Before I get started, does anyone have any experience with this? (Which model to go with, do’s and dont’s, etc.) It looks pretty involved. Any and all info/pics would be greatly appreciated. Thanks!
Posted by CHRIS CARLSON on December 6, 2023 at 10:54am 0 Comments 0 Likes
Who rebuilds original AC accumulator dryers for 1964 Cadillac? I have been on Classic auto air in Tampa FL wait list for over a year , There is one on Old air products web site that looks very similar to the original # 21-4214A but states it fits 1962 Gm cars, The one recommended for a 1964 Cadillac is half the length 21-4215A What is everyone using ? I would prefer to be as original as possible. Thanks
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