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

Views: 91

Comment

You need to be a member of 63/64 Cadillac Website to add comments!

Join 63/64 Cadillac Website

Comment by Tony and Ginny 429 on August 25, 2018 at 10:15pm
Did you test the valve to see if it hold vacuum now
You can just suck on it to see if it holds or leaks air or use a vacuum tool
If the valves diaphram is good and holds vacuum an external repair may work

If the valve leaks the heater motor box will have to be removed to replace the valve
I will be doing that repair myself in a short time

Enjoy
Comment by Norman Silverman on August 25, 2018 at 9:31pm

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

Comment by Norman Silverman on July 23, 2018 at 11:56pm

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?

Comment by Tony and Ginny 429 on July 23, 2018 at 10:13pm
Comfort control repair -- will pull up a lot of info on the subject and Clovis's thread

Enjoy
Comment by Tony and Ginny 429 on July 23, 2018 at 10:07pm
A good deal of work is done under the dash in very strange poitions that use muscles you forgot you had -- but real nice having that system up and running --to help maximise the enjoyment of your exotic Claasic Antique Cadillac
Removing the front seat and pushing it back does help me get in there

I have aquired all the parts and will be pulling my entire system out replacing all parts required over the next two - three months
A big project for me at my age but looking forward to having the system working correctly

Clovis - Thanks for posting and sharing your comfort control info with the group
You have inspired me to -- Jump Right in - and Get Her Done ! ( Soon )

Enjoy
Comment by Norman Silverman on July 23, 2018 at 9:49pm

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. 

Comment by Tony and Ginny 429 on July 23, 2018 at 9:37pm
Mostly that part needs to hold vacuum ( a vacuum valve )
The biggest problem is once you get into the comfort control system in most cases you will need to be spending 800-1000 dollars --on parts to be replaced --doing the job yourself -with some understanding what must be done first and the skills to get that done
Yes --bringing this system back to life with very old parts to make it reliable again will take some doing for the mechanically inclined among us

A genteman named --Clovis --has written a thread on this site that is extremely helpful in getting an understanding of what must be done the costs involved ( where to located the parts needed ) and may give you the encouragement you just need to attack the task


There is a -Search engine -on the top of the home page to access the library here

Enjoy

Photos

  • Add Photos
  • View All

Forum

Extension Housing Hydramatic

Started by M123 in 1963/64 Cadillac Specific Discussion. Last reply by M123 2 hours ago. 1 Reply

Hi.Can you on a 64 remove the extension housing with the gearbox still in the car? The car have the Hydramatic.Did work on the car last night and did feel a very large play on the outgoing axle,…Continue

1965 Cadillac DeVille

Started by DanielAndrew in For Sale yesterday. 0 Replies

1965 Cadillac DeVille On Ebayhttps://ebay.to/2W6axyTContinue

Current 1963/64 Cadillac Listings on eBay

Started by Jason Edge in For Sale. Last reply by Kurt yesterday. 2 Replies

To see all 1963/64 Cadillacs Listed on eBay in the USA…Continue

Tags: ebay

Trun signal swit

Started by Jeff S. in Wanted to Buy. Last reply by Charles Fares yesterday. 2 Replies

Hello all!Looking to either repair my existing turn signal switch or source a new one. Any suggestions?Thank you ub advance!Continue

Blog Posts

Cadillac Returns to its Roots Under New Leadership

Posted by Jeff Kinzler on May 1, 2019 at 12:30am 3 Comments

Cadillac’s new boss says they should stop trying to build BMWs and go back to building Cadillacs again.

What do you think? 

https://carbuzz.com/news/cadillac-finally-admits-what-everyone-knew-for-years

Radiator And Shrouds

Posted by Dominic Salemi on April 24, 2019 at 3:36pm 1 Comment

Hello

Anyone have a decent radiator and shrouds and hardware for a 1964 Cadillac deville. I have an alum. radiator and I'm deciding on to fix it or back to the original one. If I fix it I won't need parts.

Thanks

64 Recirc/Fresh Air Door Actuator replaced; FROM THE INSIDE.

Posted by Norman Silverman on February 4, 2019 at 11:21pm 8 Comments

I am happy to report that I have successfully replaced the Fresh Air/Recirc door actuator that is located on the blower box-and have done so without having to remove the blower box. I did it by taking out the glove box and attacking it from the back.  It took several days, LOTS of patience and some band-aids, but it is done. THE most difficult part -BY FAR- is to remove and then replace the screw that sits on the actuator arm, connecting it to the fresh…

Continue

Videos

  • Add Videos
  • View All

© 2019   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service