Now that my girl has a new heater core and everything inside the dash looks good, I was wondering.....My AC is blowing cold air but noticed the Air Flow could be better. Does the Transducer control Fan Speed? Is my blower motor ready for replacement? I was also thinking of adding additional Radiator Cooling Fans to help the air flow through the condenser at idle.
Any opinions or options would be welcome.
Thanks
Comment
The transducer converts electrical signal to vacuum and controls the power servo vacuum diaphragm which controls the blend door that allows air past the heater core for heat or the ac evaporator for cooling. I would first confirm that you have the control lever in the 2nd automatic position (red arrow) which allows for max fan speed. If that does not work, there are several situations that can cause it not to blow on high (eg. bad high speed switch, open/broken wire, resistor board on power servo, etc) which are detailed in Cadillac Tims (Tim Groves) manual. His contact info is located here on our Parts Suppler Page, or you can get thru Russ.
Started by Kim K Kaiser in 1963/64 Cadillac Specific Discussion. Last reply by Linda M. Brooks on Thursday. 5 Replies 1 Like
Out of curiosity,, is the 63 64 engine capable of burning rubber off of a stop light? Not a hold the brake and rev up and release, but from a stop, to burn rubber power?I know mine wont because i…Continue
Started by Kenneth Barton in 1963/64 Cadillac Specific Discussion. Last reply by Russ Austin on Wednesday. 1 Reply 0 Likes
Hi everyone, I installed a new gas tank sender in my 63 after bench testing it and confirming ohm range on the bench.However after installing and filling it up, it only reads half full after filling…Continue
Started by Jeff Donaldson in General Discussion. Last reply by Dennis P. DiBari on Monday. 1 Reply 0 Likes
Hi,It's time to do a brake job on my Fleetwood. When I imported my car from the US to Canada I had to have my car safety inspected before I could license it in the Privince of BC. After the…Continue
Started by Michael Monson in 1963/64 Cadillac Specific Discussion. Last reply by Michael Monson on Sunday. 6 Replies 0 Likes
I'm currently rounding up parts for a heater core replacement in my 1964 Deville. I'm looking for replacement hoses that connect to the heater core itself. It's a factory a/c car and has the metal…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