I probably currently have a similar problem like Sam G in this post:
https://6364cadillac.ning.com/forum/topics/comfort-control-temperat...
... but unfortunately in the moment there seems to be a little issue, adding a reply on this discussion.

I tested all the vacuum and resistance, ordered a new used transducer from Russ Austin which helped a bit, but not finally. When I'm driving everything is working perfectly. When the engine is in idle at a stop light etc. the AC switches to warm. Quite uncomfortable on a hot summer day. What I didn't tested before was the voltage from the alternator and/or voltage regulator. If the engine drops down to under 500 rpm the voltage drops from 14 to 13 Volts. And then the voltage to the transducer of course even get 1 Volt less and switches to warm.
In Tims book he doesn't write anything about it.

I don't think it's normal, right? So do I have to buy another voltage regulator? Or do I have another problem? Perhaps the alternator is not good anymore? It seems to be the original one from 1964.

Views: 28

Reply to This

Replies to This Discussion

a one volt difference at the battery shouldn't create a one volt drop at the transducer, the control panel circuit should compensate for voltage fluctuations.  My 66 drops to 12.7v with the AC and lights on but the climate control doesn't change temperature with the same circuit board used as the 64.  


RSS

Photos

  • Add Photos
  • View All

Forum

FUEL GAGE

Started by STEPHEN HORWATH in General Discussion. Last reply by Tony and Ginny 429 9 hours ago. 7 Replies

Hi just wondering if anyone else had a problem with their fuel gauge going up to full when key is turned to the on position or when the car is running.  it goes back to empty when key is in the off…Continue

Current 1963/64 Cadillac Listings on eBay

Started by Jason Edge in For Sale. Last reply by Jason Edge 22 hours ago. 0 Replies

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

Tags: ebay

Front Window Motor Installation Help Needed

Started by Roy in 1963/64 Cadillac Specific Discussion. Last reply by Tony and Ginny 429 yesterday. 9 Replies

I have a bad window motor in the passenger side door.  I have removed the door panel and am at a complete loss as to where to start and what to do from here.  Does anyone have any step by step…Continue

Intake manifold leak

Started by Joe DiIaconi in 1963/64 Cadillac Specific Discussion. Last reply by Roland Moser yesterday. 35 Replies

Anyone install better quality intake manifold gaskets?

Blog Posts

Hood Insulation

Posted by Dominic Salemi on July 3, 2019 at 9:15pm 2 Comments

Can anyone give me some information on what to use to secure my hood insulation to the hood.

Thanks

Dominic

64 Hood Hinge Color?

Posted by Bob Schles on June 27, 2019 at 4:46pm 2 Comments

Can someone tell me what color the hood hinges should be? I've seen both silver and gold cadmium plating colors on the cars. Thanks

Rear Side Window Stainless Sill Removal

Posted by Lee Martin on June 24, 2019 at 3:07pm 2 Comments

I'm looking to replace a piece of the stainless trim that sits on the outside of the car like a sill outside the rear passenger side window.  I can just barely see one screw at one end but does the door panel and/or window need to come out to access this?  If anyone has done this I'd like to learn what is involved.  Here's a photo of the piece I'm talking about:…

Continue

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

Videos

  • Add Videos
  • View All

© 2019   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service