what is the vacuum canister for that is behind the drivers front fender?

After removing my fender I see its got a hole in the top but nothing is hooked to it and no line is laying there.

Any help would be great. I finally bought my dream car and starting the process of collecting parts and information.


Views: 166

Reply to This

Replies to This Discussion

Power door locks. 

where does the hose run from to it? its just the can sitting there.

The input vacuum goes over to the intake vacuum nipple and the out put goes thru the firewall to provide vacuum for vacuum power door locks and/or vacuum power trunk. See below.

... and/or power deck lid.

What that cooler bolted to his fender in this picture.

I have this in a box it was removed from the car. Maybe I should have this hooked up?

It is a power steering pump fluid cooler used on 1964 Cadillacs with AC.  See below for details.

Power steering fluid cooler.

You should have the power steering steering cooler hooked up in a our year  stock Cadillacs 

Always a good idea to be keeping fluids cool to protect our steering system 

It gets HOT under that Hood 

No idea why someone would remove the cooler and not replace it 


Yeah I still have it. Someone cut the lines and just ran the powersteering lines right back to the gear box.

How do I hook it back in? Is there diagram in the service manual on how it should look?


I know the 64 has the steering cooler on AC  cars but not sure about a 63 


Mines 64 and didn't have A/C.

So if I didn't have ac from the factory I wouldn't of had one of these coolers? It was in a box of parts that cam with the car when I bought it.

Just noticed I have no vacuum cannisters on this car as well. But thats for another discussion. Somebody really went to town under this car. 

- 1964 Cadillacs with power vacuum door locks or power vacuum trunk/deck lid have a large vacuum tank under the left driver side fender. I
- 1964 Cadillacs with AC have a smaller vacuum canister in the center of the firewall for the comfort control system. A non-AC care would not have this vacuum canister.
- So, a 1964 Cadillac without AC and without power vacuum door locks or power trunk/deck lid will not have any vacuum canister.



  • Add Photos
  • View All


Chapter Member? Got a 63 or 64 Cadillac for Sale? Let's Run it in the Newsletter!

Started by Jason Edge in For Sale. Last reply by Jason Edge 6 hours ago. 4 Replies

One of the new features of recent newsletters is a Member Classified Cars for Sale section.…Continue

vacuum canister

Started by Walt Timmerman in General Discussion. Last reply by Rob Shatsnider 12 hours ago. 15 Replies

what is the vacuum canister for that is behind the drivers front fender?After removing my fender I see its got a hole in the top but nothing is hooked to it and no line is laying there.Any help would…Continue

New Batch of Embroidered Iron-On 1963/64 Cadillac Chapter Patches - $4 each

Started by Jason Edge in Chapter Discussion. Last reply by mark zimmerman 17 hours ago. 10 Replies

As noted in our August 1963/64 Cadillac Chapter Newsletter:Around 6 years…Continue

Tags: Available, Patches, Chapter, Cadillac, 1963/64

63 coupedebille fuel pump issues

Started by Daniel Grande in 1963/64 Cadillac Specific Discussion. Last reply by Daniel Grande yesterday. 9 Replies

I have a 63 cadillac and I took it to a mechanic for a motor tune up long story short the fuel pump gave out and hes tried twice to order it and he says it didnt fit the original pump is smaller on…Continue

Blog Posts

New vehicle in the club

Posted by Patrick Westphal on June 17, 2021 at 4:00pm 1 Comment

I was successful in getting a vehicle from the New York contact I talked about at the last club meeting. I am still trying to figure out how to post a picture of the vehicle that is tied with this comment so if you see a random picture of a black convertible in a yard, that's me haha.  …


Torque converter grab when idling in Drive

Posted by Cliff Johnston on June 14, 2021 at 8:47pm 2 Comments

Hi Everyone, been quite a while since i have been on here.

I have had an issue with the idle on my 64 Coupe Deville ever since i have had it.

With the Idle set high enough that it is smooth, but still a nice idle, the RPM seems only slightly too high for the stall of the Torque Converter. And therefore it tends to sit there and grab and lunge a bit. So until now, i have been putting the car in Neutral at the lights to stop this happening.

I've had the car dyno tuned and…


Can you help? Driveshaft Question....

Posted by Chris on May 30, 2021 at 8:55am 1 Comment


Newbie to the group here - we have already found tons of invaluable information on the board, so thanks! We are restoring a 1963 Series 62 Convertible. We are wondering if anyone knows of a source to buy the propellor yoke flange (that bolts to the pinion flange) for the driveshaft? One of our ears partially broke off. Not sure if we can buy just the yoke flange as an aftermarket part, or if it has to be rebuilt by a welder/fab guy? Maybe a salvage yard for a source? Again, any…


Thank you Kurt re: VIN location

Posted by Robert Pellow on April 19, 2021 at 1:07pm 0 Comments

I just wanted to say a thank you to Kurt for steering me to the tech tips page on V.I.N. locations.  Excellent information.  Thanks a bundle.

Robert Pellow


  • Add Videos
  • View All

© 2021   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service