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Author Topic: Hose under driving wheel, sucking air.  (Read 929 times)

Offline ducbot

  • Posts: 19
  • Name: Duc Chau
Hose under driving wheel, sucking air.
« on: December 12, 2021, 03:08:25 PM »
Appears to be vacuuming/sucking air.

Should it be connected somewhere?

https://youtube.com/shorts/jIV2e54BoeY

Offline Scot Minesinger

  • Posts: 6004
Re: Hose under driving wheel, sucking air.
« Reply #1 on: December 12, 2021, 03:12:27 PM »
It is probably your vacuum source in dash, which may release the e-brake.  Could be cruise brake switch?  Anyway - please post year and model.  Then you can really get some help on this forum.
Fairfax Station, VA  22039 (Washington DC Sub)
1970 Cadillac DeVille Convertible
1970 Cadillac Sedan DeVille
1970 four door Convertible w/Cadillac Warranty

Offline The Tassie Devil(le)

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  • Posts: 12395
  • CLC Number: 18992
  • Name: Bruce Reynolds
Re: Hose under driving wheel, sucking air.
« Reply #2 on: December 12, 2021, 05:09:21 PM »
Couldn't open the Video clip.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Offline ducbot

  • Posts: 19
  • Name: Duc Chau
Re: Hose under driving wheel, sucking air.
« Reply #3 on: December 12, 2021, 05:15:06 PM »
It's a 1960 series 62.

Video is linked of video hosted on YouTube.

Offline The Tassie Devil(le)

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  • Posts: 12395
  • CLC Number: 18992
  • Name: Bruce Reynolds
Re: Hose under driving wheel, sucking air.
« Reply #4 on: December 12, 2021, 05:30:44 PM »
Still cannot open it, and I surely won't be subscribing to it just to see it.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Offline The Tassie Devil(le)

  • Administrator
  • Posts: 12395
  • CLC Number: 18992
  • Name: Bruce Reynolds
Re: Hose under driving wheel, sucking air.
« Reply #5 on: December 12, 2021, 05:35:58 PM »
I would be looking up under the dash at the steering column and seeing if there is two hoses attached to the NSS.

One feeds vacuum to the switch, and the other, connects the switch to the Vacuum Diaphragm at the Park Brake.

If the suction is the all the time, then it is the engine to switch hose, and if only heard when in gear, then it is off at the Diaphragm.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Offline Scot Minesinger

  • Posts: 6004
Re: Hose under driving wheel, sucking air.
« Reply #6 on: December 12, 2021, 05:37:45 PM »
To all who cannot see the video, it will not much, it will verify what the poster wrote is true.  It is likely the vacuum power source for an accessory, like trunk release, power door locks, or etc.

Are there any options that do not work that did before the leak?  This old of a hose may have just lost some spring in the rubber, and fallen off.  Cut off about 1/4 inch off the end that is loose and look for the connector it fell off of and re-attach it. 
Fairfax Station, VA  22039 (Washington DC Sub)
1970 Cadillac DeVille Convertible
1970 Cadillac Sedan DeVille
1970 four door Convertible w/Cadillac Warranty

Offline ducbot

  • Posts: 19
  • Name: Duc Chau
Re: Hose under driving wheel, sucking air.
« Reply #7 on: December 12, 2021, 07:49:18 PM »
Thanks for the suggestions. I'll look around. Recently got the car and had it at the mechanic for about months. Just got it back so now poking around and exploring the car 😎

Offline Poncholover

  • Posts: 220
  • Name: D Snodgrass
Re: Hose under driving wheel, sucking air.
« Reply #8 on: December 12, 2021, 08:35:40 PM »
Hey Tassie, I have wondered what the Vac hoses on the NSS are for. They go to the parking brake? And do what?
Flattie Caddy

Offline The Tassie Devil(le)

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  • Posts: 12395
  • CLC Number: 18992
  • Name: Bruce Reynolds
Re: Hose under driving wheel, sucking air.
« Reply #9 on: December 12, 2021, 09:46:56 PM »
When the gear lever is in park, and Neutral I think, the vacuum is stopped from going anywhere, but in Reverse and any of the Drive positions, the port is opened, and the vacuum continues to the Parking Brake Disengagement Diaphragm.

This then releases the parking brake pawl, releasing the parking brake automatically.   It started in the 1960 models, and continued on ever since.

Bruce.  >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Offline cadillacmike68

  • Posts: 3438
  • Still crusin'
  • CLC Number: 15823
  • Name: M Santos
Re: Hose under driving wheel, sucking air.
« Reply #10 on: December 13, 2021, 09:56:54 AM »
When the gear lever is in park, and Neutral I think, the vacuum is stopped from going anywhere, but in Reverse and any of the Drive positions, the port is opened, and the vacuum continues to the Parking Brake Disengagement Diaphragm.

This then releases the parking brake pawl, releasing the parking brake automatically.   It started in the 1960 models, and continued on ever since.

Bruce.  >:D


Until sometime after 2000, when Cadillac deleted it off all their models.
Regards,
"Cadillac" Mike

Offline The Tassie Devil(le)

  • Administrator
  • Posts: 12395
  • CLC Number: 18992
  • Name: Bruce Reynolds
Re: Hose under driving wheel, sucking air.
« Reply #11 on: December 13, 2021, 06:05:15 PM »
Thanks Mike,

I wonder why it was discontinued, but with these modern electrically operated vehicles, it would be a simple matter to include it in the electronics.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Offline cadillacmike68

  • Posts: 3438
  • Still crusin'
  • CLC Number: 15823
  • Name: M Santos
Re: Hose under driving wheel, sucking air.
« Reply #12 on: December 13, 2021, 06:45:30 PM »
Yes, it annoyed me as well. That and the pop up trunk on the sedans. There is an electric release, but then you have to lift up the not inconsiderable heft of the trunk.

Well, at least my 1996 Fleetwood still has both!
Regards,
"Cadillac" Mike

Offline The Tassie Devil(le)

  • Administrator
  • Posts: 12395
  • CLC Number: 18992
  • Name: Bruce Reynolds
Re: Hose under driving wheel, sucking air.
« Reply #13 on: December 13, 2021, 07:28:36 PM »
I love the "Pop-up" trunk on my '72 Eldorado.   Boy, it really goes up, and it surprises many people when they see it working.

Now if only I could get it to work the other way.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Offline wrench

  • Posts: 998
  • CLC Number: 27930
  • Name: Jim Cullen
Re: Hose under driving wheel, sucking air.
« Reply #14 on: December 13, 2021, 11:56:09 PM »
Thanks Mike,

I wonder why it was discontinued, but with these modern electrically operated vehicles, it would be a simple matter to include it in the electronics.

Bruce. >:D

Well, if there is a malfunction of the gear selector and it pops into gear, it will also release the only thing keeping the car stationary…the parking brake.

This was a common problem on Brand F back in the day.

I haven’t tried the electronic PB release with the shift selector on my SRX, but I can try it and advise. Not sure how the lawyers designed that.

1951 Series 62 Sedan
1969 Eldorado
1970 Eldorado (Triple Black w/power roof)
1958 Apache 3/4 ton 4x4
2005 F250
2014 FLHP
2014 SRX

Offline cadillac ken

  • Posts: 701
  • Name: k caskey
Re: Hose under driving wheel, sucking air.
« Reply #15 on: December 14, 2021, 08:29:00 AM »
What size is the hose?  Is it a small (1/4") diameter or a larger, close to a 1/2" or larger? 

If it's the larger one, it may have come off of the vacuum accumulator tank in/on the inner fender.

 

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