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Height Control Valve repairable? [message #249634]

Tue, 13 May 2014 18:10

Broham

Messages: 204
Registered: March 2013
Location: Detroit, Michigan

Karma: 0

Senior Member

hello all,

I have a '76 and my air ride has a problem. From what I can tell, on the right side, the valve dumps air when it is too high OR too low. If you manually (from the dash) adjust the level, it will hold for weeks/months. And the left side works just fine. Is that Height Control Value problem? Is there just a bad seal on raise side of the valve that I can repair or just replace the thing?

thank you all in advance.

Todd

Todd Owner of a 1976 Eleganza II 26’ other toys: 93 Vette 84 Goldwing and gone but not forgotten 72 CB750 Chopper 96 Caprice Classic 34 Ford roadster 94 Fleetwood

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Re: Height Control Valve repairable? [message #249635 is a reply to message #249634]

Tue, 13 May 2014 18:16

kerry pinkerton

Messages: 2565
Registered: July 2012
Location: Harvest, Al

Karma: 15

Senior Member

Can't help with the repair but Dave Lenzi near you rebuilds them and Applied sells new ones.

Kerry Pinkerton - North Alabama Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L

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Re: Height Control Valve repairable? [message #249639 is a reply to message #249634]

Tue, 13 May 2014 18:28

A Hamilto

Messages: 4508
Registered: April 2011

Karma: 39

Senior Member

Broham wrote on Tue, 13 May 2014 18:10

hello all,

I have a '76 and my air ride has a problem. From what I can tell, on the right side, the valve dumps air when it is too high OR too low. If you manually (from the dash) adjust the level, it will hold for weeks/months. And the left side works just fine. Is that Height Control Value problem? Is there just a bad seal on raise side of the valve that I can repair or just replace the thing?

thank you all in advance.

Todd

I don't know if all models are the same or not, but this is pretty inexpensive

http://www.appliedgmc.com/prod.itml/icOid/953

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Re: Height Control Valve repairable? [message #249675 is a reply to message #249639]

Wed, 14 May 2014 00:09

appie

Messages: 902
Registered: April 2013
Location: denmark

Karma: 2

Senior Member

Todd

before you spent any money:

I just spent 2 days chasing a leak that did about the same, I just could not find that leak in the compartment Air was just blowing around in up and down I took the whole unit apart and resealed all connection and added a new pressureswitch ( the one there was from a compressor) taking the opportunity to add a air takeout.
When I put it all back in there was still a leak. Then I found out that one of the airlines had a hole 2 days of searching for a leak and a 2 minuts repair
Some people might also remember that when i got Olga the system did not work and it to took several days to find out that the PO had switched 2 airlines

So what I mean to say is Spent some time to go through the whole system the chanche is you find something wrong somwhere that you can fix for no money and in the process you learn alot about your GMC

Appie eleganza 76 "Olga" now sadly sold 6 wheel discbrake Quadrabags Springfield stage 2 462 olds Manny tranny ( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html Fulltiming in Europe july 2014 til july 2016 Denmark

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Re: Height Control Valve repairable? [message #249677 is a reply to message #249634]

Wed, 14 May 2014 00:31

Broham

Messages: 204
Registered: March 2013
Location: Detroit, Michigan

Karma: 0

Senior Member

I think I have isolated the problem to the valve. I say this because when I disconnect the linage and manually actuate the valve up or down the coach goes down. When I select "raise" from the dash it does up and "lower" takes it down. Could it be anything other than the valve? what else should I check?

thanks agsain

Todd Owner of a 1976 Eleganza II 26’ other toys: 93 Vette 84 Goldwing and gone but not forgotten 72 CB750 Chopper 96 Caprice Classic 34 Ford roadster 94 Fleetwood

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Re: Height Control Valve repairable? [message #249681 is a reply to message #249677]

Wed, 14 May 2014 00:46

appie

Messages: 902
Registered: April 2013
Location: denmark

Karma: 2

Senior Member

Todd, maybe a silly question But how does the she goes up without the linage ?

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Re: Height Control Valve repairable? [message #249690 is a reply to message #249681]

Wed, 14 May 2014 05:55

Joe Weir

Messages: 769
Registered: February 2013
Location: Columbia, SC

Karma: 7

Senior Member

appie wrote on Wed, 14 May 2014 00:46

Todd, maybe a silly question But how does the she goes up without the linage ?

I think he meant linkage instead of linage?

76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center... Columbia, SC.

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Re: [GMCnet] Height Control Valve repairable? [message #249767 is a reply to message #249690]

Thu, 15 May 2014 00:07

jimk

Messages: 6734
Registered: July 2006
Location: Belmont, CA

Karma: 9

Senior Member

What year is your coach?
Should you have the later models with Electo Level, they will partly
controlled by the solenoid .

On Wed, May 14, 2014 at 3:55 AM, Joe Weir wrote:

> appie wrote on Wed, 14 May 2014 00:46
>> Todd, maybe a silly question But how does the she goes up without the
> linage ?
>
>
> I think he meant linkage instead of linage?
> --
> 76 Birchaven - New engine, trans, brakes, airbags, fuel lines, seats,
> upholstery, beverage center...
> Columbia, SC.
> _______________________________________________
> GMCnet mailing list
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502

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Re: [GMCnet] Height Control Valve repairable? [message #249854 is a reply to message #249767]

Fri, 16 May 2014 12:22

Broham

Messages: 204
Registered: March 2013
Location: Detroit, Michigan

Karma: 0

Senior Member

yes, I meant linkage. fat fingers and auto correct. Smile

It is a 1976 with the non-electro level system. I believe it was made in late '75.

Todd Owner of a 1976 Eleganza II 26’ other toys: 93 Vette 84 Goldwing and gone but not forgotten 72 CB750 Chopper 96 Caprice Classic 34 Ford roadster 94 Fleetwood

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Re: [GMCnet] Height Control Valve repairable? [message #249865 is a reply to message #249854]

Fri, 16 May 2014 16:52

jim kanomata

Messages: 257
Registered: March 2007
Location: fremont,ca

Karma: 12

Senior Member

Trace the lines for one side at a time.
Sometimes the solenoid valve by the compressor can leak and you'll not dtect it till you disassemble it.
Rust from the tank lands on the seal and will not seal.

Jim Kanomata Applied/GMC, Fremont,CA jimk@appliedairfilters.com http://www.appliedgmc.com 1-800-752-7502

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