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03-23-2020, 08:47 PM
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#1
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Senior Member
Join Date: May 2018
Posts: 823
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Air release screams :
2019 DS 4018: When hitting auto level the passenger rear just screams and squeals as the air is released and coach is lowered.
It isn’t the jack making the noise.
Is the air system Newmar, Freightliner or HWH and any ideas on what would make all the noise while air is released?
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John, Sharon & (Luna)-Blk.Tri.Australian Sheppard
2022 Newmar LA 4551, 2019 DS4018 Sold
21' Tahoe Z71, Demco base, Avail bar, Air Force 1.
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03-23-2020, 09:35 PM
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#2
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Senior Member
Join Date: Dec 2016
Location: So Cal
Posts: 1,374
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Look up AZPETE on this forum he has ALL THE ANSWERS about the HwH systems. Send him a private message and ask to post his reply so others will learn
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2000 42' BEAVER MARQUIS AMETHYST w/tag 2 SLIDES CAT C12 425 hp SOLD.........
2014 Tiffin Allegro Bus 37AP
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03-23-2020, 11:18 PM
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#3
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Senior Member
Monaco Owners Club Vintage RV Owners Club
Join Date: Sep 2014
Location: anywhere U.S.A, Currently back home in Thailand!
Posts: 4,245
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When you dump your air, go back to where you hear the air releasing and check the exhaust on the dump valve for a obstruction! Like a bent air line, mud dauber nest in the port, something like that! Rail! 
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Retired, and "Always on Holiday!"
1996 Monaco Windsor 38PB, "Mona" 275 HP., 8.3 Cummins, 3060 Allison 6 speed, 2001 PT Cruiser, "Bailey"
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03-24-2020, 05:39 AM
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#4
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Senior Member
Newmar Owners Club Freightliner Owners Club iRV2 No Limits Club
Join Date: Aug 2013
Posts: 904
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This has been a pet peeve of DW since we got it...I spoke to Freightliner in Gafney and they said it is due to the rubber cover where the air is released. It is there to prevent bugs/dauber/etc. from blocking it but can be noisy at times. They said I could spray some lubricating in there and it would help, but I cannot seem to reach it.
Maybe in my next trip to Freightliner I can have them do it.
Interested in what others think.
__________________
2017 Newmar Ventana 4310
1,440W solar / 800 AH Lithium
2007 CR-V
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03-24-2020, 12:54 PM
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#5
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Senior Member
Newmar Owners Club Winnebago Owners Club Spartan Chassis RV Trip Wizard
Join Date: Mar 2006
Location: Tyler, Texas
Posts: 573
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This happened on our old rig after Freightliner replaced our dump valve. They had a "silencer" that they then installed which quieted down the sound to what I had previously.
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Millard & Sherry
2019 Mountain Aire 4018
Toad 2014 Honda CRV or 2019 GMC Canyon
M&G Braking-Roadmaster Towbar
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03-24-2020, 03:32 PM
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#6
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: May 2013
Location: Springfield, IL
Posts: 1,070
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Here's the contact info for azpete (Paul Maddox)
Phone: 602-549-3638
Email: pfmaddox@att.net
Paul works for HWH and is always ready to help us out. He isn't soliciting work, he just helps us out.
He even offered to stop by on his way home form FL to help me with a problem in my jacks - got it fixed thanks to him so he didn't have to come by.
Stay safe - Richard
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2011 Itasca Ellipse 42QD; 2012 Buick La Crosse; Retired US Army MSG (20 years AFS); Retired! Retired! 
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04-08-2020, 07:34 PM
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#7
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Senior Member
Newmar Owners Club Freightliner Owners Club iRV2 No Limits Club
Join Date: Aug 2013
Posts: 904
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Granite17 - Did you ever make any progress with the squeal? I am interested as I would love to fix mine...
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2017 Newmar Ventana 4310
1,440W solar / 800 AH Lithium
2007 CR-V
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04-08-2020, 07:58 PM
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#8
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Senior Member
Join Date: May 2018
Posts: 823
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Quote:
Originally Posted by richpatty
Granite17 - Did you ever make any progress with the squeal? I am interested as I would love to fix mine...
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I haven’t yet, I added to my list of
warranty items at Nappanee, now moved back to early July.
__________________
John, Sharon & (Luna)-Blk.Tri.Australian Sheppard
2022 Newmar LA 4551, 2019 DS4018 Sold
21' Tahoe Z71, Demco base, Avail bar, Air Force 1.
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08-09-2020, 05:55 AM
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#9
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Senior Member
Newmar Owners Club Freightliner Owners Club iRV2 No Limits Club
Join Date: Aug 2013
Posts: 904
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Bringing this one back up as I was wondering if anyone ever found a way to make this quieter...
__________________
2017 Newmar Ventana 4310
1,440W solar / 800 AH Lithium
2007 CR-V
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08-09-2020, 07:49 AM
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#10
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Senior Member
Newmar Owners Club
Join Date: Dec 2015
Location: Wellington, Florida
Posts: 1,721
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My 2015 does the same thing. I use it as my "Hello" entrance to a new campsite!  
__________________
Ted & Nancy
2015 Newmar Dutch Star 4018
2020 Jeep Wrangler Rubicon
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08-09-2020, 10:56 AM
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#11
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Senior Member
Newmar Owners Club Freightliner Owners Club iRV2 No Limits Club
Join Date: Aug 2013
Posts: 904
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Quote:
Originally Posted by Dutchstar411
My 2015 does the same thing. I use it as my "Hello" entrance to a new campsite! |
My next service in Gafney is in January...maybe I can get them to do something. They had suggested spraying Super Lube into the rubber covering where the air is releases to quiet it down... But i cannot get to it. Probably be far easier from underneath.
https://www.homedepot.com/p/Super-Lu...1110/202932707
We will see.
Rich
__________________
2017 Newmar Ventana 4310
1,440W solar / 800 AH Lithium
2007 CR-V
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08-12-2020, 05:09 PM
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#12
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Senior Member
Join Date: May 2018
Posts: 823
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Quote:
Originally Posted by richpatty
Bringing this one back up as I was wondering if anyone ever found a way to make this quieter...
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I had Newmar take a look at this or should I say a listen to this while in Nappanee a couple weeks ago.
They explained that there was a flapper valve to keep dirt out and the sound I was experiencing was totally normal [emoji3061]
Be interested on what Gaffney would say.
__________________
John, Sharon & (Luna)-Blk.Tri.Australian Sheppard
2022 Newmar LA 4551, 2019 DS4018 Sold
21' Tahoe Z71, Demco base, Avail bar, Air Force 1.
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08-12-2020, 05:54 PM
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#13
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Senior Member
Newmar Owners Club Freightliner Owners Club iRV2 No Limits Club
Join Date: Aug 2013
Posts: 904
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Quote:
Originally Posted by Granite17
I had Newmar take a look at this or should I say a listen to this while in Nappanee a couple weeks ago.
They explained that there was a flapper valve to keep dirt out and the sound I was experiencing was totally normal [emoji3061]
Be interested on what Gaffney would say.
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They said the same. The rubber covering I mentioned is the same flap you are referencing.
I had Gafney listen and they agree it was normal. I wish there was a way to make it quieter.... change the cover from rubber to something more breathable?
__________________
2017 Newmar Ventana 4310
1,440W solar / 800 AH Lithium
2007 CR-V
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08-12-2020, 07:30 PM
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#14
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Senior Member
Join Date: Sep 2015
Location: SW FL
Posts: 373
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Mine used to really be loud and the DW was always startled by it. So I started pushing the air horn button right before I released the air bags to warn her. But now, it doesn't seem as loud as it used to
__________________
B Sears
2016 Palazzo 36.1 2019 Dutch Star 4310 Freightliner
2015 jeep 4d wrangler2019 GMC Yukon Denali
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