RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 05-09-2014, 06:34 AM   #1
Senior Member
Join Date: Jul 2010
Posts: 299
How many ride height control valves do I have

I have a 2007 MADP with a tag axle and I'm looking for an air leak, I don't have the safety equipment to crawl under the motorhome so I'm just spraying the valves I can see with soapy water, I've found a ride height valve at each of the front tires (one is leaking) and so far have only found one ride height valve on the rear, I suspect I have at least 2 and as many as 4 but I'm not sure. Any ideas of how many valves I should have on the rear.

Sonny, Anita and Phoebe
2005 MADP 4304, 2005 Ford Crew Cab F150 toad, 2009 Harley Ultra Classic
harleyman134 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-09-2014, 07:15 AM   #2
Community Moderator
"007"'s Avatar

Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 29,723
Here is a discussion on ride height and links found in QT's 1 & 2.

98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
"007" is offline   Reply With Quote
Old 05-09-2014, 10:15 AM   #3
Senior Member
siggyd's Avatar
Freightliner Owners Club
Join Date: Aug 2005
Location: Chicagoland
Posts: 715
It is very common to have ONLY 3 ride height valves.
Siggy & Ursula.
2011 Newmar DSDP 4020 (no Tag, no DEF, 07 emission),
FTL XCR ,ISL 400,2015 Jeep Cherokee Limited, 4x4, V6, Active Drive II, BrakeBuddy
siggyd is offline   Reply With Quote
Old 05-09-2014, 10:33 AM   #4
Senior Member
Join Date: Sep 2010
Posts: 3,236
2 in the front and 1 in the front.
tom chelbana is offline   Reply With Quote
Old 05-09-2014, 11:21 AM   #5
Senior Member
slabman's Avatar
Ford Super Duty Owner
Join Date: Oct 2002
Location: Fairview TX
Posts: 2,258
Yeah, two in front and only one in rear. There are also a couple Parker valves in this system that are known to leak.
2018 Newmar Ventana
2007 Lexus LX470 Toad
slabman is offline   Reply With Quote
Old 05-09-2014, 12:11 PM   #6
Senior Member
Join Date: Jul 2010
Posts: 299
Thanks guys, 3 it is and it kind of makes sense. I'm also guessing that the reason I have two in the front is the independent front suspension.
Sonny, Anita and Phoebe
2005 MADP 4304, 2005 Ford Crew Cab F150 toad, 2009 Harley Ultra Classic
harleyman134 is offline   Reply With Quote
Old 05-14-2014, 05:59 AM   #7
Senior Member
KenSherwin's Avatar
Join Date: Jul 2006
Posts: 640
If you had 4 valves, the 4th valve would need to be set so the back axle is exactly level when the front is exactly level (assuming a flat floor, of course). If they were not set the same, the body would twist (bad) or 2 opposite corner tires would have a tremendous weight on them (also bad) in an attempt to get the ride height that was set. With only 3, those problems are eliminated.

To the engineer, the world is a toy box full of sub-optimized and feature-poor toys.
KenSherwin is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Air ride height AF4J Monaco Owner's Forum 5 02-26-2014 08:00 AM
Air ride height AF4J Class A Motorhome Discussions 2 02-24-2014 04:15 PM
Take #2 - Source's New REK Raises the Bar for Ride Control and Comfort DriVer RV Industry Press 0 12-04-2013 10:20 AM
Comfort Ride Control Valves Letsgoagain Monaco Owner's Forum 9 10-21-2013 06:30 AM
Ride control experiences dubob Truck Camper Discussion 3 09-08-2013 05:38 PM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:47 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.