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Topic: Level system light pressure at 70 (Read 426 times) previous topic - next topic

Level system light pressure at 70

Driving fine on trip. Suddenly level system and beeping.  Air pressure at 70, limped into piolet store. Turned off engine and pressure dropped to 50 and holding. With engine running at high idle won't go any higher than 50PSI.  Any suggestions?  Mobile service is on the way. Back right corner looked like not at ride height.  Not noticing/hearing  any major leak off when I turn off engine but I am sitting beside an idling semi.

2000 GV320 4010 build #5712  2019-?
1999 Bounder 2000-2008
Bardstown, KY
🥃The Bourbon Capital of the World🥃

Re: Level system light pressure at 70

Reply #1 –
Turn on the engine and go to the low corner and see if you hear the leak. Guessing blown air bag.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Level system light pressure at 70

Reply #2 –
Yup, either a massive leak which you should hear OR the air governor is hanging up.  New air governors are under $25.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Level system light pressure at 70

Reply #3 –
The leak is in the suspension system and not the breaking system. there is a safety pressure valve that prevents a leak in the suspension system from draining the breaking system as well. that valve will engage at about 60 lbs.

in the wet bay under the drivers seat are two switch valves that are subject to corrosion. they activate the alarm on the dashboard. I have had those go out with similar results to yours. I could hear the air escaping with the engine running so it was fairly obvious.
Rick and Wendy Green
1998 U270 3600 The Coach Formerly known as Princess
Build# 5336
2007 Ford Explorer

Re: Level system light pressure at 70

Reply #4 –
Back in business, mobile repair stopped by Within 15m and tightens the line coming off of compressor
Aired back up and on the road again. No charge!  Some clean threads were showing.  2minute repair

2000 GV320 4010 build #5712  2019-?
1999 Bounder 2000-2008
Bardstown, KY
🥃The Bourbon Capital of the World🥃

Re: Level system light pressure at 70

Reply #5 –
Glad to hear.
Curious to know why the one low area as you stated and not the entire coach being low.
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Level system light pressure at 70

Reply #6 –
To answer your question lt403, in this case it was probably just unlevel ground the coach was sitting on..
Dub McBride 1996 270