120 lbs air exhausts to 100lbs

[tskrodzki]

We have a 2000 XLII LeMirage Senators coach with a Vulcan Conversion. Recently we had a problem with the ride height and the A-Tank not holding pressure. I found a small leak from the 3rd Norgeen valve so I purchased the rebuild kit from Prevost and rebuilt all 5 just to be safe, figured if one started leaking another was soon to follow, any way the leak stopped and I can once again raise the front end, but the ride height doesn't appear to be normal as the front tires rub the styrofoam wheel well when turned. I have also noticed the A-tank gauge gets to 120 psi then I hear it blow off In the rear wheel area the pressure then drops to 100 psi and slow rebuilds to 120psi. I have sprayed a soap solution on all the air line fittings I can see and can't find a leak. I don't remember this happening before and tend to believe my ride height issue is the lack of the a-tank keeping 120psi. Thank you in advance for anyone's help on this.

[JIM KELLER]

You have an air leak somewhere in the system. Not necessarily in the areas you have been working. Your pressures are normal cut in and cut out numbers. Keep looking.

[Charles Spera]

Just a guess but could the air dryer valve be hanging up in the open position? Should be easy to check and replace.

[rahangman]

Since it sounds like it has "just started" might check the ride height adjustment arms, to make sure that it has not become disconnected somehow

[tskrodzki]

Thank you for the responses. I will look into the purge valve on the air dryer once I locate the air dryer :D

[garyde]

You may already know this, Be sure to have your Coach properly supported before working on your air system. Not your axles, but the Coach itself.