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.