my friend has a mark its a 93 and his bags aired up and won't vent and now it sits like a joe dirt hot rod all it needs is some M/T sportsmens out back ans cragar SS....LOL any way can you help him?,My suggestion would be bad soelonoids....Am I close? :Beer

The valve could be dirty!

my rear bags always vent, I put something in the trunk and hear the hiss. Is there a way to fix this? Where is the relief valve?

You don't want the hiss? Thats one of my favorite things!

The hiss is fine, but I look like a low rider driving down the street, and then my check air ride message comes on