Car Guy

Marsingbob: You've asked a good question. Let me give you a framework to consider. My wife and I have a 2001 Monaco Signature with 84,000 miles. Left to its own devices, our rig leans. I had a local shop inspect it, & they said the bags were good. When the shop's technician left, I took it to a shop in Las Vegas that handles high-end coaches. They said the reason my coach leans is the bags on the driver's side have aged out & won't hold air. Their solution is to replace all ten (10) bags, adjust the manifold that controls the air going to each of the bags, and install a new air pump and air tank. Cost: $11,880. The business' service manager told us the bags will last 15-20 years if properly maintained. Thus, since your rig is a 2004, I think you might consider replacing them and checking the air pump that inflates them. And, you, or your technician, should check the manifold that directs the air from the pump to the individual air bags. That's my $.02. Best wishes for safe travels whatever you decide.

Interesting. Thank you.

Parked in front of a business is an older Monaco Signature. It had these devices on all axles (both sides). What are these devices? If you have used them, were they effective?