The air ride suspension can be diagnosed by a dealer with a DRB tool. It should not take them long to do this, but I'd bet they still want a bit of money to do it. Mark 1992 New Yorker Salon 47K and a sunroof 1990 Chrysler Imperial 1991 Plymouth Grand Voyager LE 1994 Chrysler LeBaron LX convertible 1999 Chrysler Town and Country LXi Atlanta, GA