RE: NEED HELP 1998 NAVI - Air ride compressor runs constantly
Call Eddie at American Air Suspension. He should be able to help you with the diagnosis more than I can.
But if the height is okay, it could be front shocks, a leak in a line, or more likely the compressor relay. If there's a leak somewhere, the compressor would run and you'd get a check suspension light, but if it's set up like the mark, it would shut off after 90 seconds, not kill your battery.