Blazeracing

Hello fellow rv'ers I am glad google lead me to this site. Seems very helpful. I too have a 2000 Fleetwood discovery on a Frieghtliner chassis. Both of the air gauges act strange dropping to 0 and back to normal. But I thought it was something wrong behind the gauges because I can hear something kinda whirl and grind as the gauges fluctuate. I'm just wondering if I have different problem then the module back under the bed. I plan in looking into the module tomorrow. Seems like logical place to look.