Mine doesn't do that.
Mine does not make that sound. It sounds like a vacuum line has come off. Look under the dash and find it or take to to the dealer. A vacuum leak can cause you other problems if not fixed.
Paved Roads - Another Fine Example of Unnecessary Government Waste!
Modes - 3.5" Lift - Steel Jeep Bumper with Winch. Body Armor 4x4 Rear Bumper and Rock Sliders. - Hard Top painted White to repel the HEAT! - Ham\CB Radio - A few dents and Scratches John Bull Mod to Front & Rear Diff Covers. Woods Steering Stabilizer Relocation Bracket. Off-road Front, Rear and Rock Lights, Rear CAM, On Board Air.