Like many others, one thing missing in my Liberty is an aux air pressure gauge on the dash. To me, that gauge is important in order to see if I have enough aux air to make a level adjustment without the engine running, monitor the amount of cycles the compressor makes while keeping up with the suspension while driving, leaks while parked and finally to know the pressure my aux compressor is putting out.

So I installed a digital gauge by Air-Zenith that also gives the chassis battery voltage at start up for 60 seconds then the air pressure. Rather than tying it into the ignition, I hard wired with a switch so I can flip on/off as needed. Total cost about 80 bucks.

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Aux air pressure

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Chassis voltage

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A little bling for the King

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Sending unit in steering bay