Thanks everyone. I should have also noted I myself tested the lines and new shocks 4 times and found no leaks using soapy water. I am not sure how the mechanic tested with smoke. He told me he did this. This shop specializes in air ride systems. I took him at his word. He showed me the scanner and ran through everything showing no issues. I pulled the air line going to the passenger shock and air came out and I could feel and hear air coming out of the hose while the compressor was running. I tried this on the driver side and only heard very little if any air come out of the shock and could not feel or hear any air come out of the air line. Is it possible there is an issue with the compressor only pushing air out of the passenger line and not the driver side? This deal is very frustrating. I'm thinking of just replacing parts as I go ,beginning with the compressor. Everyone told me to let the scanner tell me but the scanner shows everything is perfect. I'm at a loss. Thank you all very much for the help. Please keep your suggestions coming. Do any of you live close to St. Louis?
the air line is a T so air pressure is the same at any position, it does not differentiate between left/right
so what I would do is check the air presure either after it has sat overnight (before you start it up) and/or after a drive before you have cycled the key
the system should hold air for days or even weeks or longer just sitting parked *without the pump having been ran
if there is no air pressure or not much in the above scenario's then you know you have a leak somewhere.......
normal psi resting is around 20-23psi, maybe slightly less if the relief valve has let a tiny bit out after shutting it off
you can sort-of judge that by cycling the key so the pump runs, then after go right away and pull the line off you will have a pop-hiss
if you pull the line off after it sat overnight before starting it then it should have the same pop-hiss feel/sound if there is no leaks, since you stated there are no external bladders to "feel"