All air tanks full no secondary pressure

Yes yesterday I was swapping around the pressure protection valves on the air dryer. Now it seems every thing works fine except my secondary fills before primary. I should have never messed with the air dryer. I’m going to button it up and test drive. Gaggum trailer abs light is on right now!?!?

 

Everything is working now. I foolishly messed around with the pressure protection valves on the air dryer and that was the air suspension problem. I willy nillyed around with pressure protection valves and everything works, no leaks the only problem is now, my secondary hits 100 psi before primary starts charging…kinda weird listening to the engine fan shut off while the primary gauge only reads 50psi.
Thanks again for your input. If I had seen your post before I started messing with the air dryer, I would be whole. I test drove it every thing is hunky dory. Probably end up with a new AD IS dryer soon because I can’t find a service kit for PP valves.
ETA: Everything I’m finding online says DON’T ATTEMPT TO ADJUST PP VALVES


Oops!

 

No I switched primary and secondary PP Valves. The way I figure, if I lose an airline on my engine fan, transmission, front brakes or seat ride air bag, it won’t protect my primary system.

 

Problem is, I moved all 4 of them around and not sure which is the original primary PP valve.

 

The way I understand it is, Primary is 106 PSI, secondary is 109PSI and auxiliary are single digit PSI. Years ago, I isolated my front air ride suspension to a remote PP valve and put an inline regulator on it to get rid of the leveling valves and it runs at constant pressure instead of constant ride height. I’m not sure what the 2nd auxiliary port runs.

 

Yes it went out 20 feet into the test drive.