Air pressure in secondary line won't go up to normal level

Update: I went to the terminal today and checked my truck into the shop, even though I am on hometime. The mechanics inspected the truck while I was there, and they showed me that both of the air bags on the passenger side of the truck are blown. The air bags on the passenger side of the truck are blown so bad that I was able to stick my hand underneath them and inside them. The mechanics are repairing my truck right now. I invite the three people that I pinged and everyone else to comment on this diagnosis.

@North Pole Nightmare , your speculation is correct.

@Ridgeline
@Rideandrepair