Checked the air pressure in the tires since it had been a while. All were fine. At the RV wash the next morning the left front was down to 34 psi from 105. Couldn’t find a leak, Apparently, when I checked the pressure the valve stem did not properly reseat so I lost air all night. No problem, it took a while to pump it up with the compact air pump we carry. Rig looks much better. It really needed washed as it had not been since California. Then on toward Waterton Lakes NP.