[Trainer]

Ron,

I had a similar problem on my way home from Table Rock while visiting Chappell. Not building air pressure but no air leak noise with engine off. Finally heard an air leak in rear where my dryer is mounted with engine running.

With engine off, I reached under the dryer with a long screw driver and pushed the pop off valve closed. Been working fine ever since. Running the coach this passed two days after sitting several weeks on little trip with no problems.

Good luck solving your situation.