[Richard]

Hi Troy,

You have a correct understanding of the relationship and operation of the travel solenoids with the air bags.

I would do a number of diagnostics.

One, crank engine, raise coach, turn off engine, turn key to ON position but do not crank, make sure coach is in travel mode. Run to driver side and listen.

Another guru is having exactly the same issue as we speak because the cold weather is causing one of the rear air bags to leak sufficiently enough the coach won’t remain at ride height.

Second, and don’t do if you are not comfortable. Slip partially between the drive and tag tire. Look at the top of the drive axle and you will see where the vertical arm for the HCV connects. It’s a grommet that slips over a little knob. Wet the knob with some sort of lube and slip the vertical arm off the knob. With the coach running and in travel mode, move the arm up and down to check the operation of the HCV.

Is it cold where you are? You could have iced up the small orifices in the HCV.

Why are you changing the air bags? Known problem? Generally time to replace? Some other reason?

You can call me at 817 223 2056 if you would like.