Brake Issue

Need make sure that the air gets drained from tank. Caliper pistons could be rusted.
How long has it been sitting?

And, if floating caliper disk brakes, check that the pins (that the caliper floats on) are clean and lubed.

Pretty easy for dirt, rust, etc to not allow the "lazy pad" to pull away from the disk.


Since it is "air brakes for sure", no worries about changing brake fluid.

I would check with your local NAPA

Roadmaster I believe

Do you know what chassis it is on?

Air brakes for sure, disc, and I can only assume they original. Where’s does one get brakes parts for a diesel pusher? I’ve done many brake jobs on normal cars and trucks but I have never bought brake parts for a motorhome….

Yup, let us know:

Disk or drum?

Hydraulic or air?

And, at 19 years old, what maintenance has been done on them?

What type of brakes? are they air over hydraulic?
Air over hydraulic could have moisture in the system.
New calipers and good bleeding of system.