2012 Cascadia owners

Thread starter #1
How often does your air compressor cycle? 2012 cascadia uses air pressure for the def pump. Mine cycles Every 4-6min which I think is too often. Curious to see what others do?
Thread starter #6
Brake chamber would leak as soon as I released the brakes. My leaks only when moving. I really think that my def pump is using too much air


Rabid Squaw
Staff member
Well, then, replace the DEF pump.

When that doesn't work, look at the governor and brake system.