Is there a secondary air problem in my truck?
Is there a secondary air problem in my truck? Also I hear pretty good and don't hear any other leaks when truck is parked. When driving the truck Primary air stays right at 125 doesn't move unless braking then builds right back up and stays right on money. How to fill air tanks in a Freightliner? Rudolph Diesel : With the tractor off Rudolph Diesel : after the tanks are drained fill the tanks with a air hose at the tanks you might have a brake chamber on the spring brake bleeding back threw the system you canhear it better...