Moline_guy
Well-known Member
We have this 83 freightliner we use to haul cattle and some grain with. When you apply the brakes the secondary air pressure gauge will drop quite fast and the other air gauge doesent move much. If you use the brakes much at all the secondary gauge will drop almost completley off and the low air pressure light comes on, but the air button doesnt pop out. The brakes will continue to work and release and then the secondary gauge pressure will come back up after a bit if you don't use the brakes. I might have to take it in to town to have it looked at, just thought I would ask on here if any one knows what might be causing this. Thanks for any help with this.
![plainsman1243.jpg](https://i202.photobucket.com/albums/aa303/moline_guy/plainsman1243.jpg)