No air in service line freightliner 

Good job ❤

@iwin78 did you have to do anything else I just replaced the tractor protector valve and I’m still not getting pressure in my service line

Yes definitely explain less until you really understand the valve operation. But I applaud you for trying and repairing your issue.

Is there is Anyway you can help me find out why my break not release on my trailer I replaced all the valves on the trailer and the truck they’re still not releasing on trailer

Good job but explain in less 🙂 time