× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: brake release but yellow knob wont stay in
Posted to HD/Fleet Forum on 11/23/2024 5 Replies

If air is coming out of the trailer service line without the red dash knob pushed in check out the tractor protection valve..... Login to read more.

5 Replies Received (View Replies)