Dealing With a Leaky Parking Brake Air Valve
If you've ever sat in the cab and heard a faint, annoying hiss coming from the dashboard, you're likely dealing with a cranky parking brake air valve . It's one of those parts that most drivers don't consider until it starts acting up, nevertheless it does, it's impossible to ignore. That little yellow knob on your dash is more than just a plastic handle; it's the primary interface between you and the heavy-duty springs that keep your truck from rolling away while you're grabbing a coffee or sleeping in the bunk. ...