Hello thanks in advance I have a Volvo 2000 vnl with 28 foot box.Its been 6 months since I moved it,and yellow parking brake won't push in bleeds air down fast.pressure is good 120 and gets there quick .My question is causes for this issue also already changed the pb /tsupply valve can it be a stuck brake ,leaking brake seal or should I look somewhere else.im new to I'm sure that's obvious .. thanka
2000 Volvo VLN Box Truck Parking Brake Valve
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by J crane, Nov 30, 2024.