Recent content by Phil S .

Does anyone have a diagram not a schematic of the brake system, have crossed line or bad valve but having problems following hose routings. Disconnected front brake hoses but do not know where the supply comes from to the bulkhead by the bumper.

Have air leaking out from the bulkhead on the floor to the brake pedal valve connection. Disconnected both service brake lines at the rear axle brake chambers and no air coming from the brake chambers. The front brakes should not come on with the parking brake correct? Disconnected the hose at...

Have a M1078 that was bought and while driving brakes would lock up. The air pressure was 95 psi, adjusted to 115 psi. The service brake would engage when the park brake was released. Checked for leaking air into system and found that the vent behind the grille has escaping air, plugged with...