Park brake blocking valve
#1
Rookie
Thread Starter
Join Date: Apr 2018
Posts: 1
Hi All from Downunder,
I am having problems with the brake blocking valve on an old Volvo F7. It should just easily pop off when the air pressure is up, but mostly takes a lot of effort to hold in for a while before it will stay there and the park brake will release. Frustrating thing is it occasionally works properly. Any clues? Cheers |

