|
Air brake problem bedford bus 1977
Hi guys newbie
I have a 1977 bedford bus pek1bfw
Has air assisted brakes all of a sudden the air pressure only builds 20psi and stays at that in normally goes to 7bar 100psi 90 seconds but now it will only build to 20psi and it holds 20psi so no leaks wondering what could this be i had to pump compressor up with a portable compressor but after a while of driving the air goes back down to 20psi and the brakes wont release.
Any help would be much appreciated.
|