bill klein
New Member
My Lull brake booster often sticks so that the only brake fluid that returns from the 8 wheel cylinders is the volume of the master cylinder- not the booster cylinder. The result is that not all the wheel cylinders release therefore a brake hangs up. I have removed the extension from the booster and worked the rod by hand (sometimes I find it stuck out and a gentle bump makes it jump back in) and the brakes work well for a few dozen times then it goes back to sticking. Any ideas onwhat could be causing this? Bill Klein