having brake Problems on a 99 Blazer
 

ok so I've been having alot of brake problems lately. I just replaced the brake booster and both rear calipers and pads. My truck was braking fine for about a week. Now my rear driver side brakes lock up after useing them while driving. When I park my car and let it sit for a little while, the brakes loosen up and go back to normal. I can't figure out whats wrong with it. No brake lines look kinked or pinched and everything else looks fine. I did have to remove the brake lines from the master cylinder so I could get to brake booster out to replace it. I don't know if I maybe messed things up there or not. Maybe one of you know what I should do or where I should look. Thanx

Replace the flex lines to the calipers. The inner lining has cracked loose and your moving it caused it to dislodge somewhat. It's sort of acting like check valve.

Buy both... if that fixes bad side, the other may not be far behind

ok, will do. come to think about it I did bend the hose back while changing the caliper but I didn't think it would crack it. thanks

I replaced both hoses and still after driving about a mile the brakes started locking up again.