We have a 96 f150 we have replaced all parts in the brake system besides the brake booster and bleed the brake starting at rear passenger rear driver front passenger front driver we have brake pressure when truck is off but brakes go completely to the floor when started.....my husband pulled the vacuum line off the booster and plugged it with his hand with it running nd we had brake pressure drove it a bit less than 5 miles and brakes seemed to be a bit better any clues? Any pointers? Are we missing something? Thanks
Sep 16, 2015 at 8:47 PM