No brakes in the morning. It will definitely wake you up more than coffee.

[petrified.rabbit]

good luck with the fix..

Air in the lines CAN create an intermittent pressure problem, but its impossible to find without seeing the system.

[jamesd]

Thanks petrified.rabbit! I'm crossing fingers. Since my youngest daughter will be driving the car to high school I don't want to skimp on brakes. New booster and master cylinder will definitely give me a peace of mind knowing she will stop when she needs too. I picked up a new master cylinder for $122 at Autozone and includes the reservoir and bleeding kit.

[jamesd]

Hi everyone. Well the problem is back. My daughter couldn't brake when she was approaching the stop sign. The car did eventually but it took a lot of effort. This happened for a brief moment. After about a minute everything and braking resume like always. What is causing it? So far we tighten the brake line hose, bleed the system and still the same problem. New brake booster, same problem. New master cylinder, same problem. What's there to check or replace? I check all wheels and I dont see any fluid or anything in the inside of the wheel. Again the problem came back after a day short of a week after replacing the master cylinder. Also just before the car lost braking power the car sat in the drive way for 2 hours. Then my daughter got in the car to go to the corner store and that is when it lost brakes for a brief moment. Any suggestions? Thanks..