Brake problems?

[Raabert2000]

Hello. How is everyone doing? Lately in my 97 4.6 RR I have had to "pump" the brakes 5 or 6 times before i will have effective stopping power. This happens after my car has been sitting for over 24 hours without driving it. Could this be caused by a leak in the brakes? What else could be the cause of this? Thank you, Robert

 

[Steve83]

Low fluid level, weak booster pump, air in the system, loose hubs or caliper brackets...