Hi. I own a Lexus GS 300 1999. Love this car.. However, we are having brake issues and really cannot afford a lot...I am under going treatment for cancer and my husband is being layed off,

There are no lights on the dash showing any problem...When I pump the brakes, it stops on a dime... We dont know what it could be. We are hoping for a easy fix... or something simple and not a master cylinder problem.

Any suggestions would be appreciated...

Thanks