Well, looked good for leaks yesterday, every place my head would fit anyway.

When I cranked my car up this morning, for some reason( I guess I was thinking about the brakes), I decided to pump the brakes up before the car got warmed up. I only pumped them about 7 times and had full pedal. And as I did it, the more I pumped the lower the rpm of the engine was until it stalled out.

Any Ideas why my brakes are getting softer as the car warms, or is that a stupid question? Im not the brake guy. I just wanna make sure my master cyl is really bad before I spend the money.

 

mabe pumping it lowered your vaccume pressure enough that it couldn't sustain idle.