brake problem

[martin59]

my brakes work fine but if I let my car sit for a few days the petal goes to the floor then I pump it and its fine again. I have no booster so what else could it be did the brake petal have a spring down there to hold it from slowly settling to the floor.

[Dick Koch]

Martin - If you are loseing your pedal you should be losing brake fluid also. Have you checked the master cylinder?????
Dick.

[big m]

If you are not losing fluid, the master cylinder would be the primary suspect.

---John

[martin59]

Not losing fluid its a brand new master cylinder

[rogerh]

Sorry to say, but if your pedal loses "resistance" over time, the master cylinder is leaking internally. Yes, you have a new one, but I will say it is no good...gert another one..