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Prerunner1982 · 02-25-2008, 05:33 PM

After discussing the problem with my father in law that is what we came up with as well.

With the vehicle off not enough pressure is provided to force fluid past the seals.

With the vehicle on, and with the assistance of the booster there is enough pressure to force the fluid past the seals.

Once I thought about it I realized with the vehicle on the master cylinder sounded like it was aggitating the fluid rather than compressing it. I did not hear this sound with the vehicle off.

It makes sense... Thanks.

02-25-2008, 05:33 PM	#3
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,906	Re: brake pedal to the floor. After discussing the problem with my father in law that is what we came up with as well. With the vehicle off not enough pressure is provided to force fluid past the seals. With the vehicle on, and with the assistance of the booster there is enough pressure to force the fluid past the seals. Once I thought about it I realized with the vehicle on the master cylinder sounded like it was aggitating the fluid rather than compressing it. I did not hear this sound with the vehicle off. It makes sense... Thanks. __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call Last edited by Prerunner1982; 02-25-2008 at 05:34 PM.