Master Cylinder
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Joined: Nov 2005
Posts: 557
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St. Jude Donor '06-'07
Master Cylinder
Today I found a leak under my master cylinder: after I changed my brake pads, rotors, brake booster, adjusted the booster rod 6 times, bled the brakes twice and all along it was the master cylinder. 
My question is after I change my master cylinder this should fix my brake problem right? It has to be causing my hard brake pedal since everything else has been changed right?
My question is after I change my master cylinder this should fix my brake problem right? It has to be causing my hard brake pedal since everything else has been changed right?
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
I'll be the first. A hard pedal 90% of the time means a brake booster going south or a vacuum leak going to the booster. You said you changed out the booster. You need to run the test for a booster (check vacuum) or check the vacuum line. Use your factory service manual and follow the steps.
In answer to your question, do I need a master cylinder? When they go south you usually get a soft pedal or it goes all the way to the floor.
Good luck.
In answer to your question, do I need a master cylinder? When they go south you usually get a soft pedal or it goes all the way to the floor.
Good luck.
