Leaking Break Booster

[Brendan Morgan]

I have a leaking brake booster with the air escape from behind the master cylinder on my 2003 ford escape. Please see video through this link and read details below. Feel free to elaborate. Thanks!

About 99% sure it is the seal on the front side of the booster where it connects to Master Break Cylinder and yes i did try to stop it with aluminum tape while i wait for a replacement booster that I have just purchased. So far this is my only serious issue because when idling the RPMs drops and on 2 occasion so far, stalled the engine. I have ordered a replacement booster but would like input from others on diagnosis. See below for more details:

1- Carfaxed the car before I got it and the master cylinder was replaced last year but not the booster. You can see where the old master was leaking onto the front of the booster. i am thinking that the old booster is leaking due to the fluid ruining the seal around the rod.

2- When idling or at a light the rpms have some movement and i keep thinking it is going to stall. I am thinking this because I have read that when idling the car demands more vacuum, true?

3- Brake pedal is not hard to push and if anything it is soft. Also the brake fluid is not leaking. I have been checking the level daily.

Stay Dirty!!!!

Topic

[EricTheCarGuy]

Well done finding the leak. Thanks for the update. In the future, you don’t need to replace wheel cylinders if you break a bleeder off. Just bleed it at the brake like. I’ve done it plenty of times and it works great.

Thanks for the update and for using the ETCG forum.

[Author]

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