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Thread: Where would there be a vacuum leak in the brake system?

  1. #1
    Senior Member
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    Where would there be a vacuum leak in the brake system?

    I am thinking that I have a vacuum leak when I press the brakes. Where would it leak from? Where can I check?

    The engine idles rough when I have the brakes pressed on.

  2. #2
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    I believe you have a defective brake booster.

    If you notice change on engine RPM when you hit the brake, then no doubt you have a bad brake booster.


    LEVY
    I would work extra hard at whatever I was doing to become so good at it and that I would never have to kiss anyone's fanny to keep my job. And I never have and I never will.

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  3. #3
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    Quote Originally Posted by LEVY View Post
    I believe you have a defective brake booster.

    If you notice change on engine RPM when you hit the brake, then no doubt you have a bad brake booster.


    LEVY
    Where is the brake booster?

  4. #4
    DMCTalk.org's #2 Mike C.'s Avatar
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    Quote Originally Posted by rothsean View Post
    Where is the brake booster?
    Open your trunk, remove your carpet.

    Remove the access panel for your brake fluid reservoir. At the back of the reservoir, you will see a biiig round thing that the brake master cylinder bolts to... That be your brake booster. Looks like a big black puck.
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    DMC Midwest - 815.459.6439 DMCMW Dave's Avatar
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