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Vacuum leak

This is a discussion on Vacuum leak within the External Engine forums, part of the LSx Technical Help Section category; I recently had a quick diagnostic test on my trans am and it came back as a vacuum leak from ...

  1. #1
    Member blackbird0230's Avatar
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    2002 Trans am WS6 pkg

    Vacuum leak

    I recently had a quick diagnostic test on my trans am and it came back as a vacuum leak from the intake manifold. I was just wondering how serious this leak is. I'd like to get it fixed asap but I know it will be costly.

  2. #2
    Senior Member tatertot91's Avatar
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    Sunset Orange Metalic
    2001 Camaro SS

    The intake manifold isn't that bad to take out. I would check all your hoses and make sure they're all in good shape.

  3. #3
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    vacuum leaks can cause all sorts of driveability issues. Get it fixed soon

  4. #4
    Member blackbird0230's Avatar
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    Quote Originally Posted by Cutlass View Post
    vacuum leaks can cause all sorts of driveability issues. Get it fixed soon
    Like what?
    I noticed my car smokes a little.
    I did a full exhaust swap (no cats). LT headers. Ngk tr55 spark plugs and I figured it was probably beacuse of that.

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