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Smoke Out Exhaust

This is a discussion on Smoke Out Exhaust within the General Help forums, part of the LSx Technical Help Section category; Ive been getting a decent amount of smoke out my exhaust under hard accereration when shifting between first and second ...

  1. #1
    Junior Member 00\/\/S6's Avatar
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    2000 WS6/1999 Silverado Z

    Smoke Out Exhaust

    Ive been getting a decent amount of smoke out my exhaust under hard accereration when shifting between first and second gear....smoke almost seems to be a brown color. It just happens between shifts that I can see. Any ideas?
    SLP Lid / Loudmouth / UMI SFC's, LCA's, and Panhard Bar / !CAGS / Short throw...I need more power!

  2. #2
    Senior Member ss~zoso~ss's Avatar
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    SS: NBM, tan top
    1998-SS, 2010 Jetta TDI

    if its brown it must be rust or something, no fluid would produce brown smoke

  3. #3
    Senior Member ss~zoso~ss's Avatar
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    SS: NBM, tan top
    1998-SS, 2010 Jetta TDI

    when you shift do you let off the gas or speed shift, it could be running rich but that would be deff. black smoke

  4. #4
    Junior Member 00\/\/S6's Avatar
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    I let off the gas.....normal, but hard shifting

  5. #5
    Junior Member 00\/\/S6's Avatar
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    Is black from running rich?

  6. #6
    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
    01 SS

    Yepp black somke is from running rich... Any mods done?
    White smoke is burning coolant/oil etc.
    Brown= new one too me
    J
    2001 SS, Its not the car its the Driver that matters....

  7. #7
    Junior Member 00\/\/S6's Avatar
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    problem solved..............after gm put the new cat on, it stopped

  8. #8
    Senior Member Redphoenix1998's Avatar
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    Red
    1998 Pontiac Trans Am

    clogged cat, that's what it sounded like

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