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Noise from the brake fluid reservoir

This is a discussion on Noise from the brake fluid reservoir within the Firebird / WS6 forums, part of the Vehicle Specific category; I noticed when I lift the hood after I stopped the car that there was a fizzing sound from the ...

  1. #1
    Junior Member
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    Trans am 99

    Noise from the brake fluid reservoir

    I noticed when I lift the hood after I stopped the car that there was a fizzing sound from the brake fluid reservoir and that it was wet on the outside. The fluid didn't look dark or anything but could it be time to change it anyway. It was some years ago I did it, but I haven't driven it to much so it would be because of time in that case, or could it be something else?

  2. #2
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    pajeff02's Avatar
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    '02 WS.6 / '07 Suburban

    That's odd. Is the lid fully seated and the gasket in place?

  3. #3
    Former Mopar Man 2002ssslp's Avatar
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    02 Camaro SS, 04 GTO

    I feel you have a vacuum leak somewhere near the master cylinder. The MC is void of any consistent air pressure that would cause the "Fizzing" sound you are talking about. You probably had some fluid drip on a vacuum line with a slight leak. Clean up the area with break clean, be careful, and then use a spray bottle with soapy water to find the leak. If that does not do the trick then break out the smoke. Good luck.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

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