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Old 01-17-2011, 07:23 PM #1
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Master Cylinder noise
When stopped with foot on the brake I hear what can be described as a small motor or vacuum pump running. As soon as the pedal is released the noise stops. Any idea what it might be?
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Old 01-17-2011, 07:53 PM #2
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We have electrically boosted brakes, that is probably what you are hearing....though I have never heard mine.
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Old 01-18-2011, 10:53 AM #3
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Master cylinder noise
Thank you for the feed back, the noise is very subtle, but it is there. If it is an electric boost it makes sense.
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Old 01-18-2011, 12:19 PM #4
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It is the electronic brake booster. Mine does it at start up and every once in a while while stopping/stopped. Dont worry about it. It freaked me out the first time I heard it!
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