2008 Scion xD


stella parkin

December, 5, 2010 AT 1:17 AM

My car makes a whistling sound, sometimes; but only when I am NOT appling the breaks. What could this be?

1 Answer



December, 5, 2010 AT 3:37 AM

Check that the vacuum booster is not leaking, and check for any other vacuum leaks as a whistle is normally a vacuum leak problem.

Mark (mhpautos)

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