Mechanics

NOSIES

2008 Scion xD • 4 cylinder 2WD Automatic • 48,000 miles

My car makes a whistling sound, sometimes; but only when I am NOT appling the breaks. What could this be?
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Stella parkin
December 5, 2010.



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)

Mhpautos
Dec 5, 2010.