Mechanics

CHEVY DASH BOARD VENTS

1999 Chevrolet S-10

Interior problem
1999 Chevy S-10 6 cyl Two Wheel Drive Automatic 275000 miles

air in coming out of the vents, without the controls turned on
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Redhead64
October 13, 2009.




I believe you are looking for a vacuum leak in this situation. The vents are actuated by vacuum and if thre is a leak, all types of things can happen.



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