Whistling noise which gets louder the faster I go

2010 FORD FOCUS
51,500 MILES • 1.6L • 4 CYL • 2WD • MANUAL
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RICHIE HEATH
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Whistling noise which gets louder the faster I go. I can start to hear it at forty mph and then gets louder. It is coming from drivers side vent. The small one near the wing mirror.
Could it be a cabin filter leak or something?
Sep 17, 2016 at 10:42 AM
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SATURNTECH9
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If you open and close the re-circulation door does the noise change?
Sep 17, 2016 at 3:24 PM
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RICHIE HEATH
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Went back out today. I know the sound can sometimes travel funny in cars. So I removed the inner cover to wing mirrors cover. Noise got louder so it look like the air leak is there. Will remove it at work tomorrow. Hoping just a bit of mastic only is needed.
Sep 18, 2016 at 10:56 AM
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SATURNTECH9
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You can try that make sure the mirror is also sitting flush.
Sep 18, 2016 at 10:04 PM