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Kent: Whatâ€™s The Flapping Sound Coming From Your 2017 Nissan Sentra?
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(Posted on Jan 14, 2019 at 06:34PM by Robert Bacon)

Hi Robert,

I recently purchased a 2017 Nissan Sentra but noticed a flapping sound coming from the air conditioning unit. I only hear it whenÂ the system is on: do you have any idea what could be causing this?

Thanks,
Anna

Hi, Anna!

Congratulations on your latest purchase, the 2017 Nissan Sentra is a great vehicle. Hearing a flapping or slapping sound coming from the air conditioning unit is a common automotive issue and nothing to be concerned about.

The cause of this problem is almost certainly a worn out ventilation flap. Once this piece becomes loose, it starts to make a slapping sound whenever you use the air conditioning system.

Your A/C probably isn't as consistent or strong as it once was but, apart from this, it won't cause your vehicle any other problems. It's likely that you'll be more annoyed by the slapping noise than you are by the slightly reduced airflow.

My advice is to call into our Service Department at your earliest convenience and let the Technicians inspect your Sentra.

Thanks for the question, Anna! Donâ€™t hesitate to contact Kirkland Nissan, Washington again if you need anything else.