High-pitched whistle from vents - Jeep Forum - Forums and Owners Club
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Old 05-14-2018, 04:56 PM
phoeg phoeg is offline
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Join Date: Oct 2013
Location: Oklahoma City, OK
Gender: Male
Model and Year: 2013 Grd Cher Overland Summit
Color: Maroon
Posts: 8
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Default High-pitched whistle from vents

I couldn't find anything similar to my issue in here so here goes...

I have a 2013 Grand Cherokee Overland Summit which has 99% of the time been great. I love it. However, it did develop a squeak/whistle in the vent system. At first I thought it was the blower motor going with a bad bearing or something. I got down on the passenger floor, removed the glove box and listened. No squeaking from down there with the blower going full tilt. Just a nice whirring sound from the fan. Trying to see if there was anything causing the whistle, I felt around that area. I found the fan, and my fingertips healed very nicely. I didn't lose too much skin. (Think about that for a moment. Yes, I learned a lesson the hard way.)

Anyway, I then thought something was likely stuck in the vents causing a whistle the faster the air moved. I blew air into all the vents with a ShopVac, hoping to dislodge the offending item. It apparently did something because the sound is much quieter now. However, there's still an annoying, but low volume, high-pitched whistle. I tried blowing it out again with no luck.

Any ideas short of taking it to the dealer or risking tearing up the dash myself? I'm not sure how the vents come off so I can get down there.

Thanks for your time.

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