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I bought Scion Im in november 2016 , since day one i m having issue with Mpg than i noticed a sound coming from wind shield and now after just 4000 mileage i notice a Tic Tic kinda sound coming from steering ( driving wheel ) , This is my first car i ever owned and i m having issue in that:crying:
 

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Maybe record teh sound if you can as proof that there is a problem.
That along with taking note of under what conditions do you hear those noises since it helps the techs to spot the issue right away than to get in the vehicle and say they don't hear it.
 

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Not my car, I just found that video when I was looking to see if anyone else had my dash rattles. Ask the uploader, I wouldn't know.
 

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I bought Scion Im in november 2016 , since day one i m having issue with Mpg than i noticed a sound coming from wind shield and now after just 4000 mileage i notice a Tic Tic kinda sound coming from steering ( driving wheel ) , This is my first car i ever owned and i m having issue in that:crying:
I believe that the whisteling noise is coming from the vortex creator right where the side mirrors are. Its like a capsule sticking out.
 

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I think something as simple as cleaning that area and going over it with a clay bar, then finishing it off by waxing will go a long way in reducing that sound. Just something to try which won't cost much. It allows for air to pass by without resistance.
 

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I think something as simple as cleaning that area and going over it with a clay bar, then finishing it off by waxing will go a long way in reducing that sound. Just something to try which won't cost much. It allows for air to pass by without resistance.
You can just actually cover the vortex pill with a piece of cardboard and a tape and drive it... Simple:)
 

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I did further research and found out that the latest generation corollas are are also experiencing this whistle noise also and noticed that the corollas also have these vtex pills. I made a card board cut-out (as seen on picture) to cover these vortex pills and sealed it with tape. I drove it on the freeway and no more whistle noise... I know its not the proper solution but I believe this is where the sound coming from.

Also, this is the case for my car that I tested. Not sure if results will be the same for others.

(I know I took a picture of passenger side but I covered both sides)
 

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