What does it mean when the wheel bearings need to be pressed?

2009 KIA RIO
160,000 MILES • 0.5L • 4 CYL
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SUSANRENEEA
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My son changed my wheel bearing on front driver's side do they need to be pressed? What exactly does that mean? It's making kind of a whirling noise now?
May 6, 2023 at 2:27 PM
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STRAILER
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Yep, this is common, here is a video of the job being done on a similar car so you can see what he is talking about also I have included the instructions for your car in the images below.

https://youtu.be/_FzmmBoa4Tg

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
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May 7, 2023 at 10:38 AM