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
  • MEMBER
  • 4 POSTS
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 7:27 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,676 POSTS
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

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May 7, 2023 at 3:38 AM
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