Bearing hub humming noise?

2004 FORD EXPLORER
101,000 MILES • 6 CYL • 4WD • AUTOMATIC
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STEVE112243
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I have a loud humming sound seems to be coming from front end checked fluid was ok front differential was pretty low filled the other day never put in four wheel drive so im not sure if a problem can be created from that its pretty steady hum loud at 30 45 mph though changes a lil when turning thought it was a wheel bearing i dont know is the a bearing where the cv meets the axle shaft?
Oct 24, 2010 at 8:25 PM
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KASEKENNY
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This is most likely a wheel bearing. I am attaching the info on this but here is a guide that will help with this issue:

https://www.2carpros.com/articles/car-howling-noise

https://www.2carpros.com/articles/whirring-sound

I suspect you are going to have to replace the bearings so here is the info from the manual on how to replace these bearings:

https://www.2carpros.com/articles/bearing-hub-replacement

Please run through this info and let us know if you have questions on this. Thanks
Jul 13, 2021 at 3:32 PM