I have a Nissan FB 15 car. Today I can hear some humming sound from the front of the car. I'm not sure whether it comes from the engine or wheels. It's happening all the time. But when I increase the speed, the humming sound occurs more. But when I break, humming sound stops. Is it coming from hub razor? To solve this problem what should I do?
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To determine whether it's coming from the hub (and on which side), shift into neutral and lift the front of the car. (Set the parking brake and block the wheels very well!) Spin the wheel rapidly with your hand. You should be able to hear the same noise.
To repair, usually you replace the hub. It is possible to repair a hub by repacking the bearings, but it might be a bit much for DIY.