Humming noise

[jonathan]

This is very strange. So i was going to replace my cv boot and i taken the car to a mechanic to loosen the axle bolt for me as i couldnt remove it. He just loosened it a bit and i drove 5 mins to home with it loose. There was a lot of humming noise till i arrived. The brake disc became scratched abit and a groove was visible all the way round. Now i changee the boot and i installed everything back correctly and tightened the nut as far as i could. Now when i drive theres a humming noise, i went under the car and i tried to hear where the noise was coming from, if im correct its coming from the inner cv joint, how can this be ? I only touched the outer joint and didnt remove the shaft at all

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[Leo]

Wheel Bearings are extremely sensitive to torque. That axle nut is part of that. They can fail if that nut(axle nut) is to tight or loose. Mine are 190 ft lbs but most are above 160 ft lbs requiring a heavy duty Torque wrench and socket. Good luck my friend.I’d invest in new wheel bearings a torque wrench and socket.

[jonathan]

Thanks for the reply i didnt tighten it up with a torwue wrench, i will go to a shop to tighten it properly today and the wheel bearings are new

[Leo]

🙂 Once you tighen sound will leave I believe, if you have new wheel bearing then all should be well after that point.

[jonathan]

Tightened it noise is still there but i know where the noise is coming from, the brake pads are rubbing on the rust ridge at the edge of the rotor, for an unknown reason and the rotor has a deep score in it

[Author]

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