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no need to replace wheel bearing unless the wheel bearing is worn out
It will be noisy, squeaking or squealing coming from the trans, and you may feel roughness or vibration through the clutch pedal when holding it in, it may also give you a little extra resistance when pushed.
a humming sound usually heard on cornering, if heard when going left, its the right bearing and vice versa
Worn out main bearings, PCV valve not working. If it is a straight stick then the thrust bearing on the crankshaft may also be worn out letting the crank move in and out.
If you are talking about the crankshaft then the thrust bearing main cap is trashed. Crank may be worn too. Time for a crank kit / rebuild job if you do it right.
Sounds like the thrust bearing is worn, gearbox out to change this, may as well change clutch at same time.
More than likely a worn out thrust bearing. Check your engine against specs.
a
not advised
a worn out bearing affects the current in a governing set because it creats a hole hence discontinuity.
Break shoes or pads worn out, or a defective wheel bearing. Have this repaired ASAP.Break shoes or pads worn out, or a defective wheel bearing. Have this repaired ASAP.
Assuming your serpentine belt is in good condition... the bearing of pulley could be making noise (or bearing could fail allowing you to jiggle pulley with your hand), and/or tensioner spring is worn out.