QUOTE(clockpulses @ Jan 19 2021, 11:17 PM)
So your bearing produce any humming sound at high speed?
I got this kruk krak sound on left side on uneven road and kuk soubd from right side after bump, both from front, don't think it is steering rack too, either the bearing or the brake pad clip or both. Weird thing is my last workshop can't find or the source of the issue, they said not bearing either. Also no humming sound at high speed, or maybe got lah but very minor
The reason why my wheel bearings does not present with the usual grinding/humming noise is because the bearings only started to become bad. I detected it too early. When the mechanic took the bearings out, they were mostly intact, only the grease has totally gone and dried out.
Here I diagnose the bearing problem: Jack up the front wheel(s). For regular auto transmission can jack only one side no problem, for CVT cannot. Not sure for manual. So preferably both front wheels. For 4WD probably need to jack all wheels.
Start the engine, put the car into drive with both front wheel above the ground. Then visually inspect the wheels. Look for abnormal rotation or something. For my car, the wheel can be seen clearly have some side to side movement which causes the clinking noise. And then finally, grab the springs on your suspension. If your bearings is bad, you can feel rough vibration traveling through the springs. It is unmistakable. It feels like rolling a piece of metal on fine sand.
Make sure to hit the brakes first or put the car into N and let the wheels stop before turning off the engine. Don't be like me who immediately shift to P when the wheels are moving.
Another thing I learn is that you can never really tell from which side the abnormal noise is coming from. Don't rely on cabin noise when driving because noise is vibration and vibration travels throughout the body of car.
This post has been edited by Steponlego: Jan 19 2021, 11:41 PM