metallic "hum" or "whine" - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

adey · 10-05-2002, 11:57 AM

I get a high pitched metallic "whine" occasionally when I'm going at slow speeds (up to about 45mph) from my front driver's side wheel well... also coming from this wheel well is a 'grinding' or 'scraping' noise under moderate braking.

At first, I thought this might be my brakes, but now, i'm led to believe that it's more likely to be my wheel bearings.
Is there any way I can check, and if possible fix, this at home using basic hand tools?

Or is it probably just my brakes? I don't seem to feel anything out of the ordinary when I brake hard, although the sound is somewhat worrying.

mbmbmb23 · 10-06-2002, 08:33 AM

Hmmm...how slow can you go and still have it do this?  What I would do if it were me is to put the front of the car on jack stands....and take the wheel off.....then spin the rotor/hub with your hand and have someone hit the brakes (hit the brakes at varying firmness levels) while you are spinning it.  OR....if you have a mechanic friend...have him take a spin in your car with you riding shotgun...and let him tell you what he thinks.

-m

adey · 10-07-2002, 08:58 AM

it'll start doing this at around 10mph (possibly slower, but I think it starts around here) and goes away by the time I hit 35 or 40.  

I'll try your trick tonight or tomorrow night when I'm installing my new brake components.
Thanks for the suggestion!

10-06-2002, 08:33 AM	#2
mbmbmb23 Zilvia Contributor Join Date: Oct 2001 Location: Charlotte, NC. Posts: 1,776 Trader Rating: (1) Rides Gallery: mbmbmb23 Feedback Score: 1 reviews	Hmmm...how slow can you go and still have it do this?  What I would do if it were me is to put the front of the car on jack stands....and take the wheel off.....then spin the rotor/hub with your hand and have someone hit the brakes (hit the brakes at varying firmness levels) while you are spinning it.  OR....if you have a mechanic friend...have him take a spin in your car with you riding shotgun...and let him tell you what he thinks. -m __________________ 400x200

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10-05-2002, 11:57 AM	#1
adey Post Whore! Join Date: Mar 2002 Location: Hong Kong Posts: 3,061 Trader Rating: (0) Feedback Score: 0 reviews	I get a high pitched metallic "whine" occasionally when I'm going at slow speeds (up to about 45mph) from my front driver's side wheel well... also coming from this wheel well is a 'grinding' or 'scraping' noise under moderate braking. At first, I thought this might be my brakes, but now, i'm led to believe that it's more likely to be my wheel bearings. Is there any way I can check, and if possible fix, this at home using basic hand tools? Or is it probably just my brakes? I don't seem to feel anything out of the ordinary when I brake hard, although the sound is somewhat worrying.

10-07-2002, 08:58 AM	#3
adey Post Whore! Join Date: Mar 2002 Location: Hong Kong Posts: 3,061 Trader Rating: (0) Feedback Score: 0 reviews	it'll start doing this at around 10mph (possibly slower, but I think it starts around here) and goes away by the time I hit 35 or 40.   I'll try your trick tonight or tomorrow night when I'm installing my new brake components. Thanks for the suggestion!