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Old 03-22-2004, 01:49 PM   #1
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Default strange noise - need help diagnosing

Several weeks ago I noticed what sounded like a tire noise on my '92 SSE */c so I took the car in and got 2 new tires to replace the 2 that needed replacing anyway. Now I have 2 brand new tires and 2 almost new tires, all of which are Kelly Navigator Platinums, P225/60R16, but unfortunately the noise is still there. It'* hard to hear, but can most easily be heard from roughly 20-45 MPH, but only with the windows closed because the noise isn't loud enough to hear when there'* outside traffic or road noise.

The noise is kinda like a hhh-hhh-hhh noise that varies in frequency (but not intensity) with speed, and doesn't change around turns or when braking. The noise occurs when coasting in neutral too. There'* no squeaking, humming, clunking, thumping, vibration, shuddering, or any other symptoms while driving, turning, or braking, and I can't feel any vibration.

Since the noise sounds like it'* coming from the rear, I took the car in again and asked them to put the rear tires on the front. I took it for a test drive, but to my surprise the noise still sounds like it'* coming from the rear, so although the 2 slightly older front tires seem to have a little scalloping on the outer treads, this can't logically be the cause of the rear noise, right? The slightly scalloped tires are now on the front, and the noise still sounds like it'* coming from the rear.

So I asked them to check the rear drums, the rear bearings, and the front CV boots and joints. They said everything was ok except the struts and shocks, so I had them replace the front struts with KYB GR2s and replaced the rear air shocks with Monroe air shocks. They said the noise I reported is 'probably' gone but there'* a little bit of tire noise and the 2 front tires should be replaced. I wasn't about to spend another $250 to replace 2 tires that only have a few thousand miles on them, so I paid the bill and left.

I drove the car home, and guess what? That noise is STILL THERE! I knew this was going to happen, and I've spent several hundred dollars and it didn't change anything!

Do any of you experts have any ideas?
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Old 03-22-2004, 02:00 PM   #2
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Wheel bearing.
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Old 03-22-2004, 02:29 PM   #3
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Quote:
Originally Posted by Foghorn
Wheel bearing.
Exactly my thoughts.
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Old 03-22-2004, 03:27 PM   #4
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Quote:
Originally Posted by BonneMeMN
Quote:
Originally Posted by Foghorn
Wheel bearing.
Exactly my thoughts.
Yes, jack up the back of the car yourself, in your own garage (or borrow somebody else'* for an hour). Spin each rear wheel by hand and compare. If one is noticeably noisier than the other, you've found your culprit.

Do this in a quiet garage; you may not hear much of anything if you're trying to do this outside.
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Old 04-16-2004, 07:44 PM   #5
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when you are coasting in Neutral, apply the brakes gently. Does the noise go away?
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Old 04-16-2004, 11:15 PM   #6
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Yup, sounds like bearings, but at least you have new struts/shocks now Good luck getting rid of that noise.
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Old 04-17-2004, 02:40 PM   #7
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My car seems to exhibit this when going slow and turning Coming from the front.

Same thing?
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Old 04-21-2004, 02:26 AM   #8
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Quote:
Originally Posted by repinS
My car seems to exhibit this when going slow and turning Coming from the front.

Same thing?
It'* actually wheel hubs on the back, but bearings/hubs usually hum... is it a slightly high pitched noise that comes around at a certain point when the tire turns? my 95 sounded like an airplane for a while a long time ago...Nice that the shop milked you for all that though... Jim and I were discussing something similar the other day...

Repin...does your car hum or make the same noise as this one? what sorts of noise does it make when turning? Just don't take it in to a shop and have them tell you that you need $1200 of wheel bearings strust bearings and strut mounts...just to find out it'* a $60 clear as daylight broken spring... :P
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