Ok, this one I don't have an answer for... Suspension...

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Ok, this one I don't have an answer for... Suspension...

Postby Chevette Girl » 04 Sep 2006, 21:54

I noticed a couple weeks ago that my precious Beast was making excess road noise (it's not a grinding, not a whirring, not a whistle, just noise) once I hit around 70 km/h. About a week after it started that, I was going around some curves and noticed an additional grinding/vibration that got worse to the left and better to the right... Then it went the other way, better to the left. :shock:

It always gets better with the wheel aimed one way and worse the other, but it keeps switching! At first I thought it was just me, but I started paying closer attention, and sometimes it's worse to the left, sometimes it's better... and I have no idea what triggers it to switch... :?

So I took her to the vet, and my mechanic sent her home telling me to stop listening to my car, saying that the squeak I'd noticed was in the driver's side control arm,but there was no play in it. And he felt/heard the vibration/noise when he test-drove it but checked everything and couldn't find anything wrong, he adjusted and tightened up the brake pads and didn't charge me.

It's not a wheel bearing, it's not loose brakes, anyone got any ideas what it might be?

It's not acting the same way as when the hanger bearing went (gone thu two or three now, it felt and sounded like driving on a gravel road even though I was on pavement, my current one makes the rear end wiggle a little at low speeds but it's always done that), it doesn't feel like the ball joints (that's more of an occasional change in tension in the steering wheel while going around curves or now and then feeling like the car's been buffeted by strong wind except it's a calm day), and I can't see how the rear differential having water in its fluid could cause what feels like a front-end vibration that can't make up its mind which way it's worse...(yeah, I'll get that looked at too, I just didn't want to pay the oil change place I use $80 to do something I can do in half an hour in my driveway for $20 :roll: )
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Postby Doive » 04 Sep 2006, 22:33

Hmmm. And more hmmm.

Does it stop/ease when you brake? I had a strange clunking/grinding/baning noise from the front of my car, which went away when I braked. Thus I surmised it may well be brake related. I took the stub axle apart in my uni car park (the joys of carrying my workshop with me), and found that the brake disc had started to come loose from the hub. Tightened up the four bolts to get me home, then disassembled and reassembled with lots of locking fluid. No problems since.

Aside from that, I can't help. Could it be a worn bush anywhere?
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Postby Chevette Girl » 05 Sep 2006, 03:04

I'm not sure where to start looking for a worn bushing... But when my mechanic tells me he adjusted the brakes, I trust him, and they did stop squeaking (they're relatively new so I knew that squeak wasn't the wear indicators or anything, it would only happen when I was light on the brakes). The vibration isn't usually noticeable at lower speeds unless I'm braking, I think... I'll play with it a little more tomorrow... :P silly damn car, my horse finally stops worrying me (unexplained unevenness in her gait) and now the car starts... :roll:
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Postby Chevette Girl » 13 Sep 2006, 03:50

Friend of mine suggested the universal joint, which might explain how it switches sides, depending on which way it happens to be spinning out of round... anyone else ever have that go?
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Postby CancerWagon » 14 Sep 2006, 00:29

I really doubt that a universal joint (drive/propshaft) would cause anything more than a vibration. Unless it's really gone for lunch. However they won't have much of an eccentracy for making more noise on corners, but rather high speeds with little torque applied. :? not sure what to suggest.

Check it out though, a bad universal can leave you stranded and / or with alot of undercarrage damage.
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Postby UpNorth » 14 Sep 2006, 06:23

Leave it until it gets worse & thus more obvious what the problem is.
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Postby shuvit-tim » 14 Sep 2006, 22:42

my first thought was wheel bearing, but you say it's not that.
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Postby Chevette Girl » 16 Sep 2006, 15:55

My gas guy pretty much told me to wait till it got worse :) And since my mechanic told me to stop listening to my car, I'm presuming he meant the same thing... Due for an oil change in a thousand klicks, I'll take it to him for another checkup...

I'm told that wheel bearings make noise at all speeds when they go, it was my first suspicion too but it's been checked.... I would also have expected a wheel bearing to make the rim heat up at least a little, so I checked for the first week I noticed it, right when I parked the car and then a little later so heat would have time to travel in case the air from driving was cooling things off again.

I kinda doubt it's the u-joint too, the hanger bearing prevents the kind of eccentricity my friend had described... his car is normal and just has a driveshaft... :P
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