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Thread: 2nd attempt: Low pitched noise/rumble from rear end

  
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    2nd attempt: Low pitched noise/rumble from rear end

    Hi, I'm new!
    I have a 2001 registered Astra club estate - 89,000 mlies, 1.6, petrol. New tyres, steering is Ok, car drives well without problems. BUT, there is a low pitched noise/rumble coming from the back. My local garage can't find anything visually amiss - wheel bearing are OK, he says. Thanks and appreciated. I posted this yesterday as well but can't find it!

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    I presume that the noise only occurs when the car is in motion? Does the pitch change the faster you go or is it constant?
    I have only two theories to offer, one is that one of the wheel bearings is on its way out, but since there is no play in it, its fine for the moment, or it is road noise from the rear tyres
    Probably the ONLY Astra Mk3 sitting on Corsa D SXI rims!
    And Now a Diesel on Discs all round!

    http://www.astraownersclub.com/vb/sh...d.php?t=162503

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    i had this on my vectra sri the rear shocks were worn and sent tryres slightly out of shape to prove this i borrowed some wheels changed them and all was ok new tyres and shocks try it if you can borrow some

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    Thanks Turboshed and sxigav, I had the noise before I had the new tyres. There was odd wear on one rear tyre. Can shock absorbers be checked, can a visual check for wear be done?
    Thanks again

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    Wheel bearings are easy to check, jack the rear of the car, spin a wheel. If it feels rough in any way then the bearing is shot. They can rumble even with minimal waer on the bearings, mine rumbled on for months before they got bad enough to replace.

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    Thanks 'nry', the garage bloke who's looked at it said there was no wear on the bearings, but what you say is very interesting . . .

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    mine had odd wear and the inside tyre wall had a small bulge in it that was result from knackered shocks and they werent leaking looked new had them changed and was ok ,another one was the actual tread pattern that can make a noise which is heard more if you got poor boot seal just some things i was told by mate he was vaux tech for 10 years

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    How do you get tyre wear from knackered shocks? Faulty tyres can make wierd noises though, had that problem a few times with my car.

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    Sorry to bore you all with this problem - but wouldn't 'knackered shocks' give a rough ride? Let me add, I'm a total moron when it comes to car mechanics . . .
    Thanks, chaps.

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    worn shocks would give a bumpy, uneven and soggy ride and for Nry tyre wear from worn shocks resluts from the absorber being unable to hold the suspension arm that it is attached to in place correctly so you get a slight bouncing effect from the tyre contacting with the road surface and this can show up as worn patches on the tyre which can cause ovaling of the tyre casing, i work at Pirelli and have seem this a few times where customers blame the tyres but it actually upon checking turns out to be worn suspension parts.

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