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Rumbling that I can't put my finger on

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Old Mar 23rd, 2019, 21:00   #1
V50 Craig
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Default Rumbling that I can't put my finger on

Hey everyone, Hopefully you guys can help.

The car has developed a fault. From 20mph and above I get a rumbling from the front, it gets louder when turning right and goes quieter when turning left. I initially thought tires as it had some cheap worn tires on there when I bought the car in November. Fitted a pair of Goodyears and had the tracking and balancing done a few weeks back but the noise was still there. Next thing I thought was wheel bearing. Today I've had new disks and pads on the front (unrelated) and both front wheel bearings changed, and again the tracking and balancing done.....the noise is still there!!! The garage have had a look after changing everything and said on the face of it everything underneath seems tight and in good condition.

Any ideas what could be causing this as I want to try and exhaust all of the "cheaper" fixes before i start replacing more expensive parts. Could this be a driveshaft? Or a worn hub? Or something cheap and easy that i haven't considered?

It's a 2008 v50 2.0d.

Thanks in advance, Craig
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Old Mar 23rd, 2019, 21:10   #2
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Sounds like you have tackled most of the common causes, I too have a rumbling sound on mine from the N/S front, though its more noticeable higher speed. No vibrations in the cabin though (I did have, and that was the front discs, which I replaced).

When my O/S drive shaft went, it was more noticeable because I had lots of vibrations, not sure if the sound might just be its on its way out though? Have you checked for play / boot condition on the driveshaft?

I have also got wider wheels / tyres on the car now, and I feel like road noise is lots louder.
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Old Mar 23rd, 2019, 21:33   #3
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Quote:
Originally Posted by philrocks View Post
Sounds like you have tackled most of the common causes, I too have a rumbling sound on mine from the N/S front, though its more noticeable higher speed. No vibrations in the cabin though (I did have, and that was the front discs, which I replaced).

When my O/S drive shaft went, it was more noticeable because I had lots of vibrations, not sure if the sound might just be its on its way out though? Have you checked for play / boot condition on the driveshaft?

I have also got wider wheels / tyres on the car now, and I feel like road noise is lots louder.
I've done what the garage have and have given the driveshafts a visual inspection and the shafts and boots seem in tidy condition. I get sound but no noticeable vibration in the wheel or pedals, and similarly it gets quite droney and loud on the motorway (more tiresome than anything else). The driveshaft isn't a massively expensive part so will have to try that next I think and see if that solves it!
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Old Mar 24th, 2019, 09:38   #4
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Sorry,. Accidental double post...

Last edited by hoks; Mar 24th, 2019 at 09:54.
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Old Mar 24th, 2019, 09:53   #5
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Could be a front wheel bearing hub.
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Old Mar 24th, 2019, 10:29   #6
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I have the exact same issue on mine, it is noticeably from the nearside front and when turning right. I have a C70 with Powershift box. What box is in yours out of interest??

I am going to change all my shocks and top mounts soon and have a good look to see if I can identify the cause of the noise.

A part of me is wondering if the top mount bearing has worn sufficiently that it is causing a rumble when that shock is loaded (nearside shock).

Incidentally I have changed discs and pads all round and the wishbone on the nearside front too.

I will update here if and when I solve it. I would appreciate if you would too.
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Old Mar 24th, 2019, 18:19   #7
V50 Craig
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Quote:
Originally Posted by Slackey View Post
I have the exact same issue on mine, it is noticeably from the nearside front and when turning right. I have a C70 with Powershift box. What box is in yours out of interest??

I am going to change all my shocks and top mounts soon and have a good look to see if I can identify the cause of the noise.

A part of me is wondering if the top mount bearing has worn sufficiently that it is causing a rumble when that shock is loaded (nearside shock).

Incidentally I have changed discs and pads all round and the wishbone on the nearside front too.

I will update here if and when I solve it. I would appreciate if you would too.
Yeah I will definitely keep you updated. The box is a standard 6 speed manual in mine. A friend of mine who fiddles with cars is straying towards the hub being at fault as he said you'd probably feel vibrations in the steering wheel or pedals with a drive shaft.

Its going in for another look weekend after next so will update as we go!
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Old Mar 24th, 2019, 18:20   #8
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Quote:
Originally Posted by hoks View Post
Could be a front wheel bearing hub.
Yeah this is what we're going to look at as he has a spare hub to try
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Old Mar 25th, 2019, 12:05   #9
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Quote:
Originally Posted by Slackey View Post
I have the exact same issue on mine, it is noticeably from the nearside front and when turning right. I have a C70 with Powershift box. What box is in yours out of interest??

I am going to change all my shocks and top mounts soon and have a good look to see if I can identify the cause of the noise.

A part of me is wondering if the top mount bearing has worn sufficiently that it is causing a rumble when that shock is loaded (nearside shock).

Incidentally I have changed discs and pads all round and the wishbone on the nearside front too.

I will update here if and when I solve it. I would appreciate if you would too.
Same problem. Garage say diff in the PS box, gearbox shop say bearing. Haven't changed bearing yet (money and time) but clearly if it's not that then car is scrap if diff.
Not sure if it could be gearbox related on manual.
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Old Mar 26th, 2019, 00:13   #10
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Turned out to be tyres on mine had this issue a couple of times even replaced front wheel bearings I use Pirelli p7 18inch next time around I'll be trying a diff brand
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