The Motor Forum

PhilD · Running In Joined: 10 Jan 2007 Posts: 406

I posted a couple of months ago about a problem with my Grande Punto popping up days after the warranty expired, well now I think there is another more serious and potentially costly one.

There is a deep bassy droning noise that gets worse (louder) with road speed. I've played about with different speeds and throttle openings and it's defo road speed related.

It's the 1.9 Turbo diesel.

Any ideas?

SambaFi · Posted: Sun Oct 25, 2009 9:41 pm Post subject:

Possibly the differential.

Blarno · Posted: Sun Oct 25, 2009 9:55 pm Post subject:

Bearings. Does it relent or worsen when cornering?
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Roadrunner · Posted: Sun Oct 25, 2009 10:23 pm Post subject:

PhilD · Running In Joined: 10 Jan 2007 Posts: 406

Aha, just looked at the advisory notice I got after the service and both off and near side rear wheel bearings have "slight play" would this cause the noise and what's the fix?

I was promised a call back with quotes for the work needed (new tyres and front brakes aswell) but still waiting...

Also car was fine before the service!?

Mark · Posted: Sun Oct 25, 2009 11:43 pm Post subject:

SpecB · Posted: Sun Oct 25, 2009 11:47 pm Post subject:

My Clio used to chew through bearings every 12k miles or so. You are not running aftermarket alloys or non-standard wheel sizes because that can make bearings fail faster.

Get them changed all the same. They are not expensive.
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Mark

DaveGibson · Posted: Sun Oct 25, 2009 11:54 pm Post subject:

I don't know how many miles it's done (presumably in three years) but the most likely cause, bearing failure, seems a bit premature, unless, of course, during its servicing, the bearings have been overtightened to get rid of the play.

PhilD · Running In Joined: 10 Jan 2007 Posts: 406

Matt · Posted: Mon Oct 26, 2009 1:09 am Post subject:

The Astra seems to have started the bearing sound, so yet more expense come February. The only upside is the exhaust has been an advisory the last two years and its outer shell came off a few weeks back, so I can get a stainless custom made

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Skyhook · Posted: Mon Oct 26, 2009 1:32 am Post subject:

Try a search here, there may be something -

http://www.fiatforum.com/grande-punto/

I'm only on the Panda board but the people there are a pretty friendly, helpful bunch - so hopefully it's the same on the Punto board.
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TimR · Posted: Mon Oct 26, 2009 11:15 am Post subject:

I thought the front bearings were going on the Fiat but the noise seems to have mostly gone away with the change to new front tyres.

No doubt another new, strange noise will be along soon to top up my paranoia.

Boxer6 · Posted: Mon Oct 26, 2009 2:06 pm Post subject:

TimR · Posted: Mon Oct 26, 2009 2:08 pm Post subject:

Won't wheel bearings take a pounding from shite roads and speedbumps?

It can't just be the suspension that gets damaged when you hit a pothole hard enough.

PhilD · Running In Joined: 10 Jan 2007 Posts: 406

DaveGibson · Posted: Mon Oct 26, 2009 2:26 pm Post subject:

Jasper · Posted: Mon Oct 26, 2009 3:11 pm Post subject:

TimR · Posted: Mon Oct 26, 2009 3:24 pm Post subject: