 | Home > Puma (Tdci) > Wheel bearing collapse noise? |
 
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189   
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Hi guys
My 2011 defender 90 2.4 with abs & traction control has a wheel bearing crunching noise from the rear drivers side wheel. Ive checked for play, nothing, held brake on and nothing. Knock it to neutral and the noise stops. Any ideas on what is / stop it? Its driving me round the bend! Cheers |
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9th Apr 2014 11:18am |
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| Happyoldgit Member Since: 14 Sep 2007 Location: Norfolk Posts: 3471 
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So it's only doing it under power, if so I'd start at the back and work forward - ie check prop and halfshafts, diff, transmission brake and then onto the transmission itself. Steve.
Owned numerous Land Rover vehicles of all shapes and sizes over the decades. Current Defender: A non tarts hand-bagged Puma 110 XS USW. [Insert something impressive here such as extensive list of previous Land Rovers or examples of your prestigeous and expensive items, trinkets, houses, bikes, vehicles etc] http://forums.lr4x4.com I used to be Miserable ...but now I'm ecstatic. |
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9th Apr 2014 11:36am |
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189
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It's definitely coming from the wheel brake calliper area. Only when in drive. Forward or reverse. I'm thinking it's spmething to do with traction control but wondered if anyone else has come across it?
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9th Apr 2014 11:41am |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443  
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I have a rear prop UJ gone, when I first heard the metallic crackling I was sure it was a wheel bearing/CV joint on the OSF wheel
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9th Apr 2014 11:49am |
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189
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Have greased props and they were in good nic.
My 110 had uj go and squealed and that was when it coasted too |
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9th Apr 2014 11:51am |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347 
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Not a stone in the caliper is it?
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9th Apr 2014 2:25pm |
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189
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Thanks for your concern Blackwolf. I'm not insisting it's the wheel bearing, as title suggests... Wheel bearing collapsed noise. I'm saying it's definitely from that wheel. I've checked the bearing as previously stated and all is well.
There's no stone lodged either. The sound is similar to that of a roulette with the ball in play if that makes sense. And it's only happens when drive is engaged. Freewheeling in neutral does not generate the sound. I've never had traction control on a defender and am thinking that it has to be something to do with that. |
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9th Apr 2014 5:32pm |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347
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If its got abs it may be the sensor ring disintegrating.
One of my colleagues had something similar and on inspection found the magnets in the sensor ring had failed and were slowly finding there way into places they shouldn't be - what's worrying is it didn't come up as a sign on the dash. |
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9th Apr 2014 5:43pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17382 
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I can't think of anything connected with TC which would make a noise under power and not when not under power. A driveline component is more likely.
The point I was trying to make re wheelbearings (which I freely acknowledge I didn't do very well) is that at least one failure mode (when the case-hardened surface of a race starts to delaminate from the softer substrate) may not initially result in play. Hence I would be inclined to inspect the bearings if I couldn't find another defect. You could try removing the rear propshaft and taking it for a run with the CDL locked. |
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9th Apr 2014 5:46pm |
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189
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Cheers blackwolf
Ill give it a go. its strange as through all the years of land rover ownership and doing 99% of repairs and servicing, I haven't had this before. |
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9th Apr 2014 8:10pm |
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189
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oh and shaggy dog. Thanks for that, ill look into that too as I do feel the defender is underpowered to what it should be. Ill have to get diagnostics.
One thing though. if the sensor ring is disintegrating, wouldn't it throw a light up on the dash? |
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9th Apr 2014 8:14pm |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347
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On my co-workers, he said he thought it was just a bearing and had nothing show for ABS or Traction Control, but he found it when he put some wheels off the road to avoid a lorry and nearly spun as it was effectively inactive.
Luckily he had only very recently bought it so took it back to the garage he got it from, they stripped it and found it and replaced it. I think the common theme emerging here is strip it- if it answers your theory its solved, if not you can check it off your list. |
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9th Apr 2014 8:44pm |
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189
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Stripped it down and couldnt find anything wrong. Bearing were fine and greased well, couldnt see anything wrong with sensor put i have taken pics as i dont know what it normally should look like. Will try posting them later.
The noise did stop for a day but has since returned.  |
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18th Apr 2014 7:33am |
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| willyj Member Since: 23 Oct 2009 Location: Carmarthenshire Posts: 189
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so is this what the abs sensor should look like?
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25th Apr 2014 7:01pm |
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