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flying_low



Member Since: 08 Apr 2011
Location: Masai Mara
Posts: 19
Kenya 2011 Defender 110 Puma 2.4 SW Keswick Green
Deep/low judder from underneath and behind passenger seat..
Hi,

I'm hearing a wierd low 'tapping' or more like a juddering sound from underneath the car, left side - possibly behind the front passenger seat/under the rear seat....
Impossible to identify accurately while driving.. and can;t hear it at any other time..

It only happens when i'm in gear and allow the revs to drop.. so just before the ecu kicks in to keep the revs at idle there is this low judder.. which i swear wasn't there when i got the car.. 3000km only from new..

I also had a bit of a look under .. checking the steering and suspensions - but a really cursory examination.. and didn't notice any loose bolts - nothing looked abnormal.

However am wondering if this might be more like the issue.. ?
if anyone can share.. much appreciated!

0037 L8505bu - KNOCKING NOISE FROM REAR UNDERSIDE OF VEHICLE - ‘A’ FRAME

Thanks!! Thumbs Up 2011 110 Tdci
1982 Range Rover V8 Classic (Gone)
Post #76856 20th Jun 2011 6:34pm
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noworries4x4



Member Since: 24 Dec 2010
Location: Newton Abbot Devon
Posts: 1195
England 
Sounds like the hand brake grabbing at lowspeeds mine did it all the time just needs adjusting keeps the shoes in place better. Changed the return springs eventually and all cured. If everything is under control you are not going fast enough.

Every Day 16 MY Discovery 4 Commercial Workshop and Escort Vehicle
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Post #76857 20th Jun 2011 6:43pm
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eutek



Member Since: 03 Mar 2009
Location: High Wycombe
Posts: 586
United Kingdom 2009 Defender 110 Puma 2.4 XS CSW Stornoway Grey
Interesting - I had a similar experience the other day. I was in 1st, leaving a car park and going up a slight incline. I was just letting the 110 pull itself along, not applying any throttle and it started make a juddering/rumbling vibration.

It wasn't close to stalling either.

It has done it on occasion when in neutral, when the engine is cold. A quick rev and it goes away. I can't figure out what could be vibrating.
Post #76936 21st Jun 2011 8:45am
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reno



Member Since: 17 Feb 2011
Location: Singapore
Posts: 9
Singapore 2009 Defender 90 Puma 2.4 SW Stornoway Grey
Does the judder sound like this in the attached youtude clip?

&feature=youtube_gdata_player
Post #76975 21st Jun 2011 1:34pm
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eutek



Member Since: 03 Mar 2009
Location: High Wycombe
Posts: 586
United Kingdom 2009 Defender 110 Puma 2.4 XS CSW Stornoway Grey
It sounds more like this one:

http://www.youtube.com/watch?v=0fwfb4FPAnI&feature=related
Post #76976 21st Jun 2011 1:37pm
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BigMike



Member Since: 13 Jul 2010
Location: Lancashire
Posts: 2253
United Kingdom 
check the bushes on your radius arms, your shocker bushes, the ball joint on the drag link and the same on the track rod.

does the steering feel ok generally? Also check the engine mounts on the n/s under the bonnet (i know the noise sounds like its coming from underneath but it can resonate). also check the rear n/s shock and both spring mounts

also the uj's, see if you can move them and hit the props with a metal spoon, see what sound it makes.

if its none of those things then you're down to transmission i think.
Post #76993 21st Jun 2011 3:59pm
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spudfan



Member Since: 10 Sep 2007
Location: Co Donegal
Posts: 4500
Ireland 
This might be a long shot.Mine was in the habit of making knocking noises going over bumps or starting and stopping. Took ages to trace. Turned out to be a missing rubber buffer on the bonnet hinge. The hinge was banging in the metal bracket. Might be worth seeing if there is play in the bonnet hinges. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali
2008 110 2.4 tdci csw-Zulu
2011 110 2.4 tdci csw-Masai
Post #77009 21st Jun 2011 5:35pm
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BigMike



Member Since: 13 Jul 2010
Location: Lancashire
Posts: 2253
United Kingdom 
Another thought - check the outrigger bolts. Can be found just under the rear of the front wheel arches.
Post #77021 21st Jun 2011 6:11pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6265
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
reno.....what the noise / rattle in the vid clip?

thanks.
Post #77221 22nd Jun 2011 10:45pm
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reno



Member Since: 17 Feb 2011
Location: Singapore
Posts: 9
Singapore 2009 Defender 90 Puma 2.4 SW Stornoway Grey
Hi, it is some knocking noise from rear undercarriage when the gas pedal is released during cruising.... Still haven't figure out what cause it.... Confused
Post #77226 23rd Jun 2011 12:05am
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flying_low



Member Since: 08 Apr 2011
Location: Masai Mara
Posts: 19
Kenya 2011 Defender 110 Puma 2.4 SW Keswick Green
BigMike wrote:
check the bushes on your radius arms, your shocker bushes, the ball joint on the drag link and the same on the track rod.

does the steering feel ok generally? Also check the engine mounts on the n/s under the bonnet (i know the noise sounds like its coming from underneath but it can resonate). also check the rear n/s shock and both spring mounts

also the uj's, see if you can move them and hit the props with a metal spoon, see what sound it makes.

if its none of those things then you're down to transmission i think.


Hi,
Big Mike, this sounds really like wat i have been thinking.. unfortunately haven;t had 10 minutes to spare since my last post.. but hopefully over the next few days should have the chance to check the undercarriage..
Will report asap..
Thanks all..
Thumbs Up

PS: reason i'm thinking that its a suspension/UJ/engine mount issue is that (and apologies for forgetting to mention this earlier) i find the rattle happens when running over rough ground a lot more.. in fact come to think of it.. it might only be happening when i'm on dirt/unpaved roads which is currently 100% of the time..
Anyhow.. i shall post an update soon..
Cheers. 2011 110 Tdci
1982 Range Rover V8 Classic (Gone)
Post #77763 25th Jun 2011 3:44pm
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