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Strange Noise - 'squawking' on throttle lift [inc video]
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ljmaslin
 


Member Since: 23 May 2014
Location: Southampton
Posts: 12

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3
Strange Noise - 'squawking' on throttle lift [inc video]

Hi all,

I've been browsing here for months and now that I have finally bought a 55 plate D3 I have a reason to post Wink

So I've had it for a month and its going back to the dealer I bought it from this week for the rear air con pipes fix.

While they have it I want them to investigate a weird and annoying noise I keep getting...
They had it to investigate the air con a few weeks back and failed to hear anything wrong but I hear this noise all the time, although its not constant, i.e. not with engine speed etc.

So a consistent way to reproduce the noise is - while actually driving:
- Drive car for about a 1 mile if starting from cold
- Accelerate to moderately increase speed (from around 20 or 30 mph)
- While accelerating lift off the throttle
- Notice rather annoying, maybe metallic, 'squawking' noise from engine area for about 1 second
- Press accelerator again to maintain road speed and notice same noise (albeit shorter in length) on pick up

To really hear it you have to:
- have windows down
- drive in built-up area

Though with no radio on etc you can hear it with the windows up.

I can actually get it to happen for as long as I want, almost, it I lift the throttle to ~1500 rpm having started to accelerate up a slight incline.

As its hard to describe the noise its been heard to recoginse it from other posts on the forum, one post that sounded similar suggest it might me the UJs on the from drive shaft?

Also note that the AC has no gas in it at present, so maybe it could be related to this?, though I'd have though that would have produced the noise while reving the engine in neutral - which it doesn't.

BTW - its a 55 plate Diesel HSE Auto.

So does anyone have any ideas about what this might be?
If its something on the way out I'd rather fix it now.

Plus its almost embarrassing driving around at the moment, at least with the windows down!

Hopefully this link to a video of it happening works....

https://plus.google.com/u/0/photos/1163848...rnl1oyDxAE


Let me know if it doesn't.

Cheers,
Lee
  
Post #131096214th Jul 2014 12:32 pm
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10464

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

Welcome to the forum Lee.

Not sure about the noise, but would be interested to know where you bought the car.

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t. 
 
Post #131096514th Jul 2014 12:43 pm
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ljmaslin
 


Member Since: 23 May 2014
Location: Southampton
Posts: 12

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Queens Park Garage - Bournemouth.
  
Post #131096914th Jul 2014 12:55 pm
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10464

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

I don't think that Queens Park Garage are particularly experienced in servicing Discoveries.

It might pay to have a good "indy" check the car over before you go back to Queens Park Garage - try Mark West at West 4x4:-

http://www.west4x4.co.uk/

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t. 
 
Post #131097914th Jul 2014 1:11 pm
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ljmaslin
 


Member Since: 23 May 2014
Location: Southampton
Posts: 12

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

OK, thanks I'll give them a go if I need to after this next round Wink
Before they took it to a local expert 'Pete' who I think also took it to Terry of "T Johnson Land Rover" - but that was mostly for the air con investigation...
  
Post #131099214th Jul 2014 1:52 pm
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gensetsteve
 


Member Since: 01 Jan 2014
Location: hampshire
Posts: 340

United Kingdom 2011 Discovery 4 3.0 TDV6 Commercial Auto Belize GreenDiscovery 4

All I can hear is a metallic rattle sounds like front suspension. The squark you mention and the times it happens co inside with the turbo dump valve operating have you checked and put a drop of oil on the linkage they get very dry and eventually seize.
 D4  
Post #131100614th Jul 2014 2:36 pm
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ljmaslin
 


Member Since: 23 May 2014
Location: Southampton
Posts: 12

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

thanks gensetsteve.

Not sure about any suspension noise - at least I've not noticed any knocking over bumps etc....

I can just about change the oil Wink so I'm not sure where to start with finding the dump valve linkage?
  
Post #131104614th Jul 2014 4:34 pm
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gensetsteve
 


Member Since: 01 Jan 2014
Location: hampshire
Posts: 340

United Kingdom 2011 Discovery 4 3.0 TDV6 Commercial Auto Belize GreenDiscovery 4

Find the turbo on the side you will see a rod with a solinoid looking thing the rusty moving bit needs a small squirt of 3 in one or engine oil.
 D4  
Post #131112114th Jul 2014 6:58 pm
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z4cAtS
 


Member Since: 05 May 2011
Location: M4 J13
Posts: 137

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

I have the same noise, however my vane linkage is free moving.
The noise can occur either as you lift off throttle or pretty much constant at 49mph and low load.

I have oiled and worked the linkage again just to see if it improves but it still does it.

I have had a few months ago the P132B-00 (2F) Turbo/supercharger boost control A performance error and limp mode after giving it some beans on the motorway.

Not able to replicate that error any more though.

Otherwise it is all running fine with good mpg.

Any ideas?
 (Remap, EGRs Blanked,Silicon I/C hose) from BAS, (Torque Convertor, Compressor, FL Wishbones, Alternator) by WD, Belts by Newbury4x4, Megaflush+extra cooler by GRGB, Diff+Transfer oils, ARB Bushes, Fuel filter, Fixed Towbar, Remote FBH.

The 'z' is silent 
 
Post #194460612th May 2018 11:36 am
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Search noisy torque convertor, mines been doing it for 3.5 years now.
Very common.
  
Post #194464012th May 2018 1:12 pm
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TinTapper
 


Member Since: 16 Aug 2016
Location: South Northants/Oxfordshire
Posts: 202

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Yep, that’s almost certainly the Torque Converter! Mine does the same!
Even new TC can make this noise, you’ll get used to it Shocked
  
Post #194465812th May 2018 2:55 pm
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z4cAtS
 


Member Since: 05 May 2011
Location: M4 J13
Posts: 137

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Thanks
 (Remap, EGRs Blanked,Silicon I/C hose) from BAS, (Torque Convertor, Compressor, FL Wishbones, Alternator) by WD, Belts by Newbury4x4, Megaflush+extra cooler by GRGB, Diff+Transfer oils, ARB Bushes, Fuel filter, Fixed Towbar, Remote FBH.

The 'z' is silent 
 
Post #194501414th May 2018 5:49 am
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Aerialmark
 


Member Since: 21 Jun 2015
Location: Burnley (Where the M65 is cobbled)
Posts: 5189

England 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Mine was replaced with a new gearbox and tc but still does it. You will get used to it Very Happy
 The happiest of people don't necessarily have the best of everything;
They just make the best of everything they have. 
 
Post #194545915th May 2018 5:28 pm
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James1974
 


Member Since: 23 Nov 2017
Location: Stevenage
Posts: 990

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Barolo BlackDiscovery 4

I also had a new box and convertor although quieter it’s still there I did querie it with them and they said it was the torque convertor pump lockimgand unlocking and
Totally normal
 Disco 3 gone but not forGotten
Welcome disco 4
Flappy paddles working from gap
Heated steering wheel done
Bluetooth iPod connection done
Xeon lights (facelift) done
Afs retrofit done
Logic 7 retrofit done
Armrest fridge
Facelift rear lights
Retrofit High beam assist done
Genuine 22” Range Rover sport alloys
Retrofit acc (gave up not possible)
retrofit tpms done
Retrofit Range Rover lcd digital dash. Done
Retrofit blind spot assist done 
 
Post #194571416th May 2018 3:51 pm
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maplecottage
 


Member Since: 01 Feb 2011
Location: Norfolk
Posts: 3171

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Had it on mine (2006 HSE Auto) - replaced torque converter and prop shaft, no transfer box fluid and hey presto - no noise Thumbs Up
  
Post #194602617th May 2018 3:40 pm
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