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Knocking?
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Hoopfish
 


Member Since: 10 Jul 2021
Location: Sussex
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 SE Auto Scotia GreyDiscovery 3
Knocking?

Can anyone shed some light on this knocking?. Started today when stopped at traffic lights, appears to fade a bit when doing 30+ mph. It has been slow at starting lately with a puff of grey smoke!.
Thanks.
https://youtube.com/shorts/MgX8cqLMz74?feature=share
 “When I die, I want to die like my grandfather who died peacefully in his sleep. Not screaming like all the passengers in his car.”  
Post #23293908th Mar 2023 8:01 pm
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darrind
 


Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863

England 2013 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

I wouldnt keep starting it until you can work out whats going wrong - difficult to say from the video as im only on laptop speakers but doesn't sound good could be spun main bearing, hopefully something a little less costly like the aux belt tensioner
 Must stop buying shiny toys....  
Post #23293958th Mar 2023 8:57 pm
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Hoopfish
 


Member Since: 10 Jul 2021
Location: Sussex
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 SE Auto Scotia GreyDiscovery 3

Thanks Darrind. Pulley tensioner was changed last month. Sound is definitely coming from in the engine.
 “When I die, I want to die like my grandfather who died peacefully in his sleep. Not screaming like all the passengers in his car.”  
Post #23294028th Mar 2023 9:35 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20734

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Sound in the video isn't great, but its hopefully a leaking injector

It's its not a combustion leak, it's something inside the engine
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #23294058th Mar 2023 9:56 pm
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DN
D3 Decade 


Member Since: 24 Jun 2006
Location: W.London.
Posts: 2296

Ukraine 2006 Discovery 3 TDV6 Base 7 Seat Auto Zambezi SilverDiscovery 3

Is the engine oil level correct ? Defective valve lifter ?
 D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.  
Post #23294138th Mar 2023 11:42 pm
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Flapper
 


Member Since: 04 Feb 2015
Location: Gloucester
Posts: 329

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3

its coming from the left side. leaking injector?
  
Post #23294529th Mar 2023 1:49 pm
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Hoopfish
 


Member Since: 10 Jul 2021
Location: Sussex
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 SE Auto Scotia GreyDiscovery 3

Thanks for all the replies. Just too keep you up date with the knock. The garage picked it up today and have informed me that one of the injectors is shot and possibly 3 others are also pretty shot. They are sending them all off to be tested and will let me know. I will post when I hear anything. Thanks.
 “When I die, I want to die like my grandfather who died peacefully in his sleep. Not screaming like all the passengers in his car.”  
Post #232971110th Mar 2023 9:46 pm
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LittleG
 


Member Since: 21 Sep 2013
Location: Wombourne
Posts: 389

United Kingdom 2005 Discovery 3 TDV6 SE Auto Cairns BlueDiscovery 3

Disco_Mikey , providing remote diagnostics since 2007.
Bow down Thumbs Up
  
Post #232973811th Mar 2023 10:45 am
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Hoopfish
 


Member Since: 10 Jul 2021
Location: Sussex
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 SE Auto Scotia GreyDiscovery 3

SO....... I have just got off the phone to the garage owner, who is on the beach in Spain!. Injectors have been returned as working fine. They are now replacing them and are going to do a compression test, thinking of possible water ingress?. The day it died was the day of a big snow melt here so went through a fair amount of standing water, although it is fitted with a snorkel.
 “When I die, I want to die like my grandfather who died peacefully in his sleep. Not screaming like all the passengers in his car.”  
Post #233078421st Mar 2023 2:03 pm
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Hoopfish
 


Member Since: 10 Jul 2021
Location: Sussex
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 SE Auto Scotia GreyDiscovery 3

SO! . The Disco is no more, it is a deceased Disco.
Injectors came back as fine, they done a pressure test and various other things to no avail. They are now thinking possible oil pump which requires engine out body off and another holiday paid for by me for the mechanic and his family. Obviously I have called it a day on the old girl, another dead Land Rover in our collection. Needless to say we need another family car, that is not.going to blow up so we have now stayed away from Land Rovers and brought a.....oh no wait a minute...we brought a Freelander 2 . FFS will I never learn.
 “When I die, I want to die like my grandfather who died peacefully in his sleep. Not screaming like all the passengers in his car.”  
Post #233171130th Mar 2023 7:55 am
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