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Crossover pipe - D4
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dlgis
 


Member Since: 02 Oct 2015
Location: Tunbridge Wells
Posts: 398

United Kingdom 2012 Discovery 4 3.0 TDV6 GS Auto Indus SilverDiscovery 4
Crossover pipe - D4

Took the disco to my mate’s garage yesterday and we got it up on the lift to check the air hiss. It was what i feared as the noise goes when the second turbo kicks in - the crossover pipe has a small leak.

Any recommendations of somewhere to get this done at a fair price? I’m in Kent but willing to travel to get it done at the right price by someone who knows what they’re doing. Although Disco Mikey is sadly a bit too far away!
 D4 GS 12MY  
Post #212414427th Feb 2020 9:05 am
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Nickdisco
 


Member Since: 24 Aug 2017
Location: North West
Posts: 84

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Indus SilverDiscovery 4

Do you have a location or where could you see? Mines developed a hiss...
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Post #21253912nd Mar 2020 11:22 pm
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dlgis
 


Member Since: 02 Oct 2015
Location: Tunbridge Wells
Posts: 398

United Kingdom 2012 Discovery 4 3.0 TDV6 GS Auto Indus SilverDiscovery 4

With the car on a lift I had a mate with a length of tube to his ear check around the crossover pipe from above and below while i gently blipped the throttle to create the hiss. Seemed to be coming more from the RH (drivers) side of the pipe.
 D4 GS 12MY  
Post #21253972nd Mar 2020 11:39 pm
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Nickdisco
 


Member Since: 24 Aug 2017
Location: North West
Posts: 84

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Indus SilverDiscovery 4

Ah right, may be time to buy one of those bore scope usb thingys then
 Silver MY10 D4
Prospeed Rack / Ladder and Accessories
Shire Sliders
GG AT3
Genuine LR RAI
The list goes on... 
 
Post #21254002nd Mar 2020 11:46 pm
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dlgis
 


Member Since: 02 Oct 2015
Location: Tunbridge Wells
Posts: 398

United Kingdom 2012 Discovery 4 3.0 TDV6 GS Auto Indus SilverDiscovery 4

Just a few feet of rubber hose and a willing assistant is all you need Very Happy
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Post #21254022nd Mar 2020 11:53 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Its not the EGR pipe, is it?

Replaced a few of them, but never a crossover pipe...
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Post #21254163rd Mar 2020 6:57 am
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DrRobH
 


Member Since: 10 Oct 2015
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United Kingdom 

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Post #21254203rd Mar 2020 7:30 am
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dlgis
 


Member Since: 02 Oct 2015
Location: Tunbridge Wells
Posts: 398

United Kingdom 2012 Discovery 4 3.0 TDV6 GS Auto Indus SilverDiscovery 4

Disco_Mikey wrote:
Its not the EGR pipe, is it?

Replaced a few of them, but never a crossover pipe...


Ah, as I wasn’t the one identifying the leak you’ve planted a seed of doubt! Symptoms though are a hissing ( air leak) noise that disappears when the second turbo kicks in, and a smell of exhaust gases. I assume the egr pipe would make the same noise irrespective of what the turbos were doing?
 D4 GS 12MY  
Post #21254363rd Mar 2020 8:16 am
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dlgis
 


Member Since: 02 Oct 2015
Location: Tunbridge Wells
Posts: 398

United Kingdom 2012 Discovery 4 3.0 TDV6 GS Auto Indus SilverDiscovery 4

DrRobH wrote:
www.rcv.co.uk
www.ahlengineering.co.uk
www.dartfordtransmissions.co.uk - ask for Martin Hind


Thanks for your suggestions DrRob, that’s helped me a lot Thumbs Up
 D4 GS 12MY  
Post #21259185th Mar 2020 5:15 pm
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DrRobH
 


Member Since: 10 Oct 2015
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You’re welcome. Every time I hear a positive review about a place I add it as a favourite in Google Maps Thumbs Up
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Post #21259275th Mar 2020 5:48 pm
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charlietortoise
 


Member Since: 29 Oct 2011
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2010 Discovery 4 3.0 TDV6 HSE Auto Barolo BlackDiscovery 4

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Post #231902116th Dec 2022 6:35 pm
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Scott90
 


Member Since: 28 Apr 2013
Location: Crieff
Posts: 119

Scotland 2011 Discovery 4 3.0 SDV6 Commercial XS Auto Galway GreenDiscovery 4
Re: Crossover pipe - D4

dlgis wrote:
Took the disco to my mate’s garage yesterday and we got it up on the lift to check the air hiss. It was what i feared as the noise goes when the second turbo kicks in - the crossover pipe has a small leak.

Any recommendations of somewhere to get this done at a fair price? I’m in Kent but willing to travel to get it done at the right price by someone who knows what they’re doing. Although Disco Mikey is sadly a bit too far away!


Hi I know this is an old post but I have now developed a hissing that also disappears as the 2nd turbo kicks in and was wondering what the problem was with yours? Sadly I was suspecting the crossover pipe but would be delighted if it was not😊
  
Post #233500529th Apr 2023 3:32 pm
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