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Engine Bay Exhaust Leak
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stevebez
 


Member Since: 18 Apr 2011
Location: Kent
Posts: 87

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Ipanema SandDiscovery 4
Engine Bay Exhaust Leak

So I have fumes (visible but not excessive) leaking into the engine bay (floating is more like it). It seems to be coming from the primary turbo side but I cannot hear any exhaust leak which is baffling me a bit. I just fixed a copper injector seal blowing and that's now sorted but still have this other leak it seems.

This was on cold start fwiw.

Any thoughts on culprit and best way to diagnose?

Thanks.  
Post #232252213th Jan 2023 1:18 pm
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Lrstaylor
 


Member Since: 03 Oct 2018
Location: Kent
Posts: 616

England 2005 Discovery 3 TDV6 HSE Auto Adriatic BlueDiscovery 3

Cracked inlet manifold ?  
Post #232252613th Jan 2023 1:39 pm
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stevebez
 


Member Since: 18 Apr 2011
Location: Kent
Posts: 87

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Ipanema SandDiscovery 4

[Possibly ... but I would have expected a ticking sound on this (dunno I am a petrol engine guy so mbe not as audible on Diesel?).]

Seems like Ill need to be digging into the nether regions to find this..

Sorry - I thought you typed exhaust Manifold... nope not the intake - this had cracked a while back and was recently replaced. Also smoke emanates from the bottom right rear of engine as you face it. Could be a simple gasket seal further downstream. So its either from the turbo gubbins, xover ex pipe or other connections / holes Confused  
Post #232253213th Jan 2023 1:51 pm
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Lrstaylor
 


Member Since: 03 Oct 2018
Location: Kent
Posts: 616

England 2005 Discovery 3 TDV6 HSE Auto Adriatic BlueDiscovery 3

Smoke test it, it's a common fault.
Have a look on the tube best video are from

LRTime  
Post #232254413th Jan 2023 2:52 pm
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Forlorn Hope
 


Member Since: 02 Apr 2018
Location: Consett
Posts: 18

United Kingdom 2011 Discovery 4 3.0 SDV6 HSE Auto Barolo BlackDiscovery 4

Sounds a bit like the issue I have, which is a cracked cross over pipe. The real issue is finding a reputable dealer to do the work at a reasonable cost. SDV6 HSE
Rock and tree sliders
Goodridge hoses and M Tec disks  
Post #232395424th Jan 2023 3:35 am
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