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EGR Valve - How To...
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18916

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3
EGR Valve - How To...

The biggy, the one we all love to hate, EGR Valve…
This is an O/S 07MY valve, which is pretty similar to pre07’s, just the bolts holding the valve onto the cooler go a different way, but I will point it out as I get there. And on the N/S, the dipstick tube and the turbo boost pipe both get in the way of that valve. Hopefully ill get some to do and edit this post with the differences… And apologies for the poor pics…

Anyway, start by removing the engine cover, and brake fluid reservoir cover (for the N/S valve, battery cover and battery). Then remove the side panel of said box. Undo screw holding coolant pipes onto lower part of the box.
Click image to enlarge


Then undo the 3x 13mm nuts circled, and remove lower tray
Click image to enlarge


With that out the way, you can see the offending little bas…. Valve
Click image to enlarge


Some clearer pictures of both sides of valves with the body removed (for reference only, dont need to remove the body to do them!)
Click image to enlarge

Click image to enlarge


Remove clip from upper part of pipe with screwdriver
Click image to enlarge


Remove 8mm bolt approx half way up the pipe, holding it to the cambelt cover, and the 2 holding the lower part of the pipe to the valve. Unplug electrical connector from valve
Click image to enlarge

Click image to enlarge


Remove 3x 8mm bolts holding the valve onto the side of the block, forgot to circle them before uploading. You almost cant see one. The turbo boost pipe gets in the way on the N/S valve
Click image to enlarge


Undo the 10mm bolt holding the fuel pipes to the engine
Click image to enlarge


The valve is held onto the cooler with 2 Torx30 bolts, the front one is easy enough to get out, but the inner one is a c** k. Not the 8mm bolts. Its these bolts that are different between pre and post 07MY’s…
Click image to enlarge

Click image to enlarge


Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
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Last edited by Disco_Mikey on 25th Jul 2010 12:10 am. Edited 3 times in total 
Post #43020727th Feb 2009 10:16 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18916

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Now place a big lever down between the egr valve and engine block, allowing access to inner bolt
Click image to enlarge


This is the best picture I could get of the inner bolt, unfortunately… Arrowed is what you can see of the tool… If its any help, the bracket to the left of the arrow is that of the fuel pipes…
Click image to enlarge


Look at the big empty gaping hole…
Click image to enlarge


These are the gaskets you need. Also, bin the 2 T30 bolts, and get 2 bolts, same as the ones the hold the pipe onto the valve body. Much much easier than messing about with those stupid bolts…
Click image to enlarge


To refit, put the outer bolt in the hole and hook the gasket over it. Lower the valve into place and start the bolt.
Click image to enlarge

Once it is almost all the way in, attempt the inner bolt. I found covering the head of the bolt in grease holds the bolt in place until it is started. Be careful, because if you drop it, its highly likely it will never be seen again.

Refit everything that was removed, and take for a road test. On pre07, there is no EML to contend with, just a huge regain of power. On 07>on, the EML will go off after 3 clean starts (no faults)

Alternatively, fit EGR blanks, available from a few members here

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
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Post #43020827th Feb 2009 10:17 pm
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blue meanie
D3 Decade 


Member Since: 04 Aug 2005
Location: Newbury
Posts: 6841

United Kingdom 2006 Discovery 3 TDV6 SE Manual Cairns BlueDiscovery 3

another great guide DM Thumbs Up
 and theeeeennn......???  
Post #43021427th Feb 2009 10:26 pm
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crazy
 


Member Since: 27 Jan 2008
Location: Near Milan
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Italy 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

Very good!!! Compliments.
Ciao
 Landy lover
Membro del Club 
 
Post #4308341st Mar 2009 9:45 am
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

Thumbs Up

according to the LRA guy i spoke to last week, a New 2 pence piece is just the correct size to blank off the valves Shocked
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
D4 HSE MY13
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4333455th Mar 2009 3:42 pm
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BrumLee
 


Member Since: 07 Mar 2008
Location: West Midlands
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United Kingdom 2005 Discovery 3 TDV6 SE Auto Bonatti GreyDiscovery 3

Mikey, nice write-up Thumbs Up do you have a price for the valve?
  
Post #4333535th Mar 2009 4:03 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

how long did it take to complete Question
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
D4 HSE MY13
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4333795th Mar 2009 4:55 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18916

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Dunc: Tis true, LRA do use 2p pieces to blank them off to allow you to carry on and save on getting you recovered Whistle
I would allow 2-3 hours to do each side if you havnt done one before Thumbs Up

Lee: IIRC, a pre 07MY valve is approx £130 + VAT each side, and an 07>on are (i think) about £90 + VAT each

HTH Thumbs Up
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Post #4334855th Mar 2009 7:33 pm
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Ollram
 


Member Since: 04 Dec 2006
Location: Gortynia
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Greece 2006 Discovery 3 TDV6 Base 7 Seat Auto Bonatti GreyDiscovery 3

VG info....
im watching this space..... Rolling Eyes Shocked
  
Post #4336115th Mar 2009 9:06 pm
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a11gus
 


Member Since: 09 Mar 2009
Location: up north
Posts: 8


very detailed, but what is an EGR valve and why would you want to blank it off? Confused
  
Post #45742021st Apr 2009 8:53 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18916

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Ridgeback_Moor posted this thread a while back. Some good info and pics in there Thumbs Up

http://www.disco3.co.uk/forum/topic29853.html?highlight=egr
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Post #45753422nd Apr 2009 7:09 am
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quantumjohn
 


Member Since: 16 Sep 2008
Location: London
Posts: 327

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Mikey,

Just like to say thanks for a very informative guide and no apologies needed for the photos, they were spot on.

I completed a change of the offside EGR valve today on my 05MY. It took me about 4 hours to do but that included a couple of views of this thread mid way through and retrieving a torx socket from the sump guard Rolling Eyes

What I would say is that if anyone is attempting this make sure you have a range of small to medium extension bars because it was these that allowed me to get a socket in the right place to get to the 2 Torx bolts that secure the EGR valve to the cooler.

Cheers,
John
  
Post #47211625th May 2009 10:43 pm
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irl32
 


Member Since: 27 Aug 2009
Location: Co Mayo
Posts: 66

Ireland 2006 Discovery 3 TDV6 Base 5 Seat Manual Tonga GreenDiscovery 3

A fantastic bit of work Bow down But how did you know whick one needed changing, and is it possible to blank the valve of on a 06 TDV6.

Where or who can i get to read the codes
 

Last edited by irl32 on 28th Aug 2009 11:47 am. Edited 1 time in total 
Post #51223427th Aug 2009 2:37 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18916

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Get the fault codes read

As for blanking them off, see here: http://www.disco3.co.uk/gallery/albums/use...s%20D3.pdf
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Post #51231327th Aug 2009 6:37 pm
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cazzman
 


Member Since: 14 Jan 2009
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South Africa 2006 Discovery 3 TDV6 S Auto Tangiers OrangeDiscovery 3
EGR BLANKING

i can remember that there was a another set of fotos , it was fotos of 2 buddies that day with a case of beer and doing it in 3 hours
 G4 Edition , TDV6S , BF Goodrige 265x75x17 ,
Dual Battery , Longrange tank , Sparewheel carrier(swing-out) , ARB Bumper with WARN winge. 
 
Post #5173218th Sep 2009 1:32 pm
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