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PieRat



Member Since: 17 Jun 2023
Location: chch
Posts: 5

New Zealand 2012 Range Rover Westminster TDV8 Barolo Black
TDv8 Secondary air charge valve actuator vacuum hose routing

Hey guys, first time posting, been using the forum for information for a while though!

2012 4.4 tdv8
Recently replaced my drive-belt and idlers, water pump etc. When I took off the fan shroud I unwittingly unplugged the vacuum lines for the COSV without noticing.

Anyway, I have it all back together and plugged one end of the vacuum line into the actuator but I can't figure out where the other end plugs into. I've searched my heart out but can't find any details on the vacuum line itself! Any help would be greatly appreciated.

As expected I get the p004c-77 and p004b-71 when I go over 3500 and try to use the second turbo.

Click image to enlarge




Also found the vacuum line pictured below floating under the LHS airbox, I did try joining them with a coupler (thought the join might've been carelessly lost when I removed the shroud) but the code still persists, this line one seems to be coming from the bottom of the engine somewhere but I'm not sure.

Click image to enlarge


Last edited by PieRat on 17th Jun 2023 8:24am. Edited 1 time in total

Post #666815 17th Jun 2023 1:40am
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3163

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

That’s the front diff vent pipe. 2012 TDV8 Vogue (L322)

Post #666820 17th Jun 2023 6:55am
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PieRat



Member Since: 17 Jun 2023
Location: chch
Posts: 5

New Zealand 2012 Range Rover Westminster TDV8 Barolo Black

Thanks JayGee, I thought it must've been a breather pipe.

Any idea where the vacuum line feeding the the secondary air change-over valve connects up to? I have one end in the CSOV but can't find any reference to where the remaining end goes!

Post #666821 17th Jun 2023 8:13am
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RichTD6



Member Since: 02 Mar 2011
Location: Lincolnshire
Posts: 83

United Kingdom 2012 Range Rover Westminster TDV8 Zermatt Silver

If you remove the large air intake rubber hose from the intercooler to the throttle body and then investigate down the front of the engine under the passenger side (UK) rocker cover you will find hidden a solenoid valve with several vacuum pipes attached and this is where the other end should go. I only know this because I had the two pipes which run from the vacuum pump come off when I was investigating a coolant leak a couple of weeks ago. I found the rubber tubes which they plugged into had ‘relaxed’ with age and were not gripping the plastic tubes. As a fix for now I put small cable ties around each joint to keep them in place. It was a fiddle due to the limited access but seems to be working so far. 2012 Westminster TDV8 4.4 Indus Silver
GAP IID Bluetooth Tool

Previous Range Rovers:

2005 L322 Vogue SE TD6 Zambezi Silver
1995 P38A HSE Epsom Green
1988 Classic Vogue EFi Cassis Red
1973 Two Door Tuscan Blue

Post #666904 18th Jun 2023 11:45am
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PieRat



Member Since: 17 Jun 2023
Location: chch
Posts: 5

New Zealand 2012 Range Rover Westminster TDV8 Barolo Black

thanks for that. With your directions I was able to get that line plugged in and now the second turbo works. Never expected it to be located there to be honest cheers

Post #666959 18th Jun 2023 8:31pm
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RichTD6



Member Since: 02 Mar 2011
Location: Lincolnshire
Posts: 83

United Kingdom 2012 Range Rover Westminster TDV8 Zermatt Silver

That’s good news, pleased you have got it sorted. 2012 Westminster TDV8 4.4 Indus Silver
GAP IID Bluetooth Tool

Previous Range Rovers:

2005 L322 Vogue SE TD6 Zambezi Silver
1995 P38A HSE Epsom Green
1988 Classic Vogue EFi Cassis Red
1973 Two Door Tuscan Blue

Post #666989 19th Jun 2023 5:46am
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Mfcetin



Member Since: 26 Jun 2023
Location: Nürnberg
Posts: 63

Germany 2011 Range Rover Vogue SE TDV8 Alaska White

Hello everyone,

the rubber ends of my vacuum lines are quite loose and I am not sure if they are tight. I want to change them anyway.
I found the part number of the first pipe (LR022879) and looking for the second pipe, as marked in the picture here:

Click image to enlarge


From part catalogue, I found this. Is that the part I need? why is it greyed out? not available as a single pipe?

Click image to enlarge
 2011 Vogue SE 4.4 TDV8

Post #693061 21st May 2024 2:03pm
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PAYNTS



Member Since: 23 May 2024
Location: Bedofrdshire
Posts: 13

United Kingdom 2012 Range Rover Vogue TDV8 Orkney Grey

did you manage to source the pipes for this or do you have to buy the whole pipe assembly ??

Post #697008 28th Jul 2024 9:18am
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Mfcetin



Member Since: 26 Jun 2023
Location: Nürnberg
Posts: 63

Germany 2011 Range Rover Vogue SE TDV8 Alaska White

I couldn’t find the second pipe, I think its sold as whole assembly. I just put a zip tie on the end marked with nr 2 in the picture above and replaced the first pipe 2011 Vogue SE 4.4 TDV8

Post #697014 28th Jul 2024 10:01am
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