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Do you really have to remove the turbo to replace the CPS?
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syncmaster710n14
 


Member Since: 30 Jan 2022
Location: Hinckley
Posts: 48

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3
Do you really have to remove the turbo to replace the CPS?

Hi all, so my 2008 TDV6 Disco 3 needs its CPS replacing, no worries I thought, I have done them on other cars, just unbolt it, bolt the new one in, plug the cable in, away you go, 10 min job.
But of course that would be way too easy for Land Rover…….. No, the sadistic, mechanic hating engineers at Land Rover thought ‘let’s bury it behind the turbo, and then put a suspension arm in front of that just to make sure it’s an all day job. Just to replace a £50 part.

Has anyone on here had to do one of these before, any advice before I make a start on this adventure of pain and mild annoyance?
  
Post #230541424th Aug 2022 6:50 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20853

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

No, you don't

Awkward, but definitely not turbo off Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #230542224th Aug 2022 7:32 pm
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syncmaster710n14
 


Member Since: 30 Jan 2022
Location: Hinckley
Posts: 48

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Thats good to hear, how did you get to it?

Any tips?
  
Post #230542724th Aug 2022 7:42 pm
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Flatlander
 


Member Since: 20 Jul 2015
Location: Here
Posts: 575

United Kingdom 

You need to remove the NSF wheel, turbo support bracket, plastic bung then a long Torx25 bit with a UJ on it, then a long 1/4 drive extension. The set screw is captive on the sensor, pull it out by the short harness, rotate 180 degrees when you get to the edge of the casting, then out.
Try to 'set' the position of the new sensor to the same angle as the old one on the harness and be careful to not cross-thread the set screw.
Also helps if you've not done 'several' to tape all the 1/4 drive joints together so you don't drop anything inside. From memory I was doing them in about 40 mins when there was a service action on them (2017 I think).
  
Post #230543124th Aug 2022 7:54 pm
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syncmaster710n14
 


Member Since: 30 Jan 2022
Location: Hinckley
Posts: 48

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

You my man are an absolute Legend! Very Happy

Thank-you very much for your help!

Was about to order gaskets for the turbo, so saved me £30 there already!
  
Post #230543224th Aug 2022 8:00 pm
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Flatlander
 


Member Since: 20 Jul 2015
Location: Here
Posts: 575

United Kingdom 

Its a lot easier if you can get the vehicle to a height where you are 'eye-to-eye' with the turbo, bending / crouching down just puts your body at the wrong angle to keep everything in line.
As has been mentioned, it's not a difficult job, just fiddly, take your time and if you're struggling to get the new one in the right position, go and have a brew, let your muscles (and head!) relax for a bit.

If you put some tape across the UJ, it'll make it less floppy and easier to 'steer' into the set screw - make sure you have a good LED torch as well, oh, and put some Duck oil (or other preferred penetrating oil) on the support bracket fasteners the night before.
  
Post #230543524th Aug 2022 8:20 pm
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OvalAutos
 


Member Since: 28 Dec 2018
Location: Cradley Heath
Posts: 382

United Kingdom 

It also helps to put a tiny smear of grease on the CPS where the guide lugs are to help ease it in.
 Joe  
Post #230544025th Aug 2022 5:44 am
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13039

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

I hereby elect myself to ask a question that I suspect I'm not alone in thinking about ...

What is the CPS ?


And I have checked the acronyms list in the Wiki and it doesn't get listed ... so it's either so flipping obvious or so obscure but I can't figure it out. Laughing
  
Post #230544425th Aug 2022 6:57 am
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6312

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Quote:
What is the CPS ?


Crank Position Sensor.


Flack Thumbs Up
  
Post #230545125th Aug 2022 8:06 am
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13039

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

Cheers Flack.
 .


Dean
====================================

2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer Sad ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms 
 
Post #230545925th Aug 2022 9:10 am
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tanters
 


Member Since: 24 Oct 2007
Location: Oireland
Posts: 4287

Ireland 2005 Discovery 3 TDV6 Base 5 Seat Manual Tonga GreenDiscovery 3

Hardware wrote:
I hereby elect myself to ask a question that I suspect I'm not alone in thinking about ...

What is the CPS ?




Thank you, brave soldier Laughing
 A happy childhood ... is the worst possible preparation for life.  
Post #230547525th Aug 2022 10:37 am
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13039

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

Once I'd thought Crown Prosecution Service, I couldn't come up with any car related answers. Laughing
 .


Dean
====================================

2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer Sad ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms 
 
Post #230547925th Aug 2022 10:59 am
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Flatlander
 


Member Since: 20 Jul 2015
Location: Here
Posts: 575

United Kingdom 

Confusingly (or not) the JLR designation is 'CKP'
  
Post #230553025th Aug 2022 7:24 pm
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motorworks
 


Member Since: 14 Nov 2019
Location: Usk
Posts: 412

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

"Confusingly (or not) the JLR designation is 'CKP'"

So CPS for the camshaft sensor?
 Chris  
Post #230554125th Aug 2022 9:28 pm
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Flatlander
 


Member Since: 20 Jul 2015
Location: Here
Posts: 575

United Kingdom 

Camshaft is CMP
Probably both Ford-ism's...
I knew what the OP was talking about because of the location and translated the CPS into CKP subconsciously - well, I think I did!
  
Post #230554725th Aug 2022 9:49 pm
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