Oil cooler failure always ends up with oil in the header if you don't catch it in time. Oil cooler failure is a when and not if on these cars but doesn't explain coolant loss. EGR cooler failure is not that common and I've never heard of one on these engines leaking into the exhaust but it is possible. I'd have thought if the EGR cooler heat excahnger is leaking coolant would also get sucked into the intake and cylinders which would be pretty catastrophic. Pressure and sniffer test the cooling and take it from there. 2012 TDV8 Vogue (L322)

Make sure the oil filter hasn’t been fastened down that tight that the seal below it has gone flat instead of round. Some garages do this to try and solve the oil leak, but obviously makes things worse.

There are also the O rings on the 2 pipes at the back of the engine, but you have too much oil knocking about for it to be just those….

https://www.fullfatrr.com/forum/topic35830...t=oil+leak

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Update 4.

Here's today's latest.
Started from cold and the smoke is almost instantaneous and has a strong diesel smell. See the video and any thoughts on the smoke colour welcome. (Video to follow later.)

With a iid tool we monitored the fuel rail pressure and as soon as the engine stopped the rail pressure collapsed. Did the same test on another 4.4 TDV8 and the pressure only dropped by a tiny amount.

Also did a sniffer test in the coolant with fear and trepidation but delighted to report all is good.

Am treating the oil cooler as a service part so will replace it as I'm fairly certain it's the source of the oil in the coolant. Who's the oem manufacturer of the oil coolers?

So I'm now fairly confident I've a faulty injector. The question is which one(s). Is there anyway of testing injectors without removing from the car? This is now the main unanswered question. Rehab is for quitters!!!

RR 2007 3.6 TDV8 Java Black *
RR 2007 3.6 TDV8 Zermatt silver *
RR 2000 P38 4.6 Met red *
Mercedes 300TE 4-Matic *
Jaguar 420 (1969) *
Nissan 300Z
Citroen XM 2.5TD X 6
Bentley Continental R
Hydrocon Highlander
Hydrocon Hamilton
Hydrocon Huntly
Am told the ones with a * are to be offered for sale! 😳

Departed
LR 1992 110 2.5TD
RR 2000 Holland & Holland 4.6 LPG
RR 4.2 Supercharged with LPG, Vogue SE 2007 Buckingham Blue
RR 2002 4.4 V8 Zambesi Silver

I don't know if it's the same with diesels but my IID was able to show injector pulse widths on my 5.0 which can pinpoint a problem one!

On the 4.4 there’s no option in the IID Tool or SDD to monitor anything to do with the injectors unfortunately.

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Could be more than 1 faulty injector, especially if the system has had a dose of petrol.
Perhaps remove the glow-plugs looking for indications.

Last edited by GraemeS on 26th Oct 2024 7:55pm. Edited 2 times in total

Curiosity got the better of me so I had a look in the workshop manual for the 4.4 Diesel... I also did a bit of Googling...

They use Bosch Piezo injectors (according to the manual) which runs the fuel return line at around 10 bar (according to Google).

You need a special kit designed for Piezo injectors to do loop back tests on that engine.

Removing the glow plugs is a good idea, however, having removed glow plugs on older diesels before I'm not entirely sure I'd fancy giving it a go! If they snap you're in a whole world of pain.

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Can injector offset learning be forced? That should show-up any injector that's out of spec.

Re: Update 4

Ok filtration masks on, here's the link to the video.
It would be very helpful if anyone who's add a faulty injector belching white smoke could comment on the colour and density of smoke to what they experienced and say how many injectors they had to change?

I wasn't aware that these had many injector problems. When they go do they all go or just individually? Engine has done <120k miles.

Started the engine from stone cold, hadn't been run since Tuesday and smoke started within one second. Watch what happens when I revved it a little at the end.
Could easily shut down a motorway network with that. Great getaway vehicle for crims!

 Rehab is for quitters!!!

RR 2007 3.6 TDV8 Java Black *
RR 2007 3.6 TDV8 Zermatt silver *
RR 2000 P38 4.6 Met red *
Mercedes 300TE 4-Matic *
Jaguar 420 (1969) *
Nissan 300Z
Citroen XM 2.5TD X 6
Bentley Continental R
Hydrocon Highlander
Hydrocon Hamilton
Hydrocon Huntly
Am told the ones with a * are to be offered for sale! 😳

Departed
LR 1992 110 2.5TD
RR 2000 Holland & Holland 4.6 LPG
RR 4.2 Supercharged with LPG, Vogue SE 2007 Buckingham Blue
RR 2002 4.4 V8 Zambesi Silver

Last edited by Dijit on 26th Oct 2024 8:28pm. Edited 2 times in total

dhallworth wrote:

Removing the glow plugs is a good idea, however, having removed glow plugs on older diesels before I'm not entirely sure I'd fancy giving it a go! If they snap you're in a whole world of pain.

If it ain't broke.......  Rehab is for quitters!!!

RR 2007 3.6 TDV8 Java Black *
RR 2007 3.6 TDV8 Zermatt silver *
RR 2000 P38 4.6 Met red *
Mercedes 300TE 4-Matic *
Jaguar 420 (1969) *
Nissan 300Z
Citroen XM 2.5TD X 6
Bentley Continental R
Hydrocon Highlander
Hydrocon Hamilton
Hydrocon Huntly
Am told the ones with a * are to be offered for sale! 😳

Departed
LR 1992 110 2.5TD
RR 2000 Holland & Holland 4.6 LPG
RR 4.2 Supercharged with LPG, Vogue SE 2007 Buckingham Blue
RR 2002 4.4 V8 Zambesi Silver

GraemeS wrote:

Is the engine doing anything else that it shouldn't be? Assuming that it's not condensation then it could be unburnt fuel from a faulty injector which should at least make the idle uneven.

Are you sure that it isn't oil smoke, possibly from the intercooler. I would remove the outlet hose from the intercooler to see how much oil comes out.

A fault code should be stored for a faulty injector. Might the loss of rail pressure be due to the PCV leaking?

Oil in the IC would get burnt in the cylinders and create blue smoke. White smoke is oil or diesel vapour and which one it is can easily be identified by the smell. 2012 TDV8 Vogue (L322)

GraemeS wrote:

Are you sure that it isn't oil smoke, possibly from the intercooler. I would remove the outlet hose from the intercooler to see how much oil comes out.

A fault code should be stored for a faulty injector. Might the loss of rail pressure be due to the PCV leaking?

JayGee wrote:

Oil in the IC would get burnt in the cylinders and create blue smoke. White smoke is oil or diesel vapour and which one it is can easily be identified by the smell.

Even if the intercooler was full of oil, remember the smoke starts within 1-2 seconds of the engine firing from stone cold. Even if the exhaust was full of oil it couldn't heat up quickly enough to create the white smoke. The exhaust tailpipes are slightly sooty but not abnormally so IMHO. However there is definitely a strong smell of what I think is diesel.

So let's explore that it's not injectors given how smoothly it runs and let's say the pressure control valve is gubbed allowing the fuel rail pressure to drop, what else could cause the instant white smoke?
Water in the fuel is a possibility.
Petrol in the tank? Not sure and the range was showing 0 miles. I've now added about 4 gallons (of diesel not petrol ) but not started it since.
Air leak somewhere? Would that obliterate whole cities instantly?
Remember this smoke was instantaneous at idle and idle was smooth so I'm assuming the main turbo is contributing very little and the secondary should be stationary.
Also it's not throwing up any fault codes.

Do these random jottings make any sense or trigger any other thoughts? Hands up, I come from L322 3.6 TDV8s so the 4.4 TDV8 is all new to me.

My instincts are that it's something simple and I'm open to there being possibly two faults rather than one catch all solution.

The joys of the eternal optimist!

Thanks for all the comments to date. I'm considering them all and gauging how they meet the criteria. Rehab is for quitters!!!

RR 2007 3.6 TDV8 Java Black *
RR 2007 3.6 TDV8 Zermatt silver *
RR 2000 P38 4.6 Met red *
Mercedes 300TE 4-Matic *
Jaguar 420 (1969) *
Nissan 300Z
Citroen XM 2.5TD X 6
Bentley Continental R
Hydrocon Highlander
Hydrocon Hamilton
Hydrocon Huntly
Am told the ones with a * are to be offered for sale! 😳

Departed
LR 1992 110 2.5TD
RR 2000 Holland & Holland 4.6 LPG
RR 4.2 Supercharged with LPG, Vogue SE 2007 Buckingham Blue
RR 2002 4.4 V8 Zambesi Silver

A specific fault code will be set for each injector for which the fueling cannot be adjusted within the allowed range so as to cause the crankshaft to accelerate at the same rate as the other injectors. It's an ongoing adjustment over time which possibly occurs at idle. P02CD/P02CF/P02D1/P02D3/P02D5/P02D7/P02D9/P02DB

Yes, pressure control valve.