06 TD4 fueling / fouling

Evening all

I'm looking for some advice on this: my 06 TD4 recently started running on for a few seconds when the ignition was turned off. Then it started rough running occasionally and then finally cut out. I changed the crankcase breather filter which was absolutely disgusting (despite the car being 'serviced' recently!) It then started and worked OK for a couple more days before rough running and dying once again.

I'm now reasonably sure it's a fueling problem. I have checked the rear pump / filter / sedimenter and all are fine, however I will change the filter tomorrow. From reading other threads, I think that the fuel rail pressure sensor may be at fault and plan to change that as well. However, when I started having a close look in the engine, I found evidence of crankcase pressurisation and sludgy deposits in the intakes. What do you think of these:

https://www.dropbox.com/s/4xeknk4f5w4tl10/IMG_2471.JPG?dl=0

https://www.dropbox.com/s/stleapnzshk6l74/IMG_2472.JPG?dl=0

https://www.dropbox.com/s/d5zu9i9fvra3orl/IMG_2473.JPG?dl=0

The oily deposits in the inlets are about 2-3mm thick in places and there is plenty of evidence of oil spray on the other compenents.

Does anyone have any ideas on what is likely to have caused this? And, secondly, what's the best way to get rid of all that gunk without it going into the engine? Finally, do I need to do anything else to stop it happening again...?!

I should say that I have had owned the car since new and have had an EGR bypass fitted for a few years now - and everything seemed OK/clean when I put it on.

Thanks for any help or advice that you can give.

Regards

BB

If you've got oil in the intake, there may be many things that cause it, but run on is a really dangerous one.

How many miles?

Is the TD4 fitted with a ball bearing turbo or an oldschool oil float one?

Check the turbo output from the compressor and see if it's splattered with oil - your turbo seals may be starting to fail. If they are, the next thing you'll know about it is when the car keeps going at high rpm with the keys out of the ignition!

Thanks for the response. Done 120k. Not sure about the design of turbo, but it's a standard Freelander from 06 - one of the last before Freelander 2 was rolled out so I assume it's the more modern of the 2 designs. But then I know all about assumption being the mother of all...

I'll have a look at the output tomorrow and see what I can find.

Bennyben said:

Thanks for the response. Done 120k. Not sure about the design of turbo, but it's a standard Freelander from 06 - one of the last before Freelander 2 was rolled out so I assume it's the more modern of the 2 designs. But then I know all about assumption being the mother of all...

I'll have a look at the output tomorrow and see what I can find.

Click to expand...

Depending on how you drive it, 120k may be the service life of the turbo...

I used to be big on the BMW forums a couple of years ago and the mid '00s bmw ball bearing turbo seals used to fail and diesel the engine - remember when the oil starts escaping, there's no rev limiter - your engine will spin upto well over 6000 RPM and grenade.

So yeah, best to check the output, if it's failing, this will be your only warning

Some oil in turbo pipes is normal due to vapours from turbo. There's an article on here about cleaning the thicker gunk from inlet manifold, basicaly take it off and get some strong de gunker.