garfield247

garfield247

New Member
Hi all
I have purchased a td4 on a 53 plate with only 37000 miles on the clock.It runs really well and i am well happy on that point.Had the bonnet up the other day and noticed that the EGR vac pipe was off and blanked so i removed the main air hose from the EGR and everything is coated in very thick black oil,is this normal as i was thinking more off a carbon type deposit and not a thick oily one.I know this has been covered before on the forum but i could not find anything about the type of crud you get.
If this is normal can it be left or will it need to be cleaned out,will the vehicle suffer if i dont clean it.Any advice would be welcome
 
clean it, take the egr valve off and clean that too.

all kinds of cleaning solutions recommended on here, I just used parafin, worked well. also worth looking at your crankcase breather filter, as this will kill the engine if it gets blocked.

good luck.
 
Thanks for that it was serviced before i picked it up and it does say that the filter was changed in the service book.
What i really wanted to know is how oily the deposits should be as mine does seem quite wet
 
wouldn't worry to much, mine ranges from wet oily to just down right gungy depending on how often it is cleaned, where/how I've been driving.

first time I did it, it was like treacle
 
Thanks for that its put my mind at rest will keep my eye on the oil level.Just seems a really naff design for it to get that bad
 
I suppose that the oil in the pipes was due to EGR was blanked. I tried to blank the EGR as well (also the EGR vac pipe off and blanked) and after some time I noticed the oil in the pipe as well. When tried to un-blank the EGR vac pipe the oil does not appeared so much.
 
Not really sure i would have thought with the EGR removed and a blanking kit fitted the oil residue would be less.Please correct me if iam wrong
 
Oil in the induction pipes is normal as the crankcase emissions are discharged into the intake system. The difference is when egr is disabled the oil shouldn't become a sticky tar like mess as there is no carbon from the exhaust to mix with it. Once the sticky crap has been cleaned out and if egr is disabled the oil should just pass harmlessly through the system. Change the whole crankcase breather valve assembly rather than just the filter if you are unsure of it's condition.
 
Oil in the intake pipes does serve an additional purpose. Any dust the filter has let through will hopefully stick to the oily pipes and not the piston rings.....
 
Will that help though MHM? The diesels have a high air flowcompared to the petrols, so will the oil have a chance to settle down into a catch tank?
 
I cleaned my EGR and Intake manifold today, it was completely covered in black sticky tar.

There seemed to be a lot of this sticky tar in the cylinder head intakes and the other intakes above it, is this normal?

Sorry could not take any pictures, because of the mucky state I was in.
 
jedi said:
I cleaned my EGR and Intake manifold today, it was completely covered in black sticky tar.

There seemed to be a lot of this sticky tar in the cylinder head intakes and the other intakes above it, is this normal?

Sorry could not take any pictures, because of the mucky state I was in.
Click to expand...


Unfortunately it's completely normal & is all thanks to that design masterstroke known as the egr.
 
Thats rubbish, so EGR= dirty/sticky/gunked up intake, I`d rather vent all this crap into the atmosphere.

Did you know a Cow pollutes more than a car, just by farting and ****ting all day.

I don`t see EGR`s of Cat`s on there backsides?
 
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