Oil in air filter hose?

goofy gorilla · 10 Jul 2019

Ok..just an update..I checked all pipes, all clear, I took off the hose that I put in..its all clear , just a slight hint of oil, checked air filter too all nice n clean. I located the boost pressure switch, took it off, was a bit oily and cleaned it out, put it back and took car for drive...still got the problem..might try a new boost pressure sensor, ordered one from eurocarparts about £27 , worth a try... see pics

Keithmac · 10 Jul 2019

Thats an intake temperature sensor, my Kuga one looked same but cleaned up fine with a few squirts of brake cleaner.

goofy gorilla · 11 Jul 2019

Are you sure?.thought it was boost pressure sensor, lots like that on Ebay all say its boost pressure sensor. So where is the boost pressure sensor then?

Keithmac · 11 Jul 2019

Sorry it does both intake temp and manifold pressure (just had a look).

Does look pretty bunged up!.

Seem to be selling new for £40 ish so I wouldn't risk a 2nd hand one at that.

goofy gorilla · 11 Jul 2019

I got one to pick up from eurocarparts..thought I'd clean this one first but no difference..will try new one over weekend..dreading if its the turbo..

Keithmac · 11 Jul 2019

Don't suppose you could take a picture if the turbo?, if its like ours it will be buried behind the engine in no-mans land!.

Our 2013 has a servo to control the variable vane turbo, yours may still use a boost control solenoid.

Unfortunately I've read of quite few turbo failures on Fords with the Variable Vane Turbos.

My mate had an earlier 1.6 diesel turbo, Ford decided in their wisdom to fit a filter on the turbo oil supply line (which blocked up unsurprisingly), took his turbo and his engine out..

goofy gorilla · 11 Jul 2019

My turbo is at the top of the engine..under heatshied..see pic..easily accessible by a mechanic but not me..

Burnerman · 12 Jul 2019

It looks very much like a derivative of the DV6 motor.....tiny turbo with the oil feed / strainer under that allen bolt.
If the turbo is failing it blows lots of smoke, and when replacing its recommended to drop the sump to clean the oil strainer and also remove the filter under that banjo bolt.
To be honest I'm not sure why that filter should ever block - after all its on the main oil pressure feed directly after the engine oil filter so all should be clean anyway.
For sure it may restrict oil due to its presence but not block up.
I've known this motor to do 200+k miles without issues so failure isn't guaranteed so long as it gets an oil service, 12.5k usually recommended but I do them at 10k.
John

goofy gorilla · 13 Jul 2019

Turbo doesn't blow out smoke..in, fact it works very well , when foot down, just limp mode kicks on.

Burnerman · 13 Jul 2019

In which case the turbo seals and bearings are intact.....its just the electronic actuators that alter the boost and vane position which is giving the issue, I think.
I can't however, suggest that you replace any particular item as it could cost you lots of cash unnecessarily - I've been down that road too many times before! Hence the need for a professional diagnostic.
John

SpecialK · 13 Jul 2019

Can you get hold of the actuator and move it to move the veins? Its possible it runs on a vacuum system, So check all the pipes are OK and in correct positions! (see some have been replaced?)

goofy gorilla · 14 Jul 2019

Ok..thanks seems like a simple test for a garage to do..to see if actuator is seized or doesn't do what its suppose to..is this part of the turbo or can it be bought separately, mine is a mk3 focus.

SpecialK · 14 Jul 2019

They normally seize if the fins inside the turbo are caked with deposits, seems unlikely on a low mileage engine! If you take it to a decent garage it should be a fairly easy diagnosis...

Davienelson86 · 6 Dec 2019

Hi, did you get to the bottom of this? My Ford Focus is throwing up the same fault. I have a replaced the turbo and no joy.

Oil in air filter hose?

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