Car Is Emitting Smoke Since I Have Had Servicing

[arak81]

My Smoke problem is still there. Its definitely not vapour as i can smell burnt fuel or oil (don't know what smells what). is it possible to smoke from wrong oil or oil filter. I have noticed smoking since i have had my car serviced. I messed with MAF Sensor initially but it was replaced with correct one. So i dont think there is anything wrong with MAF now. besides there is not fault code regarding MAF which i used to have when I used wrong one.

 

What i have had my car serviced with is

Oil - Total Quartz Ineo ECS 5W30 bought from ebay for £25.49

Oil Filter - Genuine Peugeot/Citroen 1.4/1.6 HDI Oil Filter 1109AY & Washer 031340 DV6 Engine bought from ebay for £5.82

Air filter + Cabin filter bought from urocarparts

Last year I did service with

Oil- TRIPLE QX Engine Oil5w30 Fully Synthetic (Low Saps C2) Engine Oil 5Ltr

Oil Filter - Bosch Oil Filter

Fuel Filter - Mann Fuel Filter

 

I have never seen smoke emitting from the car before. 

 

Can some expert share their knowledge please. thank you.

[arak81]

Can anyone advise me please wheat can I start looking at to investigate the problem..I have done bit of research and it seems diesel car shouldn't be smoking even not in winter..if car smokes there must be sonething wrong..

[paul.h]

I can not add anything more than before when you first posted about this and you have checked the things that I can think of that could cause smoke from the exhaust. Have all the additives you put in the fuel tank been used up yet and fresh diesel put in ?

 

The smoke is either water, burning oil or soot from the wrong fuel/air mixture or unburnt fuel.

 

Water:

- on first starting you will get steam showing out of the exhaust until the exhaust warms up and is normal.

- if you have a cylinder head gasket leak then coolant can get in to the cylinders and come out of the exhaust as steam. In this case the coolant level will gradually fall.

 

Burning oil which may be slightly blueish smoke. The oil level would be expected to gradually reduce if this is the reason. Possible causes can include:

-  too high an oil level.

- wear in the engine such as the valve guides, pistons/cylinders.

- worn turbo bearings.

 

Wrong fuel/air mixture so the engine is running rich (not enough air) or unburnt fuel. Possible causes could include:

- temperature sensor fault.

- blocked air filter - maybe it has not been put in properly.

- air leak.

- egr valve problem.

- MAF sensor problem.

- fuel injector problem.

- low cylinder pressure so the fuel is not burning. Possibly a valve not seating properly or damaged or cylinder wear.

[arak81]

Thank you Paul.h for all of those informations...what about the oil and oil filter I used? because smoking started after the servicing and it only happens from cold starting and sometimes at idle..colour is whitish with burning smell.fuel additive should have finished by now as I have already driven 500miles and filled the tanks with new fuel couple of times.if there was any problem with any sensor I believe I should have fault code..but I have checked with my OBD tool..there is none except p1351 which relates glow plugs and its been there for more than six months now.

[Rookie2]

arak81

You first need to establish what is causing the smoke.

If it is oil, then you need to establish how the oil is getting into the combustion chamber.

 

When the engine is cold (and switched off), take the air inlet pipe to the turbo off.

Look inside the pipe, is it coated in oil ?

Look inside the turbo, are the turbo vanes coated in oil?

Do the vanes  look damaged as if something has passed through the turbo ?

Get hold of the Turbo cartridge with your fingers and see if you get any movement, slight in and out movement is OK, side to side movement indicates a problem.

 

Take the hoses off the intercooler and check to see if the intercooler has oil in it ?

 

As Paul H has already said, it is a case of being methodical and working your way through the obvious things until you come to what can only be the problem.

 

You have either smoke or steam emanating from your exhaust.

If you are not losing coolant then it must be oil

If it is oil then you must establish how and where the oil is entering the combustion system.

 

Some times a problem can seem daunting but just start with simple basics and you will find the problem. Let us know where you find oil within the air induction system and we'll help you from there

 

cheers

[paul.h]

If it is using oil and is enough to be causing smoke all the time, I would think you should notice the oil level is lower if it is 500 miles since you last checked it on the dip stick. So I would check the oil level first as well as the coolant level, then we may be able to forget about these.

 

I do not think the type of oil and filter you have used would be causing the smoke since the oil is the same viscosity as the oil you used before (5w-30) - if it had been a lower viscosity then that would be a different matter.

 

When we used our C4 today, for the first few miles I noticed in the rear mirror I could see smoke from the back for a few miles whilst the exhaust warmed up and then it stopped. But it was only 3°C outside and a bit foggy, so this was just water vapour and normal.

[arak81]

I believe i have done this check before and didn't find any symbol of oil..but again today i took that hose out and checked. there were a drop of black oil on the mouth of the turbo (as you can see in the picture) and felt inside wall of the pipe. it appeared to me that it was bit slippery (i don't have any idea how it should be. completely dry and clean or bit of dirty water or oil) ...turbo fans look ok..and clean.    I also tried to feel as much inside as possible of the turbo side of the hose and it seemed to me that there was a bit of oil  inside wall of the hose. again i don't have any idea how it should be.

 

I have uploaded some photos for you guys to have a look how i found these checks. car was left outside for couple of hours after driving around 20miles when i carried out these checks.

 

Other thing is, there were no sign of coolant or engine oil reducing.

 

I am guessing this smoke can be cleaning the soot of dpf  but how come when the engine runs in the morning from freezing temperature and in couple of minutes it starts regenerating the dpf!!!!  as far as i know soot to be cleaned way the dpf needs to be in high temperature. can it be built up carbon in the exhaust..someone said me to jetwash through the exhaust pipe.  how does it sound? 

Edited January 25, 2017 by arak81

[paul.h]

I think Rookie2 will be able to comment on the photos.

 

I had a turbo fail on a petrol Saab and for a few months before, when I started the car there was a blueish cloud of smoke out of the exhaust but only for a few seconds, as it got worse it would give smoke out of the exhaust when accelerating. On the day it failed on the M6 (towing a caravan), it was a bit rattly when accelerating and then when on the exit slip road the car was surrounded in a cloud of white smoke from the exhaust, so I stopped the car and got the RAC to recover it to a garage. It needed a new turbo, lambda sensor, exhaust catalyst.

[coastline taxis]

sounds like its your maf. I know you say that youve replaced it but if its a none original then basicly there chit. the maf takss the air temperature on start up and adjust fuel . then as engine warms up the ecu takes the actual enginge temperature from the enginge off the temperature sender. your over fueling on startup due to maf then when warm getting the correct values it readjusts the fuel .  Did you change fuel filter aswell

[arak81]

Hi Coastline taxis, No, I didn't change fuel filter this time,but last year I had it done and since then car ran only 10k. other thing is if MAF sensor was not the correct one then engine should give me a fault code I believe and that's what ot did when I used another one bought from ebay.the one I am using now is the original one but 2nd hand. Edited January 26, 2017 by arak81

[coastline taxis]

Thats the trouble with a maf they dont always throw a code up. do you no anyone with a 1.6 that you could try there maf on your car

[paul.h]

If your code reader can give live data you could see what temperature the MAF is saying before starting the car. The inlet air temp (IAT or AIT) should be similar to the outside air temp, about -1°C today. It will go up a bit as the engine area warms up.

 

However, looking again at your photo of the Lexia screen on the dpf, it gives the flow meter air temp as 18°C so maybe it is ok.

[Rookie2]

Unfortunately it looks like your turbo seals have gone. I suspect it will get worse as time goes on and unfortunately there is no repair possible, only eventual replacement. How long will they last ?, no one knows, it could be 2 days or 2 years.

 

You have oil being put into the pressurised air from the exhaust side of the turbo and being fed through the intercooler into the intake side of the turbo.

 

This oil will also be affecting the dpf

[arak81]

I didn't get what you meant Rookie2. Did you come up with the decision after seeing the pictures..in that case I can take the car to the garage and ask the people to check if oil is leaking or not. I show the car to a mechanic few days ago while I was doing my MOT, he confirmed me that my turbo is working fine and there was nothing wrong with the car. Smoke is being emitted due to the cold weather though i am not convinced as i din't see this smoke last year winter. 

 

Thanks Paul.h. I also think that MAF sensor is working as it should be.

[Rookie2]

Hi

 

You have engine oil at both ends of your turbo. This oil has to be entering there from somewhere. All that is supposed top be travelling through there is "Air".

The oil is coming from somewhere and the most obvious and usual place is the Oil Seals in the Turbo.

 

Yes your turbo will probably be working OK. The oil travelling through it however will be affecting the DPF.

 

As I said, this could go on for a very very long time or it could go within the next half hour.

 

The oil you can see on the inlet side of the Turbo (Picture 1), is coming from the outlet side of the turbo and is travelling through the intercooler system and back through the Turbo. Your turbo seals have gone.

The o9nly other point of entry for oil is the rocker cover breather pipe as it enters the air intake pipe.

If for any reason your engine is not breathing correctly, either through blockage or valve wear etc, then oil will be pushed through the breather pipe into the air induction pipeworkhttp://www.hyperchips.co.uk/images/hdi-engine.png  The small white pipe coming out of the rocker cover to the right and slightly below "HDI 16"

 

 

[paul.h]

'is coming from the outlet side of the turbo and is travelling through the intercooler system and back through the Turbo'

 

This has me a bit confused, I thought the clean air outlet of the turbo goes straight to the intercooler and in to the engine. The exhaust side of the turbo goes straight to the exhaust system (cat/dpf/exhaust).

[Rookie2]

Sorry, my badly worded sentence above.

 

This photo probably shows it better than I can describe it

 

 

http://www.turbosmart.com.au/wp-content/uploads/2012/09/intercooler2.jpg

[Rookie2]

The only thing the image does not show is the recycled air collected from the rocker cover and piped into the fresh air flow.

If you have compression in your engine block caused by poor valves or piston rings etc, then that will pressure the crank case and send oil though the breather pipe into the turbo.

As well as the seals possibly leaking on the Turbo itself which lets the oil leak past the fan blades into the air stream.

 

If you imagine the fan of the turbo spinning up at 20,000 rpm, nice and hot and then drops of oil suddenly start hitting the fan blades, then you can imagine that wear will take place, then damage and imbalance, Which will be magnified if the oil is not changed often and is contaminated with carbon/dirt etc.

 

I still have the original turbo off my C8 so will take some photo's and post them tomorrow showing the blade damage caused by oil, then particles from the bearings as they broke up and then particles from the turbo body as the turbine ran after the bearings had gone.

 

I am just trying to emphasise how something as innocent looking as oil on the fan blade is a precursor to a completely blown and expensive turbo problem.