This post is from August 2010 so Jim wont be replying.
Smoke when you accelerate hard could be from a split intercooler pipe. Next time you drive past a wall open the window and accelerate hard. If you hear a whistle then it's a split pipe.

 

smoke during acceleration

hi jim Could you mail me the details of the mod/upgrade as I reckon my 1.6 TDCi is drawing far too much oil through the breather pipe. For the first 18 months negligible oil consumption, now it is noticeable as is the smoke when accelerating hard thanks in advance

 

Hi all, is there any benifit to upgrading the to the new hose with out doing the PCM update?

 

many thanks for your responses. When funds permit I might look at the modified hose and a PCM update but I am slightly reluctant to hand over £200 for Fraud to correct a design fault. I need to get the timing belt changed first.

Does the problem possibly lie with the oil separator? Should this separate liquid oil from oil vapour? Does the oil separator become filled with sludge over time and if so would it benefit from a removal and clean? I can't believe how oily these engines are!

I have read on other posts that you should not fill the engine oil to the maximum on the dipstick as this this leads to more oil making its way out of the crank case breather into rubber hoses. Is this right and would it help?

Thanks in advance for advice you can offer.

 

I think it's to do with the turbo on the boost dump as it doesn't have a dump valve! When you create boost pressure then let off the throttle you get a slight back pressure in the intake!
There is a modified hose and PCM update to cure this issue!

thanks for info about the modified hose

 

I think it's to do with the turbo on the boost dump as it doesn't have a dump valve! When you create boost pressure then let off the throttle you get a slight back pressure in the intake!
There is a modified hose and PCM update to cure this issue!

 

I think it's partly the Positive Crankcase ventilation that is the cause to suck oil fumes back in & burn then
Not certain why they are going against the flow unless some of it is after engine switched off

 

After finding the air filter was contaminated with oil I replaced it. At the same time I degreased and cleaned the rubber hoses joining the air filter to the turbo and the crank case breather which were dirty with oil. I also cleaned the maf sensor with contact cleaner and now everything is spotless.

It appears the oil is coming down from the crank case breather but how is it then flowing against the airflow and contaminating the maf sensor and the air filter? Is there an underlying problem that causes this or is it just a characteristic of the 1.6 tdci engine?

Should I be checking and cleaning the above parts on a say a 3 monthly basis or do I need to be doing something else? It's a 04 Ghia on 124k by the way.

 

Oil Catch Can

MarkDon

I own a Mazda 3 1.6 Turbo Diesel. I believe the 1.6 Turbo Diesel engine is the same as that fitted to the Ford Focus. The problem with the Air Sensor ( MAF) getting covered in oil as been mentioned on many forums.

I decided to fit an Oil Catch.

My write is here with photographs. Unfortunately you have to register to see the photographs.

" http://www.mazda3forums.co.uk/index.php?topic=9546.0 "

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Hope someone finds this useful.

Just one point if someone could help.

I cannot for the life of me figure out how to get to and remove the bottom Turbo Oil Banjo connection. I believe it is fitted very close to the oil cooler.

What parts need to be removed to get to the Bottom Turbo Oil Banjo Connection.

Thank you in advice for any information/advice you can offer.

 

When i used to mess around with cars in my younger days if the oil breather to the afm was pumping too much back into the system there were two routes to take.

1) blank the hole in the air intake pipe, then fit a small filter (k&n sell them) that fits into the breather pipe, this was the cheapest option. This allowed the breather to "breathe" but it breathes to atmosphere. The problem with this is the oil vapour is free to spray all over the bay.

2) if you wanted your bay to stay clean, blank the pipe as above, then fit an oil catch tank onto the breather pipe, pref one with a level on so you can see when its full. This, suprisingly enough, catches any oil and has a vent to allow excess pressure to escape to atmosphere. Tanks generally cost around £60-100, but this totaly stops oil being recirculated into the air intake, saving time and money on cleaning the afm all the time.

Just thought id add this incase anyone was getting sick.

 

Try cleaning out the maf sensor and I will have a look at work today for anything that matches your description!

They are supposed to have oil in the intake and it looks alot but it isn't really

 

Poor fuel consumption, loss of power at approx 29000 rpm momentarily then it picks up again and I stall quite often which is quite embarrassing as I drive for a living. There does seem to be an excessive amount of oil in the air intake!

 

The issue with the pipe is not associated with the 2.0 litre! What are the problems you are experiencing? I may be able to help

 

Hi crash19999, my 2003 2.0 tdci has been with Ford today and they have failed to diagnose a problem. I gave them a printout of this thread, but they didn't seem very interested and actually said that the pipe in question is not fitted to my car! Can you confirm that this is an issue with the 2.0ltr as well as the 1.6ltr? I have a horrible feeling that they are not listening to me!

 

I'm glad it helps!!!

 

Hi crash19999, I have a Ford focus C-Max 2.0ltr diesel, which is using a lot of fuel (approx 28mpg) and loses power at about 28000 rpm. I have looked in the air inlet and there does seem to be an excess of oil.

This issue has been doing my head in for ages now and has cost money in failed fixes. Thanks for your post, I think I'm now on the right track, I'll let you know how I get on.

Gratefully yours Seamus

 

here is the info for oil contamination of maf sensor pics are in order

WDS/IDS - Powertrain Control Module (PCM) - Reprogramming
• NOTE: Use WDS CD B45 / IDS 46 DVD or a later version.
1. Connect the WDS/IDS portable diagnostic unit to the vehicle and establish communication (VID the vehicle).

• Confirm the vehicle details are correct.

2. Check for any stored Diagnostic trouble codes (DTCs) related to this concern.

• If DTCs P1101, P1103 or P2279 are stored in the PCM, go to next step.

• If no or other DTCs are stored, check the correct PCM calibration (see table below) and check for other reasons relating to the customer concern.

3. Reprogram the PCM using WDS/IDS.

• Select the correct calbration from the following table.

Calibration overview for 1.6L Duratorq-TDCI (DV) Diesel
TransaxleEmission levelOld calibrationNew calibration for PCM Reprogramming5-Speed Manual TransaxleStage 33M51-12A650-MH*3M51-12A650-MJ5-Speed Manual TransaxleStage 34M51-12A650-NF*4M51-12A650-NGAutomatic Transaxle (CFT23)Stage 34M51-12A650-PD*4M51-12A650-PE5-Speed Manual TransaxleStage 44M51-12A650-KG *4M51-12A650-KHAutomatic Transaxle (CFT23)Stage 35M51-12A650-TB*5M51-12A650-TC/TD5-Speed Manual TransaxleStage 45M51-12A650-UA 5M51-12A650-UB5-Speed Manual TransaxleStage 35M51-12A650-LB*5M51-12A650-LC Automatic Transaxle (CFT23)Stage 46M51-12A650-CC6M51-12A650-CGAutomatic Transaxle (CFT23)Stage 37M51-12A650-TB*7M51-12A650-TD5-Speed Manual TransaxleStage 47M51-12A650-UA7M51-12A650-UC
*and older version
4. Disconnect WDS/IDS from the vehicle.

Check the oil level of the engine
1. NOTE: If the engine has been overfilled this can lead to oil overflow into the air cleaner outlet hose.
Check the oil level and adjust as required.

SEE PIC 1
1. Remove the engine upper cover.
2. Remove the air cleaner outlet hose.

SEE PIC 2
3. Check the design of the air cleaner outlet hose and compare with the illustration that shows physical changes between the <MF> and <MG> levels.

• Detach the air cleaner outlet hose clamps.

• Detach the positive crankcase ventilation (PCV) hose quick release coupling.

1. Old level with Part Number: 3M51-9A673-MF
2. New level with Part Number: 3M51-9A673-MG
• If the latest air cleaner outlet hose (3M51-9A673-MG or later) is installed, do NOT install a new one unless you can clearly observe a leak from the joints from the positive crankcase ventilation (PCV) hose or the air cleaner outlet hoses. Go to <Check the air cleaner housing and the air cleaner outlet hose>.
• If an older level is installed, install a new air cleaner outlet hose (see Parts Required).
• Go to next step.

SEE PIC 3
1. NOTE: Oil overflow from the engine will be increased if there is a large negative pressure in the air cleaner outlet hose due to a blockage anywhere from the air cleaner housing to the turbocharger inlet.
Detach the air cleaner quick release from the air cleaner and remove the air cleaner.

• Check for any blockages in the air filter housing or the air cleaner outlet hose. Remove if reqiured.

• Make sure that the inside of the air cleaner outlet hose and the PCV hose are clean and free from any oil residue. Clean the air filter housing and the air cleaner outlet hose with brake cleaner.

• Fully dry the components with compressed air.

• Go to next step.

SEE PIC 4
1. Remove the MAF sensor.

SEE PIC 5
2.

CAUTION: Never use any kind of mechanical cleaning equipment like tissues, brushes etc. This leads to damage of the MAF sensor element.
• NOTE: Use brake cleaner only.
Thoroughly clean the MAF sensor with brake cleaner.

• 2.
  CAUTION: Compressed air system must have oil and water separator. The air needs to be directed towards the front of the sensor - the mesh side. Hold a distance of at least 40 cm to the MAF sensor. Closer use may lead to damage of the sensor element.
• Fully dry the MAF sensor with compressed air.

3. To install, reverse the removal procedure.

 

Hi bug!
I will post the info for you tonight

Ive been looking for this info for a while as well. Nice one Crash.

 

Hi bug!
I will post the info for you tonight

 

hi jim frost
there is a dealer update for this issue if you pm me your email i will send you a copy and anyone else needing it can have one too!
it involves a pcm update and a new turbo inlet hose it tells you how to clean the sensor and how to check if you already have the modified hose!!
cheers
matt

HI, chrisaz666 I have trobble with OIL in pipes can I have any info you have please BUG pab3@talktalk.net.

 

hi jim frost
there is a dealer update for this issue if you pm me your email i will send you a copy and anyone else needing it can have one too!
it involves a pcm update and a new turbo inlet hose it tells you how to clean the sensor and how to check if you already have the modified hose!!
cheers
matt

Hi.

Sorry to open up a dead thread, but does anyone have the information quoted here.

Ford have refused to give me this information unless I take my car in to them to do the work for this issue.

 

Hi Guys,

I have a '05 1.6TDCi Focus Zetec (110bhp)Estate that I think has the same engine as the CMAX. It seems to have a fair amount (more than I'd expect to see) of oil in the breather pipe. Could someone send me whatever info they have on this update/upgrade/mod(some pictures would probably help).

Thanks

Tony

 

Hi Matt

Could you mail me the details of the mod/upgrade as I reckon my 1.6 TDCi is drawing far too much oil through the breather pipe. For the first 18 months negligible oil consumption, now it is noticeable as is the smoke when accelerating hard.

Best Regards

Bob

 

Jim_frost,
Did your recent fix cure your powerloss problem??

 

Not sure about the cmax but most cars have a oil breather pipe from the topcover of the engine. As the oil warms some vapour is released and enters the air inlet but there shouldn't be an excessive amount.