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Mazda 6 54 plate diesel ts. blowing oil seals, engine pressurising

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This can be due to a clogged crankcase vent, have it checked

Posted on Jun 04, 2010

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Posted on Jan 02, 2017

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Hi. I have a 2006 Toyota Hilux with a 3.0 litre D4D diesel engine. It blows out blue oil smoke for about five seconds on startup. If I perk the car on an upward facing smoke the problem is worse. If I park...


Hi , couple of questions,
1. is it using engine oil?
2. What type of diesel fuel do you burn ?(cheap/premium)
3. Have you ever used fuel additives ?
4. Does the smoke go away after warm up or still there when you put car under load / accelerate hard?

Simple thing first with the engine ticking over lift bonnet/hood and remove the dipstick, have someone lightly rev the engine LIGHTY if you see oil traveling up the dipstick spout , this is a sign of the crankcase pressurising , their is a crankcase breather filter which are obtain overlooked during servicing which can cause e
If you are not burning oil , look for the egr valve it will be coming off the air intake and insure it is clean and operational( this is an emission saving device fitted to diesels which lets the engine re -burn it exhaust gases) it can get clogged with oily residue from the diesel fuel and in fact can be like a tar consistency this clogs/ not functioning correctly can cause power loss and oil deposits making their way into the exhaust system and stops valves seating correctly . On positive it is easy to work at and clean with brake cleaner, then dry and lightly oil to free up then wipe clean.

also worth while and to ensure work on egr was worth while and lasts remove the air intake ducts as these too will be clogged it builds up over time and can reduce the air duct flow by50% this is not cleaned during ordinary servicing! clean with boiling water and washing up liquid sounds strange but worked best for me! Let sit to work using baby bottle /pipe cleaners when clean ensure it is dry completely before refitting I found blowing out with compressor was worth while as you do not want and loose dirt inside as I will make its way through.

final thought which has been very beneficial for me, when carried out the above use only premium fuel( cheaper fuel now is mixed with bio diesel and leaves bad engine deposits ) use diesel fuel additive I have found millers Eco max 4 excellent, double dose first time drive hard in 3rd for a few miles to work its way though you will notice smoke for the first couple of used this is contamination working through system. Let me know how you get on and good luck.

Jan 31, 2014 | Toyota Cars & Trucks

1 Answer

I have 2002 mazda bounty 2.5 diesel when it starts up it runs really rough and blows out blue smoke but comes right when warms up.I replaced glow plugs, fuel and filter, oil and filter 6mths back and it...


firstly change oil every 6000kms and a oil filter every third oil, change ,blue smoke is a sign of oil consumption whitish gray is a sign of excess fuel from worn injection system .How many miles does this vehicle have on it ? Could the valve guides need new seals and the valve cleaned and re-lapped in .then maybe new piston rings ,.Also use the cheapest oil for a diesel you find from a supermarket using expensive long life oils can cause the engine to build up too much carbon clag inside the the engine so cheap oil, and change it often is my advice ,but without a look under the bonnet myself i couldnt even think of whats wrong

Jan 04, 2014 | Cars & Trucks

1 Answer

Mazda 6 1.8 ts 05 constant blue white smoke out of exhaust


It probably has some internal engine damage. If you pull the spark plugs one or more will probably be oil fouled.
You may want to have a compression test done and see if you can find the source of the oil - may be a head gasket.

Aug 27, 2012 | 2005 Mazda 6

1 Answer

Blows oil seal around oilfilter


check to make sure that there isnt an old seal from the previous oil filter still stuck on the oil pump as this will cause oil to leak at that point.
If that is not the case then maybe your engine is pressurising

Oct 09, 2010 | Chevrolet Chevy Cars & Trucks

1 Answer

Oil pomt


Is it a diesel or petrol  engine  ? diesels leak behind the high pressure oil pump - 3 O seals there and if they blow the seals on the big steel oil pipe into the head it will be bad too.

Dec 25, 2009 | 2001 Isuzu Trooper

2 Answers

Recomended weight of diesel oil mazda 2200


diesel engine oil is usaly 15w40

Sep 24, 2009 | 1988 Mazda B2200

1 Answer

Mx5 mk2.5 slight engine oil leak.


Can you tell us more?
How many miles on the car?
Which side of the engine area? Drips after you park etc?
Oil ever low? If so how often do you ad oil?
Any visible oil on engine and bay components under hood?

likely areas for oil leaks may include depending on model and make:
Oil pan gasket seal.
Oil pressure sending unit.
Oil filter installed dry or over tightened at your last oil change.
Oil drain plug loose or plug gasket needs replacing.
Valve cover gasket needs replacing.
Crank shaft seals need replacing.
Distributor seals need replacing.
RTV gasket sealer beyond expected life and need replacing for other engine components, inspection plates or covers.

Sep 21, 2009 | 2002 Mazda Miata

3 Answers

How do i change the apex seals in my 1992 mazda rx7


hey you'll have to do a full teardown of the engine to replace apex seals

Aug 14, 2008 | 1987 Mazda RX-7

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