Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 10/2003 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

850 Oil Leak and Lots of Smoke 850 1995

I have a ’95 850 Turbo that I have been struggling to find the cause of an oil leak for. I have fairly large amounts of blue smoke coming out of the tailpipe intermittently, but especially when accelerating up hills. The burning oil smell is now coming through my ventilation system and I can smell it in the car. When I pop the hood I can see oil that has leaked on top of the engine, around the oil filler cap. And after sitting for 36 hours, it produces 3 puddles of oil, each about 6 inches across. Two of the oil puddles are driver’s side, very close to center- one closer to the front and the other about 1ft and ½ behind that one. The other is on the passenger’s side.

I have already:
Rebuilt the turbo
Cleaned out PCV system twice and replaced the clogged Ventilator box
Replaced the leaking pressure hose for oil cooler
Replaced the oil pan gasket

Also of note, my check engine light indicates a bad O2 Sensor.

Any ideas?








  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    850 Oil Leak and Lots of Smoke 850 1995

    It is time to clean the engine/tranny and find out where the oil is coming from. I hate to say this, but get a compresion test done. It sounds like you may have something bad going on.
    Cleaning/replacing the oil breather system hoses and separator box should have cured the crankcase ventilation. But if the damage was already done, you may also have a leaky rear main seal and cam seals.

    Klaus
    --
    Please answer, we need to know if the advice is good or bad. The 164 has a new home, all I am left with are 2 turbos :)








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    850 Oil Leak and Lots of Smoke 850 1995

    Drivers side usually is the rear engine seal. Try cleaning the engine to maybe see the source better.







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.