Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 7/2005 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

'94 850 NA crankcase pressure issue 850

posted by  someone claiming to be mark on  Wed Jun 22 22:01 CST 2016 [RELATED]

I was having significant pressure in crankcase (glove test) and also blowing blue smoke out the tailpipe after long idle times (lots of traffic here in nyc!) My 850 non-t has over 400K miles, so this was the second time around on the PCV system. The system was not too clogged, and I did the blow test thru the bottom port and it seemed ok. Replaced a number of vacuum hoses, clamps and elbows.

Still have the pressure in the crankcase, but it's way lower then it was. Still also have the blue smoke after long idle times. But the engine is running absolutely fantastic - perfect idle and improved response - best its been in years!

Whats causing the blue smoke and still high pressure? Are the valve seals shot? Anything else to check? I REALLY want to keep this car but need to know if the engine is going bad.

I appreciate any suggestions.
thanks
mark





THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New '94 850 NA crankcase pressure issue [850]
posted by  someone claiming to be mark  on Wed Jun 22 22:01 CST 2016 >


<< < > >>



©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.