Volvo AWD 850 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 3/2007 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Where is the evap valve? 850

The term can be applied to the evaporator on the AC system or the evaporative vapour control system for the emmissions controls. Others have replied to the AC system, so I will address the evaporative purge control system. The evap valve that would set off the check engine (Lamda or MIL) light is located just behind the radiator, near the top, left (driver's) side. On my 1994 turbo, it was located inside a foam cylindrical shroud about 2" dia. x 3 0r 4" long. Mine had failed by being stuck in the partially open position, and it can be tested simply by blowing or sucking on the stright-through port path. When the engine is cold, and without a signal from the ECU, it should not allow flow. If it does, it will set off an EVAP system code. A replacement for mine cost ~$200 canadian.

Doug






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Where is the evap valve? [850]
posted by  someone claiming to be On the ball!!  on Thu Jul 17 10:46 CST 2003 >


<< < > >>



©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.