Volvo RWD 900 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 2/2024 900 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

1991 940 idle issue 900 1991

Hi Peter,

Yes, idle is idle, and it is what it is. Boys will be boys. The explanation I heard before was the vacuum generated by deceleration with the throttle closed and its effect on oil pulled past the rings and valve stems was a result of the fuel economy inspired injector cut LH2.4 does on throttle down from speed. Does this make sense? The idle valve opens to keep down the blowby until the speed returns to match the pedal position. Downhill, yes!
--
Art Benstein near Baltimore

"Our A students become professors. Our B students go to law school. Our C students rule the world." - Henry Rosovsky
Henry Rosovsky was a longtime Harvard professor and administrator. An expert in Japanese economic history, the elder Rosovsky was chair of the economics department from 1969 to 1972 and served as dean of the Faculty of Arts and Sciences from 1973 to 1984 and again from 1990 to 1991.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 1991 940 idle issue
posted by  OwenF  on Wed Jan 23 06:29 CST 2019 >


<< < > >>



©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.