Volvo AWD 850 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 2/2004 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

brake problem 850

posted by  KlausC on  Fri May 28 12:01 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

There is a check valve in the vacuum line between the engine and booster. A little tough to get off because of the barbs in the valve, but it could be going bad.

Best booster "test" is to place foot firmly on the brake and then start the engine. The pedal should go down about an inch when vacuum builds. Total failure of the check valve results in no power assist.

Check any codes in A-3.

Klaus
--
Why are Volvos so endearing? Its just a car.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New brake problem [850]
posted by  Blk87  on Fri May 28 11:27 CST 2010 >


<< < > >>



©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.