Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 5/2016 200 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Engine moves a lot when first started 200 1989

uid 13809's pic
posted by  Alex Z on  Wed Jun 23 14:25 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Oct 3 04:30 CST 2013
[RELATED]

Possibly because the FPR (Fuel Pressure Regulator) is bad, and hence cannot keep the fuel pressurized.

No. There's a check valve in between the main pump and filter for this purpose.

I am pretty sure that the FPR doesn't have a role when the engine is running, it just stays open and allows fuel to pass through, fuel that has already been pressurized because the prepump and main pump are forcing the fuel through.

Wrong again. The fuel pump supplies way more fuel than the engine needs (or can handle) while running. The FPR is vital in keeping the engine running properly.

--
alex

'89 765T, 174,9xx mi






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Engine moves a lot when first started [200][1989]
posted by  guYom  on Wed Jun 23 01:16 CST 2004 >


<< < > >>



©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.