Volvo RWD 900 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 11/2009 900 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

RPM surges suddenly 900

posted by  jotvolvo on  Tue Feb 8 09:18 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 12 08:43 CST 2009
[RELATED]

Hi All
1991, 940SE, 263K miles. RPM suddenly goes 500-600 up while driving at 65-70MPH and comes down by itself without the involvment of gas pedal. No gear shifting happens and car does not get any more power when the RPM goes up. What should I look into?
Thanks








  REPLY TO THIS MESSAGE    PRINT   SAVE 

RPM surges suddenly 900

posted by  rjk on  Wed Feb 9 10:22 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sat Dec 12 12:30 CST 2009
[RELATED]

Does the engine actually surge with an increase in car speed? Or is it just an indication on the tach without any change in speed?








  REPLY TO THIS MESSAGE    PRINT   SAVE 

RPM surges suddenly 900

posted by  jotvolvo on  Thu Feb 10 03:20 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 12 08:43 CST 2009
[RELATED]

Hi
This surge comes down by itself after few seconds and does not increase the power of the car or speed up the car. This indication is on the tach and I can feel that engine RPM has gone up.
Thanks








  REPLY TO THIS MESSAGE    PRINT   SAVE 

RPM surges suddenly 900

posted by  rjk on  Fri Feb 11 12:07 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sat Dec 12 12:30 CST 2009
[RELATED]

An increase in engine speed without an increase in car speed makes me think there is slippage in the tranny. I'd start by checking the tranny fluid level.








  REPLY TO THIS MESSAGE    PRINT   SAVE 

RPM surges suddenly 900

posted by  Steve on  Tue Feb 8 11:08 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 07:16 CST 2014
[RELATED]

How long does the surge last? Does it occur at steady throttle or while accelerating/decelerating?







<< < > >>



©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.