Volvo RWD S90-V90 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 10/2018 S90-V90 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

shift issue S90-V90

posted by  samwat1 on  Mon Dec 28 14:04 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Jan 4 13:05 CST 2010
[RELATED]

I am the new owner of a 1997 S90 in mint condition with 117,000 miles. When the car shifts from 1st to 2nd, there is a noticeable hesitation and shudder, then it goes smoothly after that. The same thing happens on the down shift from 2nd to 1st. I was told by the previous owner that the problem is in a sensor, and not the transmission. Any help out there?








  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    shift issue S90-V90

    uid 11021's pic
    posted by  dewfpo on  Tue Dec 29 05:29 CST 2009
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Thu Oct 23 18:34 CST 2014
    [RELATED]

    Could be a sensor or a solenoid valve but first things first.

    When the last time you changed the ATF?

    DEWFPO
    --
    1998 S90 083,228 and 1995 964 154,100








    •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

      shift issue S90-V90

      posted by  samwat1 on  Tue Dec 29 13:33 CST 2009
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Mon Jan 4 13:05 CST 2010
      [RELATED]

      I was told by the previous owner that the 100k service had been done(transmission flush, timing chain, etc), so I'm assuming that that was not an issue. He was told by his mechanic that it was a sensor in the transmission and would cost around $100 to fix.








      •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

        shift issue S90-V90

        uid 11021's pic
        posted by  dewfpo on  Thu Dec 31 07:47 CST 2009
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Thu Oct 23 18:34 CST 2014
        [RELATED]

        There are 3 solenoid valves located in the valve body. A flush may solve the problem, if not, find out which solenoid valve is the problem and all you have to do is drain and drop the pan, one connector and the solenoid is out.

        DEWFPO
        --
        1998 S90 083,228 and 1995 964 154,100








      •   REPLY TO THIS MESSAGE    PRINT   SAVE 

        shift issue S90-V90

        posted by  david hunter on  Wed Dec 30 07:48 CST 2009
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Mon Jun 30 22:10 CST 2014
        [RELATED]

        Info from the owner or mechanic sounds a bit fishy. There is no timing chain, but there is a belt which gets changed at 70K. There is no tranny fluid flush or change at 100K. There is no sensor "in" the transmission. Externally there is a temp sensor, speed sensor and gear position sensor, a fault on any of these will trigger a flashing light.
        Although Volvo do not talk about flushing real world experience here and elsewhere says it is beneficial. I would do that first, preferably with synthetic ATF.
        --
        David Hunter








        •   REPLY TO THIS MESSAGE    PRINT   SAVE 

          shift issue S90-V90

          uid 19's pic
          posted by  jbowers on  Wed Dec 30 10:43 CST 2009
          Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
          last visit: Sun Jan 22 13:49 CST 2012
          [RELATED]

          David has given you good information.

          Building on what he says I would start with a fluid flush with good Mobil synthetic ATF. There are many DIY descriptions for doing it here. (Real easy)

          About the only thing that would make the symptom you discribe would be sticking solinod valve which the flush may cure. If not the valve is behind the bottom cover on the transmission and shouldn't cost a lot to replace.

          Good luck.
          --
          '96 965, 16' wheels, Michelin Pilot Sports, rear 18mm bar + Koni, 201 HP cams, 149K. Put 200K on '85 745 TD.







<< < > >>



©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.