Volvo RWD 900 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 2/2002 900 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

Tranmission challenge for the experts HELP 900

posted by  rsbrink on  Tue Nov 18 14:58 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Nov 22 21:23 CST 2012
[RELATED]

My 92 940 with 65K miles and AW 03-70L trans shifts strangely when hot.

When cold everything is normal. When hot however when you shift from reverse to drive it is a very soft hardly noticable engagement, and seems to partially engage in forward and then after the car moves forward about 6-12" there is a clunk and it is then really engaged. Before the clunk it takes more throttle/power to make the car move like there is something holding the car from rolling. It is almost like a stuck brake but it isn't. I have changed/flushed the fluid and it didn't do anything. Now I don't know if I should clean the valve body or what.

Does this sound like a sticking accumulator piston or brake piston.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    Tranmission challenge for the experts HELP 900

    posted by  CarlosR on  Fri Nov 28 03:28 CST 2008
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Mon Jun 1 15:19 CST 2009
    [RELATED]

    I had a 93-945 with the AW-71L, was doing something alike, I flushed the fluid maybe 3 times and put Mobil-1 synthetic, also added a bottle of Lucas transmision fix and added an extra cooler in front of the car, cut the cooling lines that go to the radiator and bypassed it with rubber tranny fluid lines. I got the cooler from a GM suv in the junk yard, they all have it, Chrysler minivans they all have it too. They are also sold in the autoparts but 3 times more expensive.
    My car started changing gears much better after that, no more complaints. I don't know if it was the Lucas oil or the cooler fluid since it was all done at the same time. I have used Lucas tranny oil in several very old transmisions and it always worked but a cooler in the front of the car is also very nice.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      Tranmission challenge for the experts HELP 900

      posted by  rsbrink on  Fri Nov 28 13:13 CST 2008
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Thu Nov 22 21:23 CST 2012
      [RELATED]

      Thanks for the info. I was going to try the Lucas trans fix but was worried it might be too think. Maybe the Mobil 1 synthetic fluid was more slipper and that solved the problem? I guess I'll try the Lucas trans fix.







<< < > >>



©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.