The transmission in my 91 940SE is slipping somewhat. It seems to be gliding between 2nd and 3rd, but acts normally when I manually shift into second-the problen only arises when in 'D'. Turning the overdrive on/off does not seem to have an effect on the slipping.
This began abruptly last summer, and I flushed the fluid with no effect, but it hasn't worsened.
Any thoughts...