Hard shifting tip

[mackgoo]

Hi. Starting yesterday the shifting behavior for 4th and 5th has changed. The only way I can explain is typically the shifts are "soft" now going into 4th and 5th the shifts are more abrupt. Anyone understand what I'm explaining? Any ideas what's going on. What can be done to resolve this?

[pkust]

I have periodically experienced the same symptoms on the 4th to 5th up shift, It seemed to lessen after I changed the trans fluid and filter, my guess is a slightly sticking solenoid in the pressure circuit on the up shift. I have noticed that if you time the shift with letting up on the gas, as if you were shifting, it will shift normally with out the slamming. If you haven't changed your fluid, try that first, clean fluid if very important with these boxes. Hope this gives you some direction. :drive:

[mackgoo]

Thanks, that's first on my list. After checking level.