Originally Posted by Archon
If your fluid is in good shape, and at proper level and you don't see an improvement over the next couple of days, it would be time to move on.
Fluid level is a bit high now with this but no improvement after ~20 miles.
I actually attempted to cut the brown wire to the solenoid. My understanding is that this would only solve the problem if the solenoid was stuck open mechanically. If it is simply shorting internally then cutting the wire wouldn't accomplish anything as the short is further up the line (towards the tranny).
The problem got better, but isn't completely gone. Still upshifts a bit early, and downshifts a bit late. The 1-2 shift is a bit jerky too.
Looks like it'* time to replace the TCC solenoid assembly. Thanks for the help thus far though!
Does anyone have a Seattle area transmission shop they recommend? I know a great one in Vanc, BC from when I lived there, but don't know any here in Seattle.