Strange behavior on downshift from high

[hufhouse]

My 2000 Montana has suddenly developed an annoying problem. It has about 92,000 miles on it.

When I am on the open road going about 45 MPH, and I start to go up a slight hill or I want to accelerate a little, the transmission seems to get confused and won't downshift out of overdrive. I have to "punch it" a little to get it to downshift. It acts like it is trying to shift, and you get this "surging" or "pulsating" feeling and you can actually see the tachometer pulsing up and down a little.

Once you give it a little kick on the throttle, it goes ahead and downshifts.

Otherwise, everything is normal. I don't think it's one of those "your transmission is dying" things. I'm guessing it's some kind of solenoid thing.

I know a really good transmission guy, but I thought I'd post here before I call him. Heck, maybe it's something I could do myself. (Probably not, though, if it's a transmission thing.)

[jason235744]

hey guys did you find the problem , i have the same thing going on, i have already replaced the pcs and the tccs,