This has been going on for maybe a month or so..(Jumpy or Studdering when going up hills)

If I give it more gas and make it downshift it smooths out.

It doesn't feel like the tranny is slipping. I'm thinking it maybe the TPS sensor.
It also idles rough once in a while, to the point of stalling if you don't rev it up a bit.

What do the gearheads think?

When were the plugs and wires last changed? May also be time for a good throttle body and MAF cleaning.

I agree plugs and wires for sure.
May also want to add fuel injector cleaner to your next fill.

hmm...i would say...maybe your octane level is too low...i dunno why that immidiately comes to mind...

or basically plugs, wires, vacuum, coils? not sure other than that

EDIT: sorry about the octane thing...darn it, I KNOW better than that! very sorry. I did feel strongly about the plugs & wires.

sounds like when I had my misfire code p0300 i believe.

I had the exact same problem and "fixed" it by replacing 3 of the 4 motor/transmission mounts (1 broken and 2 worn). I don't know for sure if the mounts were the cause of the problem, but the symptoms are gone at least.

x2

I'm on board for possible plugs/wires and general tune up first.

1. plugs

2.wires

3.coils(if above fails and they are orig. high miles ones)

time for a GOOD tune up.....

I just cured the exact same problem this past weekend with new plugs and wires. Runs like top now. Just waiting for the next thing to break or go bad....