Hello Scotty,
2005 4runner 4.0 shudders only when lightly speeding up.
Only when in "D".
Doesnt do it in 4 or 3 2 1.
Doesnt shudder when car is still cold.
I changed transmission fluid and it went away only for a few months.

I heard the computer doesn't work well with this newer transmission. I'm just confused if it is something mechanical or electrical!?

What do you think? Thanks

transmission is probably starting to go out. Try removing one quart and put one quart of lucas tranny additive in and pray

Ill do that. Has almost 220k miles. So time to get rid of it. Thank you for the reply. Huge fan of yours.