Hey guys, So I have a 99 4runner limited with the 3.4 v6 auto and it's been flawless so far until I noticed it was doing something funny on the highway the other day.˟

When cruising at a 80km/hr or over and I let go of the gas the rpms drop like the should, but then they drop further and then pop back up again. And I can feel it jerking the truck a bit when it does this.˟

So I'm wanting to know if you guys have any thoughts as to what this could be? Is it normal? Does your 3.4 auto do this?˟

Here's a video of what it's doing˟