I have a 2005 4 runner 2WD that has about 96k on it. Recently when I have been accelerating from 1st to 2nd gear the car shakes a little as if I'm going over small bumps very quickly then after about 1000- 1200 rpm it stops. It's very quick but it is also noticeable. I've tried to replicate this from a dead stop but it seems to happen randomly although I've noticed it happens most when there is a slight incline. I'm due for the 90k service so perhaps its spark plugs or a fuel delivery issue? I hope this is not a transmission issue but I know there are far more knowledgeable people on here than me :violin: that could possibly help me diagnose this. Thanks for your help!