Hey guys im new and just bought my first toyota 2 weeks ago. I love this car except one thing sometimes after i start the car then put it in drive and slowly start to accelerate I hear a noise coming from somewhere under the hood its almost shifting chug noise, only lasts less than a second and it wont do it again till I am in park then put it drive and accelerate again. Anyone know what it may be? Its a 2016 corolla le with cvt with 30k miles. Thank you.