My Van seems to not want to shift from first to second in a timely manner. It lags and revs high before it changes gears. I even accelerate slowly but more often than not after it's been sitting for a few hours it acts up. Not good in fast traffic. Help please

 

Hi Jennifer. I know this is an old thread but did you have any luck fixing it? What was the issue with your 1 to 2 shift? Thanks