That is one of the symptoms I have been experiencing with my car for the past few months. And being that I've only owned the car for less then 9 months, I filed a lemon law claim and put Chrysler on final notice. They have contacted me and are sending down a DC tech next month to see if they can find my problem and fix it once and for all.
I had major hesitation to the point of my car not even moving when the pedal was pushed in and then all of a sudden WHOOSH it would shoot like a rocket. At first they replaced 3 different parts because they did not know what the Check Engine Light code was, so they did what they thought. Then a sensor was found to be faulty when the problem got worse... and then when my car would no longer move, they realized my computer went bad and replaced that, too. And now my problem has returned but with a new twist - hard shifting in low gears.
I can only share with everyone what I find out when the tech works on my car, which is 7/18.
My original post if you'd like to check it out:
https://www.crossfireforum.org/forum...ad.php?t=10744