2009 Chevrolet Traverse Q&A

2009 Chevrolet Traverse Question: What causes sputtering

my 2009 started to sputter two weeks ago. I thought it was bad gas but soon realized it was not. It is worst between 1.5 - 2.5 RPM's. What causes this? -
Answer 1
possibly a crossfire in the ignition system. do you have a ck eng like on? -