2007 Pontiac G6 Q&A

2007 Pontiac G6 Question: car is shifting real hard

had cat. converter changed now shifting hard could it be sensor or what -
Answer 1
DO YOU HAVE ANY TRANS CODES. MOST LIKELY CATT WILL NOT CAUSE THIS ISSUE UNLESS THEY LEFT SOMETHING UNPLUGGED. RETURN AND HAVE THEM INSP FOR YOU -