Variant AWD LTZ
I have had this problem for several months and still have not found a solution.
I have a problem with the Catalytic Converter that need to be replaced (I replaced the sensors already but now just getting the tube errors)
My wife was driving our traverse and it randomly started having a hard to shifting. It was hitting high RPMs to shift each gear and most noticeable over 20mph (going into 3rd). It also will not shift into reverse. I have a code scanner and read out the PO716 and PO717. I...