This video shows you how to replace and what part fails when a Chevy Cobalt with 4T-40E, 4T-45E or similar vehicles with those transmissions suddenly only goes in reverse. No transmission codes or other mechanical damage. Part # 24202349
Couple of thoughts here.. #1: Never ever ever use scissor jacks to service a car! They are not stable! #2: The 11mm plug is actually the full level, there should be very little fluid that comes out when you take it out. #3: Good catch on the broken line! This is an easy fix that will likely help a lot of people.
I had a stand further up out of view. Since I had the car leaning toward the full hole, I was able to get a decent amount out of there before dropping the pan.
