I have a 2010 Chevy Express Van that has lost power and won't go over 28mph.

My van had the same problem it got fix by changing the trotle ::

Possible issue with fuel...have shop check it.

Several months ago I received a recall notice from GM of a possible problem with my express van. I did not pay much attention to it because I was not having any problems. Then this week my van started acting up in that it was doing the same thing yours is doing. Dashboard lights up with all these warnings. I had to limp home at 15 to 20 mph being the max I could get out of her. Went home and found the recall letter that reads "may have a condition where throttle position sensor may cause the engine to run rough and cause the malfunction indicator lamp and/or engine reduced power message to illuminate. If this occurs, it could result in reduced engine power." I took it to Chevrolet house today, along with my recall notice. They just called and said they could not do anything about it becuase they could not duplicate the problem. I am going to try and get them to replace the "throttle position sensor", but thay do not want to because they cannot duplicate problem. Any ideas out there? Thanks