Hello, I bought a 2019 Colorado ZR2 Duramax on Monday 03/11/19. On 03/17 the check engine light came on. On 03/21 I took it back to the dealer. They called and said it was the #3 injector. I learned today that it is the injector tube that goes from the rail to the #3 injector. They are telling me that GM is aware of the issue (bad tube design that causes the injector to fail) and is working on a redesign of the tube. As of now they do not have an ETA of the redesigned tube. For the 6 days I got to drive the truck I absolutely love it. GM gave me a 2019 Z71 Colorado V6 to drive until then and all I can say is that I miss my ZR2 Duramax.