What's going on everyone? I've recently had an issue with my Tahoe not starting. It seems to be connected to the ignition "Run D" position chime. When the the ignition is in the "Run D" position before starting, there is an audible chime and the truck starts. But, when there isn't a chime, the truck won't start. The engine is trying to turn over, but it won't start. Has anyone had this issue? Does anyone know what the audible chime signifies? Thanks for all of the help.