2003 Duramax - stalled & won't start
 

Hi Bombers. I'm new to the diesel world, picking this 03 Silverado up a couple weeks ago. It's been starting and running fine since I purchased it, until this morning. Problem: Currently wont start. Background: It started normal this morning. Quickly after starting, I put it in Neutral, letting it roll backwards out my driveway onto the street. It seemed to be idling normally as it rolled back. I stopped it, then while braking and about to place it in drive, it died. It turns over strong and all lights, gauges and radio are working normally. Any ideas? Thanks, Steve