2001 chevy truck shut down all of a sudden while driving in traffic on interstate

Could be many things but with the fast stop I might say something with the pick up that makes it fire. Crank sensor....??

FIX: Changed my "crankshaft positioning sensor" (CPS). I had two separate issues hit at the same time. First was bad fuel pump. 2002 Chevy Tahoe acted like it ran out of fuel. Changed fuel filter myself but had mechanic do fuel pump ($340.00). Then while driving next day Tahoe just shut off and would not restart. Next morning it started but just for a short time. Same thing next day. I HATE MESSING WITH THE STARTER. But guess where the CPS is located...yep right above the starter . I removed tire and tire shourd for side access. I removed the two bolts holding the starter from underneath and slightly moved starter out of way. I unpluggedthe connector for CPS. Then I removed the single bolt from the side where tire was. Pulled old CPS straight out. Put new CPS in($65.00). All is well .