Gmc 1996 diesel

HI GUYS, I HAVE A 1996 GMC PCK UP TRUCK C3500. IT WAS DRIVING N:lol2:ORMALLY SUDDENLY NOW WHEN I STARTED IT. IT DOESN'T STAY IDLING UNLESS YOU KEEP YOUR FOOT ON THE GAS, AS SOON AS YOU TAKE OFF YOUR FOOT IT DIES, IS ANYONE KNOWS WHAT COULD BE THE PROBLEM

Not 100% sure if disels have them but it sounds like the throttle control valve

I just thought about this while I was driving earlier; I meant throttle control sensor (TPS), not valve. My bad.

THANKS FOR YOUR ANSWER CADILAKIN'98, DO YOU OR ANYONE KNOW WHERE THE TPS OR THROTLE CONTROL CENSOR ON :smooch:GMC DIESEL 1996 :loser:C3500 PICK UP IS LOCATED.:rofl: