Torque Spring???

[New2cummins]

My father-inlaw has an 01 cummins 24v in a dodge 3500, he has recently asked me about a noise from the front of the engine and since I am new to cummins I don't know where to start. Someone i asked told me about a torque spirng but i have never heard of one and most of my diesel experience is with the navistar powerstroke 7.3 and 6.0L engines so please help

 

[argve]

what kind of noise is it? can you describe it? I own a Cummins and I don't know what a torque spring is so I'm with ya buddy.

 

[dieselminded]

Is it when he shuts it off or what?