weird shut off noise on my 04 6.0

[NCPowerStroke]

Well guys, I don't know if it is a problem or not. But anyways, whenever I turn my truck off a weird indescribable noise goes off for about 40seconds, and then just stops. What could it possibly be? Any ideas?

 

[Cutting-Edge Diesel]

probably the injector buzz strategy.

 

[NCPowerStroke]

probably the injector buzz strategy.

Explain? Like is it anything serious, or anything to worry about?

 

[Cutting-Edge Diesel]

nothing to worry about... ford added it to a early strategy

 

[NCPowerStroke]

nothing to worry about... ford added it to a early strategy

Thanks