bad injector?

[chuck416ex]

my truck has a knock at idle speed, a buddy told me its an injector knocking.how do i check it out with out taking it to the shop

 

[JLDickmon]

does it run bad?

 

[BJS]

I've yet to hear an injector knock over the diesel knock of the engine. Would you be hearing the cackle that is fixed with a long lead injector?

Easy inspection for you is a mechanics stethoscope and listen for differences as you move the tip along the valve cover.

 

[BIG JOE]

does it run bad?

I've yet to hear an injector knock over the diesel knock of the engine. Would you be hearing the cackle that is fixed with a long lead injector?

Easy inspection for you is a mechanics stethoscope and listen for differences as you move the tip along the valve cover.

X3.

Joe