[Shop-talk] Check engine light on a 2003 HD2500

[rustymetal at sbcglobal.net (Frank Vantacich)]

I have a 2003 Chevy Silverado HD2500 Duramax dieselwith an intermittent Check
Engine light on. The code is a P0380B and refers to the glow plug feedback
circuit. I was wondering if any one out there has run in to this problem?  I
believe the problem should be with a glow plug, harness or Controller and
would 
like to narrow it down. The truck starts right up and runs great with
the check 
Engine light on.

Thanks for the help.
 
Frank V.
rustymetal at sbcglobal.net