my 2001 duramax idles up and down is a sign that fuel regulator bad and where can i get one
B bosshog99 New member Aug 11, 2010 2 0 0 Aug 12, 2010 #1 my 2001 duramax idles up and down is a sign that fuel regulator bad and where can i get one
DuraTitus New member Oct 12, 2009 32 0 0 Aug 12, 2010 #2 You need to check the actual vs. desired fuel rail pressure at idle and see if the pressure is jumping around.
You need to check the actual vs. desired fuel rail pressure at idle and see if the pressure is jumping around.
