01 cummins injection pump PLEASE HELP

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Feb 11, 2013 | 09:46 PM

#11

Nacummins11

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Joined: Feb 2013

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Yea, it seems that way. Is their anyway to be 100% sure if it's the pump?

Feb 11, 2013 | 10:06 PM

#12

mysterync

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From: Blowing Rock,NC

Quote:

Originally Posted by Nacummins11

Yea, it seems that way. Is their anyway to be 100% sure if it's the pump?

You could supply the pump with a known good 10 psi of diesel fuel and stand alone the pump and then bleed the lines. It would rule out ecm and low pressure fuel system.

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Feb 12, 2013 | 09:00 PM

#13

Bryce

Diesel Enthusiast

Joined: Sep 2012

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From: Carl Junction, MO

Crack the lines and try a few more times. When my fuel gauge quit on me and I ran my truck out of fuel it took several lift pump cycles before I got fuel to the injectors. Also you might take the overflow valve off and see if it is stuck open.