01 cummins injection pump PLEASE HELP

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#11

02-11-2013, 09:46 PM

Nacummins11

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

#12

02-11-2013, 10:06 PM

mysterync

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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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#13

02-12-2013, 09:00 PM

Bryce

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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.