ISX CM2350 fault code 4727
10-02-2020, (Subject: ISX CM2350 fault code 4727 ) 
Post: #2
RE: ISX CM2350 fault code 4727
quickserv says...
fault 4727 = A self pumping condition has been detected in the fuel system.

https://quickserve.cummins.com/qs3/pubsy...c4727.html

Possible causes of this fault code include: High fuel drain line restriction
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a restriction in the drain lines form the injector drain line circuit... or a bad injector drain line regulator.

you posted a complaint about this as far back as February by the way.,..
http://rawze.com/forums/showthread.php?t...5#pid51025


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RE: ISX CM2350 fault code 4727 - Rawze - 10-02-2020



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