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sevn103, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 275
Experience:  dealer mechanic for over 14 yrs.
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We have a 2007 cummins isx here that doesnt want to shut

Customer Question

We have a 2007 cummins isx here that doesnt want to shut off. The ignition power to the ecm turns off but it kind of coughs and sputters then shuts off.
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  sevn103 replied 1 year ago.

Do you have access to fuel psi gauges? Usually when this occurs you have a bad fuel shutdown selonoid. Verify voltage to fsov is not still having power to it when key off but I would replace the fuel shutdown selonoid

Customer: replied 1 year ago.
We just found the problem. Its was he fuel return slitter valve. Changed that and it shuts off no problem. thanks.
Expert:  sevn103 replied 1 year ago.

Ok thanks for the response back

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