Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › QSB 6.7 – Intermittent starting

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  • December 13, 2022 at 2:27 pm #139844

    Kirk W
    Participant
    Country: United States

    I am having intermittent start issues on both engines. Today starboard fired right up after not starting last week. Now port side is having same issue. 

    No alarms, everything powers on. When starting the solenoid just clicks. 

    Let me know if this is a known issue 

    Thanks,

    Kirk

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  • December 13, 2022 at 6:11 pm #139857

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    Only know issues are wiring  issues (bad loose connection) as  you describe…. Usually related to a battery sizeed cable to a main NEG of POS lug/bolt. 

     

    To find = totally hands-on in the engine room checking all connections.. If both engines are doing the same at times, check for common grounds

     

     

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