Merc 496 fuel pump issue

Discussion in 'General Maintenance/Repair Questions' started by Ryanm51981, Jul 14, 2020.

  1. Ryanm51981

    Ryanm51981 Member

    Apr 10, 2012
    Peconic Bay NY
    2006 Sea Ray 290 ---- SOLD
    2006 380 Sundancer - current
    8.1 Mercs v drives
    Hey guys ,
    I took my boat out for a ride today when suddenly the port engine died and couldn’t be restarted . I cracked open my cool fuel module to check the filter and noticed it was pretty much empty . That lead me to believe my fuel pump wasn’t working . I ran to my local marine supply store and he only had the high pressure fuel pump in stock ( a Hail Mary attempt we were supposed to go on a trip tomorrow ) so threw it on but no dice . I noticed when I cycle the engine on I don’t have the high pitched wine anymore like my starboard motor does . I only hear a low hum of one of the fuel pumps . My mechanic is likely two weeks out . Its def fuel related , not the IAC sensor .

    Bad relay somewhere ? Bad fuse ?
    anything else I can try ?
    Merc 496 8.1 2006

    please help !
    Last edited: Jul 14, 2020

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