Thread: fuel gauge

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  1. #1
    Member
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    Apr 2014
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    SW, Ohio
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    fuel gauge

    2002 pantera3 with 2 merc round displays. a10 has tank selection switches but nothing seems to change on merc displays? cannot figure out the fuel gauges nor trust them??? any help?
    2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
    2002 basscat pantera 3 (dad bought new) sold 8-2-22
    2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
    pulled by a 2500HD Denali
    proud dad of an ARMY Captain
    MAGA
    ASE/GM Master tech before tools

  2. Member Boatseller's Avatar
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    Nov 2007
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    Lexington, NC
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    #2
    First thing I did on my 01 P3 was change the fuel senders and tank pick up tubes. My ground on the old senders was always hit and miss. Good Luck.


  3. Member
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    Nov 2020
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    Tarheel, North Carolina
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    #3
    1.Remove sending unit signal wire
    2. Ground sending signal wire to known good ground
    3. If gauge moves, sending unit is faulty or bad connection.
    4. If no movement then issue is elsewhere

  4. Member
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    #4
    Quote Originally Posted by fynns View Post
    1.Remove sending unit signal wire
    2. Ground sending signal wire to known good ground
    3. If gauge moves, sending unit is faulty or bad connection.
    4. If no movement then issue is elsewhere
    no gauge just merc smart craft digital displays and keypad with left and right option on it? will try new grounds this weekend
    2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
    2002 basscat pantera 3 (dad bought new) sold 8-2-22
    2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
    pulled by a 2500HD Denali
    proud dad of an ARMY Captain
    MAGA
    ASE/GM Master tech before tools