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  1. #1
    Join Date
    Jun 2011
    Location
    Virginia
    Boat
    Sea Ray
    Details
    2004 Sea Ray 240 Sundancer
    Engine(s)
    5.0 MPI Bravo III
    Posts
    10

    240 sundancer gas gauge went to Empty

    I gassed up my 2004 Sundancer 240 the other day and the gas gauge stayed at 1/4 tank and then later dropped to empty. From what little research I have done so for, it appears that I may have a bad gas level sending unit. I looked in the engine compartment and it appears that the fresh water tank will need to come out to gain access to the top of the gas tank to replace the sending unit. Any helpful advise will be greatly appreciated. Should try to identify the sending unit part number , order one, and have it on-hand prior to starting the repair so I will not have to wait for the part to finish the job? Am I mistaken and the gas tank will need to be removed as well? Thank you.

  2. #2
    Join Date
    Jul 2007
    Location
    Perry Hall, MD
    Boat
    Sea Ray
    Details
    2005 Sundancer 260
    Engine(s)
    496 Magnum HO
    Posts
    2,290

    Re: 240 sundancer gas gauge went to Empty

    Isn't that the idea? Mine starts around 3/4 and ends up at about 1/4 every weekend. How else can we expect to leave a proper carbon footprint?

    All kidding aside, I call mine a "gas guesser" because it is so rarely correct. Have you tried using the Smartcraft calibration routine to set it?

    Press in the MODE and TROLL+ buttons and hold for approximately 10 seconds for calibration 2. Use the MODE button to go through each screen.

    You should get to a screen asking for tank capacity. Use the UP, DOWN, and SAVE buttons to set it.
    Next, you will see a CALIBRATION FUEL TANK screen. Press the EDIT button.
    The next screen should say EMPTY TANK THEN PRESS PLUS BUTTON. Hit DFLT and a default value will be entered based on the capacity of the tank.
    The next screen should say FILL TO 1/4 THEN PRESS PLUS BUTTON. Hit DFLT and a default value will be entered based on the capacity of the tank.
    The next screen should say FILL TO 1/2 THEN PRESS PLUS BUTTON. Hit DFLT and a default value will be entered based on the capacity of the tank.
    The next screen should say FILL TO 3/4 THEN PRESS PLUS BUTTON. Hit DFLT and a default value will be entered based on the capacity of the tank.
    The next screen should say FILL TO FULL THEN PRESS PLUS BUTTON. Hit DFLT and a default value will be entered based on the capacity of the tank.

    I entered the capacity on mine, and then used the DFLT value for each level since I have a rectangular shaped tank. You really only need to do each level if you have an irregular shaped tank.

    Good luck!
    "Outside the Lines"
    Millers Island, MD
    MMSI: 338079052

    Warning: Trigger

  3. #3
    Join Date
    Jun 2011
    Location
    Virginia
    Boat
    Sea Ray
    Details
    2004 Sea Ray 240 Sundancer
    Engine(s)
    5.0 MPI Bravo III
    Posts
    10

    Re: 240 sundancer gas gauge went to Empty

    I didn't know the Smartcraft was even an option to resolve this! Cant wait to try this, thank you.

  4. #4
    Join Date
    Jun 2009
    Location
    Lake Norman, NC
    Boat
    SeaRay
    Details
    1999 185 Bowrider,
    Engine(s)
    Mercruiser 4.3, Alpha I
    Posts
    1,061

    Re: 240 sundancer gas gauge went to Empty

    Worth checking the connections if before you put in a new sender. I know with mine, water tends to sit on top of the tank around that area from people getting in the boat wet. My gauge started acting up and it turned out cleaning up the corroded connections fixed it. Either way it's a cheap fix, but might save you the aggravation of removing the sender.
    ______________________________
    1999 SeaRay 185 Bowrider - Current
    2000 SeaRay 290 SunDancer - Previous
    1979 Correct Craft Ski-Tique - Previous
    1948 Chris Craft Custom Runabout - Oh man to have that one back!


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