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Fuel Gauge Pegged On Full?

Discussion in 'Technical Stuff' started by Tooncrazy, Jul 27, 2018.

  1. Tooncrazy

    Tooncrazy Well-Known Member

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    My 2015 2275 GCW fuel gauge is pegged on Full with the ignition switch On and drops to Empty with the switch off. Everything else electrical on the boat works fine. What are the likely cause(s) for this problem?

    Here is a link to a photo of my sender and technical details:

    http://www.wemausa.com/sensors/level-FuelWater.shtml#.W1t5QdJKhaQ

    The round float rides up and down on a large diameter shaft so I think it's unlikely to be stuck. The boat has 165 hours on it. There is a unconnected black and a purple wire in the helm panel wiring harness that could be related to the problem? The Tachometer and Trim gauges work fine.

    Thanks for any assistance.
     
    Last edited: Jul 27, 2018
  2. H2GO

    H2GO Well-Known Member

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    Check for fuel sender wire shorted to ground or a stuck float in the tank. Disconnect wire at sender and if it drops, your float is probably stuck. If it’s still pegged looks for a short to ground on the sender wire somewhere.
     
  3. Tooncrazy

    Tooncrazy Well-Known Member

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    Would an open purple wire cause my problem?
     
  4. cwag911

    cwag911 Moderator

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    No purple wire for fuel sender. If your boat is a 2015, why don't you call your dealer since it's warranty?
     
  5. Tooncrazy

    Tooncrazy Well-Known Member

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    ...
     
    Last edited: Jul 27, 2018
  6. Nautical

    Nautical Well-Known Member

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    Maybe it's just full and very fuel efficient? :p Sorry, couldn't resist!
     
  7. Michiman

    Michiman Well-Known Member

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    A picture might be helpful.
     
    cwag911 likes this.
  8. Tooncrazy

    Tooncrazy Well-Known Member

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    Last edited: Jul 27, 2018
  9. cwag911

    cwag911 Moderator

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    I believe he meant a picture of your sender on your boat.
     
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  10. gnc1017

    gnc1017 Well-Known Member

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    Ours recently stuck at 7/8 tank. Pulled the fuel sender and the rod was slightly bent.

    With as much clearance the float had, I wouldn't have thought the float would have stuck on such a slight bend; however, it did (first time after 3 1/2 seasons). Guessing the factory assembler thought the same or they wouldn't have put it in.

    Dealer gave me a new one, very simple swap, and all good now.
     
    Michiman likes this.
  11. Tooncrazy

    Tooncrazy Well-Known Member

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    Is this the same sender you have:
    http://www.wemausa.com/sensors/level-FuelWater.shtml#.W1uCyNJKhaQ
     
  12. Tooncrazy

    Tooncrazy Well-Known Member

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    See post #1 for photo of my sender.
     
  13. Michiman

    Michiman Well-Known Member

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    Sorry, missed that but I thought a picture of the actual one if possible, might be helpful. Sounds like you've gotten some solid tips above. Good luck!
     
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  14. gnc1017

    gnc1017 Well-Known Member

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  15. jfader

    jfader New Member

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    Interesting. I have a 2013 with about only 123 hours on it and my fuel gauge is pegged at full also and I have observed the fuel level well below full. My boat just went over the 5 year warranty level earlier this year. When joining the Bennington club, it was mentioned that my warranty would be extended from 5 to 7 years, so I am hoping that this would be covered under warranty. Anyone have any experience with using the extended warranty?
     
  16. cwag911

    cwag911 Moderator

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    The warranty is the same, bow to stern. Your dealer should take care of it.
     
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  17. gnc1017

    gnc1017 Well-Known Member

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    Likely not the reason for this OP's fuel guage stuck on full but just an FYI and follow-up for others that may experience a similar issue as ours.

    Turns out, our fuel sending unit was not bent upon original assembly but instead was bent due to lack of the tank being able to vent. It's a long a crazy story but in summary, after some troubleshooting of the motor dying on two separate occasions now, we determined it was starved of fuel due to the tank not venting properly. When this happened, the tank sides (along the center toon sides where we cannot see) had sucked in so hard that it bent the sending unit. We've evidently bent 2 of them now in this manner, until we figured out it has actually been the venting issue as the primary cause of our problem.

    Dealer is as amazed as we are this could actually happen as bad as it did but has a new gas cap on the way and hoping that solves the confirmed venting, 'tank sucking in', bent fuel sender, and engine dying problem. Weird stuff but that's boating for you. :)
     
  18. cwag911

    cwag911 Moderator

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    Glad you found the problem.
     
  19. Link

    Link Moderator

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    Thanks for the follow up GNC, good info
     
  20. Tooncrazy

    Tooncrazy Well-Known Member

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    What will disconnecting the gauge at the tank/sender prove one way or the other? Will disconnecting it move the fuel gauge needle to zero proving the sender is defective, it's stuck on Full now?
     

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