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Fuel sending unit - 240 Evergaldes

Old 09-15-2020, 08:27 AM
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Default Fuel sending unit - 240 Evergaldes

I have a 2007 240 Everglades, any idea as to how to access the fuel sending unit?
Gauge will not read more that 3/8 full.
Thanks

Old 09-15-2020, 10:03 AM
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It will be under the deck, under a leaning post, under a battery bank, under a live well. When you find it, it will be difficult, but you will find it. Boat builders dream up ways to make maintenance more difficult and costly.
Old 09-16-2020, 03:38 PM
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The problem might be with the sending unit -
but the odds are, its with the wiring -
either between the sending unit & the gauge,
or between the sending unit & a ground connection.

A bad connection, or bad wire
will increase resistance in the circuit -
which gives an erroneous low gauge reading.

(often corrosion grows inside the plastic insulation -
the wire looks ok, but the copper conductor is compromised)

So when you get at the sender,
before you disturb it,
check that you have good continuity on both wires.

If you connect the two wires at the sender directly to each other -
'bypass the sender' -
the gauge should read full.

If it doesn't, the sender is not the problem.
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Old 09-17-2020, 03:54 AM
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Originally Posted by Fwpratt View Post
The problem might be with the sending unit -
but the odds are, its with the wiring -
either between the sending unit & the gauge,
or between the sending unit & a ground connection.

A bad connection, or bad wire
will increase resistance in the circuit -
which gives an erroneous low gauge reading.

(often corrosion grows inside the plastic insulation -
the wire looks ok, but the copper conductor is compromised)

So when you get at the sender,
before you disturb it,
check that you have good continuity on both wires.

If you connect the two wires at the sender directly to each other -
'bypass the sender' -
the gauge should read full.

If it doesn't, the sender is not the problem.
Excellent, thank you!

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