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Old 10-16-2011, 06:07 PM
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Default fuel gauge always reads full

I did a search and it seems that if people are having a problem with their fuel gauge, it always shows empty. Mine reads full after I engage the ignition, but goes to empty when i turn the motor off. I assume that my gauge is fine and the sender is the issue, would this assumption be correct?
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Old 10-16-2011, 07:29 PM
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I did a search and it seems that if people are having a problem with their fuel gauge, it always shows empty. Mine reads full after I engage the ignition, but goes to empty when i turn the motor off. I assume that my gauge is fine and the sender is the issue, would this assumption be correct?
The most likely cause is that the wire between the sender and the gauge is shorted to ground. This will cause a "full" indication. If you disconnect the wire at the sender, the gauge should move to "empty".
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Old 10-16-2011, 07:37 PM
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Awesome!! Now all you need is a wife that wants sex every night, and a dog that never dies. Pot of Gold!
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Old 10-16-2011, 08:09 PM
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Yes Correct. You can test your guage by grounding the guage at the sender. This will give you a full reading. When you take ground off it should go to empty. If the guage is good then the sender itself could possibly be bad unless the wires are shorting and grounding out the sender. Good Luck.
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Old 10-16-2011, 08:19 PM
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Awesome!! Now all you need is a wife that wants sex every night, and a dog that never dies. Pot of Gold!
LOL!
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Old 02-03-2012, 12:45 PM
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The most likely cause is that the wire between the sender and the gauge is shorted to ground. This will cause a "full" indication. If you disconnect the wire at the sender, the gauge should move to "empty".
correct. If i remove the pink wire from the sender, it moves slowly back down to zero. Connect it and it moves back to full. So if I am understanding you correctly.
1. the pink wire is grounded
2. sender is bad

any other possibilities?
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Old 02-03-2012, 02:03 PM
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Awesome!! Now all you need is a wife that wants sex every night, and a dog that never dies. Pot of Gold!
Been there done that, eventually you'll run out of gas (both the boat and the wife) and the dog will run off.
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Old 02-03-2012, 02:43 PM
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correct. If i remove the pink wire from the sender, it moves slowly back down to zero. Connect it and it moves back to full. So if I am understanding you correctly.
1. the pink wire is grounded
2. sender is bad

any other possibilities?
If you remove the wire from the sender and the gauge returns to "empty", the wire is not shorted to ground. If it was, the reading would not change.

That pretty much leaves the sender as the problem, assuming that it all worked fine at one time and nobody messed with anything.
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Old 02-03-2012, 03:35 PM
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Awesome!! Now all you need is a wife that wants sex every night, and a dog that never dies. Pot of Gold!
Forget sex from the same person every night.

I want my dog back.

I miss the dog more than any sex I never got.
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Old 02-03-2012, 03:43 PM
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Old 02-03-2012, 05:21 PM
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This is for anyone who is tired of the gas-tank or gas-gauge headache:

A reliable fuel gauge:

Two wires come off the sender at the gas tank.
One is pink. It goes to the dashboard gauge.
The other is black. It goes to the grounding block.

A shake down should start by cleaning the
connections at the sender. Next, confirm a tight
pink wire connection at the gauge. Finally, make sure
your ground is tight and making good contact.

If wires look bad, route new 16 ga. wires.
Pink from sender to gauge. Black from sender to ground.

Examine the sender. Unscrew the sender from the tank. The sender has a float, sometimes made of cork. It could be saturated, giving inaccurate readings. A new sender is inexpensive and easy to replace. Replace with another float type, or upgrade to the center stem variety.

With new wires, solid connections, and a new sender,
the only other fault would have to be in the dashboard gauge itself.
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