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FSSPCat

2000 Response Fuel Gauge Issue

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FSSPCat

Okay,

So, my fuel gauge worked perfectly fine last year. Dealer replaced the heater core at the end of the season. From day 1 this year, the fuel gauge hasn’t worked. Not sure if there is any relation here. 

We checked to see if the sending unit has power. It did. So, I ordered a new sending unit. We put it in and still nothing. 

The 3 other gauges in the cluster work perfectly, it’s just he fuel gauge that is stuck on empty. It will flutter a little when the we turn the boat on, but then nothing. 

Any insights as to what to check not would be greatly appreciated. 

 

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footndale

Make sure the fuel gauge has wires attached to it? Or maybe a broken wire.

You should be able to take the wire off the sending unit and attach it to ground. This should move the needle at the gauge, if it works.

Some help, maybe.

https://www.jamestowndistributors.com/userportal/document.do?docId=833

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justgary

Are the "other three gauges in the cluster" actually in one bezel, or separate bezels on the dash?  Either way, swap the cable from a working gauge with the one that is bad. 

If the problem moves or goes away, it's that particular cable from the medallion unit.  If so, you probably have extra gauge wires under the dash.  They are interchangeable. 

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FSSPCat

Thanks @justgary 

All four gauges are in one bezel. Already tried switching the wiring. It is one wiring harness for the single bezel. Going to try putting a friends in from his boat to see if it is my gauge or the wiring. 

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justgary

Good. 

I agree with what @footndale said.  Make sure the tank sender wire is secure, and double check the ground wire.  The sender needs a good ground to work right. 

Since the dealer was under your dash with the heater core, that's the most likely place for them to have caused trouble. 

Or maybe they ripped the sender wire apart when they pulled new hoses.  Run a temporary pair of wires (send and ground) direct from the sender to the medallion unit under the dash to see if it will work. 

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FSSPCat

Diagnosed the problem. The needle is just literally stuck or not working. The other gauge that we plugged in worked perfectly fine. Now, does anyone have an extra lying around so I don’t have to shell out $300 for a new one?

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Creekrat

May not match perfectly but you should be able to get one that’s the same size for a lot less. What’s the impedance range?

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FSSPCat
1 hour ago, Creekrat said:

May not match perfectly but you should be able to get one that’s the same size for a lot less. What’s the impedance range?

Not sure. Looked around the net for about 2 hours and didn’t find anything even close. 

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Bozboat
2 hours ago, FSSPCat said:

Diagnosed the problem. The needle is just literally stuck or not working. The other gauge that we plugged in worked perfectly fine. Now, does anyone have an extra lying around so I don’t have to shell out $300 for a new one?

The ground wire must be hard grounded before you turn key for the mdc to recognize it and move the needle. There is some delay built in to the mdc to keep the needle from bouncing with the fuel level.

 

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MadMan
FSSPCat
7 hours ago, MadMan said:

This will actually work. I have the spare 2” space. 

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MadMan
5 hours ago, FSSPCat said:

This will actually work. I have the spare 2” space. 

When I did mine, I bypassed the complete wire harness and ran a separate sense wire.

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justgary

Since your gauge jiggles during its power on reset, it may still work.  I would try the temporary wires from the sender to the medallion unit to make sure before I put another gauge in the dash. 

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