Fuel gauge help - MustangForums.com


5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 12-05-2010, 08:15 PM   #1  
Daddiofink
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Default Fuel gauge help

Greets,
1989 5.0. When I bought it, the fuel gauge didn't work, but the light would come on when it was low so that was enough. Now I've put a new sending unit it in and the dang thing runs backwards (almost).

When full, the gauge reads empty and the light comes on. As you burn fuel it will run UP to about 1/2 mark and it runs out just a little past half mark.

Can only plug in the sending unit one way.

Tested the brand new (aftermarket) sender before installed and it was to spec.

There doesn't seem to be different models for the whole range of Fox bodies so I'm at a lost.

Please help.
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Old 12-07-2010, 04:27 PM   #2  
zebo87
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must be some other wires swapped somewhere else. thats my guess.
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Old 12-07-2010, 09:34 PM   #3  
Bubba 95SN
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Good reason to hook up and test before install.
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