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Discussion Starter #1
I have an 84 elcamino with a Monte ss red interior and earlier today my fuel gauge was bouncing from half full to empty and would sit at empty for a couple seconds then go back to normal. Now it just sits at empty... Anyone have any ideas where to start troubleshooting? And where the grounds are for the gauge
 

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Check the wiring harness along the frame rail by the left rear tire. they have a habit of getting rubbed raw there.
the ground is located just above the e-brake pedal at the front corner of the dash. You have to look straight up. It will a 10mm head bolt.
With the key on try pushing on the lower right corner of the dash pod to see if it is a connection problem with the wiring plug.
 

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Discussion Starter #3
Ok...I'll definately try that. Do you know where the ground from the fuel tank sending unit is/ connected to
 

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Just follow the black wire coming from the top of the tank. It goes to a screw on the rear of the body.
 
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