Wiring or sender unit in the tank.
A bad sending unit in the gas tank.
Your gauge could be bad but sometimes the floats in the gas tank get holes in them and fill with gas. this causes the float to stay at the bottom and your gauge to read empty. U might also check the wiring from the sender at the fuel tank to the gas gauge itself.
it is likely your fuel gauge is not working properly
This is a common malfunction that happens when the vehicle gas tank runs out of fuel.
Your 1992 Jeep Wrangler faulty gas level sensor will cause the gas gauge to not function properly. The gas level sending unit may have a bad ground wire.
Some gas gauges read overfull when you fill the gas tank because the needle goes past the full mark on the gauge. A bad sending unit,bad level sender, or stepping motor may be the cause of the gas gauge not working properly.
no power at the sending unit.
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