Gauge goes from full to empty and low fuel light comes on when tank is almost empty. Doesnt let me know how much fuel is in tank till its empty?
The problem is in the fuel sender unit in the tank. It sounds like the float part of the sender unit is binding when it's at the top (when tank is full) and hangs up there till it falls back down when tank is near empty. It will likely have to come out to be checked, fixed, or replaced. Good luck.
SOURCE: 2002 Chevy Suburban: Fuel gauge reads empty, tank is half full
Youre gauge is controlled by a plunger in the fuel tank which is attached to the sensor and the fuel gauge. it sounds like when the plunger goes down half way its either getting stuck down lower then it should. Needs replacing. Any mechanic can do this install for you.
SOURCE: '01 chevy venture fuel gauge doesnt read correctly reads all over
fuel sending unit located on the fuel pump in gas tank
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SOURCE: 2000 chevy blazer fuel gauge
did you recently change the fuel pump? If so you needed to change the wire harness thats attached to the fuel pump, then if not, your floater need to be replaced inside your fuel tank.
How do I know? from experience.
SOURCE: i have a 1994 volvo
there is a sending unit in the gas tank, just a float attached to an arm moving a variable resistor. you need to pull the tank and replace it. given the age of the car and the labor required, you should also replace the fuel pump while you are in there if that year had the pump inside the tank. i would also call around to fabrication/machine shops and see if any of them can flush the tank. you would be surprised at what accumulates in there over the years.
SOURCE: 2001 chev silverado, fuel gauge read empty when
SOUND LIKE A SENDING UNIT PROBLEM! YOU MAY NEED TO REPLACE IT AT THE TANK!
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