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Yup, it has one!
Mounted on top and inside the fuel tank.
Mounted in the top of the fuel tank.
It's attached to the fuel pump sending unit, inside the fuel tank.
You must remove the fuel tank in order to access the fuel pump.
1999 cadillac
The fuel level sensor is on the fuel pump, in the fuel tank.
Inside the fuel tank combined with the fuel gauge sending unit
Check under the vehicle either in front of fuel tank or along fram rail--follow fuel lines
If the fuel gauge isn't working on a 1999 Chevrolet Blazer it could possibly be because the float is stuck in the fuel tank. I had this problem when I got my 99 blazer, the float and sensor for the fuel gauge is on the fuel pump which is in the fuel tank to keep it temperature regulated. I had to replace my fuel pump, which ended up going bad on me, and after it was replaced the gauge works just fine.
The PCM, engine computer, controls the fuel system.
you drop the fuel tank and replace the sending unit