My car is a saab 93 vector 1.8t no matter how much fuel the gauge reads the trip computer always has low miles left till empty
Its very simple. If the gauge is showing half full then fill the tank and see how much fuel it takes. If the amount you add is approximately 50 percent of the fuel tank capacity then you know the fuel gauge is accurate . In that case the computer is giving an inaccurate reading and should be ignored. All you need is an accurate fuel gauge - it does not matter a row of beans what the computer says if the fuel gauge is reading correctly.
SOURCE: fuel gauge problem
The nature of the gauge is that it should behave with a linear taper between full and empty. If it works when full but then malfunctions as the level drops, the variable resistor in the sending unit which is housed along with the fuel pump in the gas tank is almost certainly at fault. The sending unit will have to be replaced to fix the problem. Expect this to be an expensive endeavor.
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: fuel tank gauge is not registering properly. after...
This is a very common problem with the Snate Fe. It is a scam so they can charge you $350 to replace a defective sensor. They know the sensors are defective and don't last long but it is a money maker so they have not done anything about it.
SOURCE: 2005 kia sorento Fuel Gauge says empty with 1/2 tank of gas.
Fuel sensor is not working well. Just changed mine today for the same problem.
SOURCE: fuel gage is always full even when the tank is
replace the sending unit in the fuel tank if the wires are not cut off
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