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2006 G6 GT stopped for want of gas when gas guage says not empty

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My 2006 G6 GT (coupe) stopped while running and I felt when it stopped the gas was over. When it stopped heard that sound, you know, which comes when gas was over while running. Weirdly my gas guage showed there was still quarter of the tank or so. There was no low gas warning light or any chimes. Tried cranking up the car few times but no luck. Fortunately for me, my car stopped near to gas station. I had to with the help of some guys get the car into nearby parking lot. Got some gas from the gas pump and tried to crank up the car and boom it started. Not sure why the fuel guage behaved like this? Anyone faced this kind of problem? Should I take it to a GM service or any service guy can root cause it and be able to fix?

Thanks in advance.

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Sounds like a simple sensor issue. Float might be off calibration, or the resistor issue. Since you obviously have a computer dampened gauge (So it doesn't bounce around when the fuel sloshes) it could be sending the wrong signal aswell. You might want to get the sensor system within the tank checked out first.

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yes it showed full. I bought a gallon gas in a container. My Car started with that, took it to the gas station and when I filled up for full tank it showed me 15.5 gallons filled. So that confirmed me that it was gas that caused the car to stop.

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Bring it to a local mechanic or dealership and tell them your issue, they will most likely look at the tanks sensors first. The wiper arm inside the sender is grounded through the tank itself. A lack of proper conductivity, will throw the gauge off, which would show a lower gas level than actual I believe.

There is another ground in the dash and if there is improper connectivity it will cause extra resistance which would cause the gauge to read higher than normal. Happened to my buddy's truck, the needle wouldn't drop past the half way point.

But I know nothing about the sensor system in a G6 lol

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