Optima fuel gauge dancing

[KiaDxb]

My Kia Optima fuel gauge fluctuate and dance on steady highway drive. It has a play of 15% - 20% within 3-5 mins. I have never seen or rather notice such play before. Any other Kia Optima owner please confirm this play is under normal driving behavior?

[KiaDxb]

Instead of doubting the gauge, i think its more of a sensor issue. Get the fuel sending sensor unit checked first and see if thatr little fellow is culprit. As its mucg cheaper than gauge. Good luck mate.

[KiaDxb]

Thanks suneel. have changed the fuel gauge.

[paulnat1]

i am yet to witness glitches like this in my car.

could it be malfunctioning electronics due to extreme heat?