Question about 2003 Pontiac Sunfire

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Pontiac 2003 Sunfire Gas Guage doesn't work

I recently noticed that the gas guage in the car doesn't work proerly. When you start the car the needle in the gas guage goes from the bottom right all the way past the full tank marker and goes all the way to the bottom left. Ive checked the fuses and they seem to be ok. is the bobber in the tank bad? any help would be greatly appreciated. Thanks.

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Your needle moving from empty to full and then back to empty indicates that it is trying to set itself (most cars do this each time they are started). So, yes, there seems to be a problem with the sending unit that feeds information to your gas guage. Prior to cracking open your fuel tank, you might try tracking the wires from the back of your guage as far as you can towards the tank. Then track the wires from your tank as far as you can toward the guage. Watch for damaged wires and/or loose connections as you go.

Posted on Jan 29, 2009

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Posted on Jan 02, 2017

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