What would cause my car gas guage to give false readings?

2005 BUICK LESABRE
14,500 MILES
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OBAKA
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My dashboard guage will indicate that I have a full tank of gas, but after driving for a spell the needle will move to empty and the indicator light comes on. I have ran out of gas quite a few times. I would like to know what I am dealing with and what can I do?
Aug 26, 2012 at 2:19 AM
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ASEMASTER6371
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the sender unit in the tank may have failed. you would replace the entire module to repair.

Roy
Aug 26, 2012 at 2:21 AM
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KHLOW2008
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It is better to perform test first. Such conditons can be due to a faulty gauge or body control faults. Get a scan to checkfor BCM trouble codes.
Aug 26, 2012 at 5:51 AM
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