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Q: My fuel gage is being very erratic. on 2002 Buick Rendezvous

Says it's full, when I know it's not. Another time says it's empty, when I know it's not. It's usually saying one or the other. I keep track of my fuel by the mileage,trip meter. What could be the problem?
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either the fuel sender unit is bad or the connector under the back door on the drivers side. it is common for this connector to rot out over time.

Roy
I had the same problem. they had to change the whole front dash panel of gauges. about $300 or so to do it.I think it was the computor system. had dealer repair.
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