2002 Buick Rendezvous Q&A

2002 Buick Rendezvous Question: gas guage erratic

goes from to full to empty never know if its full or empty -
Answer 1
Classic fuel sending unit failure. Need to replace the unit, it is of course in the fuel tank. http://www.autozone.com/autozone/accessories/Performance/Gauge-Sender/_/N-269r?filterByKeyWord=fuel+gauge+sending+unit&fromString=search -
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Vehicle has 49K miles, just started with fuel gauge problem. How do we fix it? Is it electrical? Fuel system?