Question about 2000 GMC Yukon Denali

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Gas gauge flucuates to empty and full so we never know if we have enough gas. What to do?

The gas gauge in our 2000 Yukon Denali fluctuates to full and empty as we're driving so we never really know if we have enough gas. What to do?

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  • Anonymous May 23, 2009

    My 89 2wd blazer is doing that. Yesterday (5/22/09) i had a New sending unit put in. I filled it up and it now reads a quarter tank. Before I would Fill it up and the gauge went to empty then it would go to full and stay until i would fill it up again. Any Help.

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  • 79 Answers

It is a common problem. It is a faulty in tank sender. You can just replace the sending unit by removing tank.

Posted on May 18, 2009

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