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Originally Posted by Ice&burban
Has anyone ran into this. I've got 90 suburban and my gas gauge bounces. When I turn off the truck, the gauge goes way past full. I don't know if it's the gauge itself or something else. Any help will be great.
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I had this when I bought my blazer and the ground wire wasn't connected. Once it was grounded properly there's no bounce. Could be a bad sending unit too. Ground should be easy. For the sending unit you'd need to drop the tank.