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This is a floating fuel gauge issue and occurs in most GM vehicles. This happens when the fuel gauge assembly in the gas tank is set as a "swing arm" configuration. "What's that" you ask? Well, open the tank of your toilet and look inside. That big, usually black ball that open and closes the water valve in the tank is pretty much the same as the fuel gauge float assembly in your gas tank. As the car moves forward or is slowed to a stop, the fuel sloshes around. (to the back of the car under acceleration and to the front when you stop.) As you accelerate, the fuel gauge in the dash seems to show you dumped some gas behind you! But as the car slows down, the gauge shows that it finally caught up to you! This is normal for most cars built by GM because they employ this type of system on almost all of their cars. Don't worry. As your ride levels off, so will the gauge.
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∙ 15y ago
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