Fuel Tank Overload Understanding the Risks and Consequences

... of the two black plugs at the bottom of the gas tank. I'm guessing those plugs will burst if they sense too much pressure and vent gas correct?. However, the charcoal canister or vapor canister might get wet but that is dependent upon the design of the evap emissions system. Might see the ... "If you overfill your tank, it can cover the vapor intake hole with liquid gas, which can then be sucked into the charcoal canister. This can ... However, if you continue filling the fuel tank after the third click from the nozzle, you have likely overfilled the fuel tank of your GM ... If there was an evap issue youd have a CEL most likely anyway. The pumps shutoff failed, it has NOTHING to do with the car. youre fine. PRESENT Overfilling a gas tank can lead to several problems, from minor inconveniences to significant mechanical issues. An occasional over fill won't hurt...but don't get in the habit of overfilling as the gasoline will cause problems with evap system components. In this important video Andy Phillips explains why you SHOULD NOT overfill your fuel tank when at the gas station. Overfilling your gas tank can cause spillage, fumes, excessive spending, and damage to your car. It is better to fill up your tank more often ... If you're driving an old car, it doesn't really matter if you fill up that tank especially if it's got an old gas cap. ... happen you can ...