Why does my gas tank get air?
Why does my gas tank get air? What causes air in the fuel system? Air bubbles are caused by any air leak on the vacuum (suc- tion) side of the fuel system from the fuel tank pick-up to, and including the lift pump (see Figure 1). If there is an air leak in the fuel system, air bubbles will be present in the clear cover of the Fuel Pro. Why is the gas on the left side of the tank? There's a 'sucking jet pump' inside the fuel tank that transfers the gas from the left to the right via...