Why is air coming out of my gas tank when I open the cap?
Why is air coming out of my gas tank when I open the cap? If your car is letting out air from the gas tank filler whenever you unscrew the gas cap, gas tank vapors are not being routed back the the engine properly. Your car's EVAP system needs to be inspected. What causes excessive pressure in the fuel tank? Nothing like I have heard on any vehicle, at any time. The fuel pump, gas cap, and fuel evaporator cylinder are all new. The gas cap, fuel pump, and gas evaporator cylinder have all been replaced and the problem still...