Tank Pressure Control Valve
Install a short piece of hose on valve inlet tube (fuel tank side) and blow into hose. You should feel diaphragm pop open and air should pass through valve. If valve does not open, it should be replaced.
Install a short piece of hose on valve inlet tube (fuel tank side) and blow into hose. You should feel diaphragm pop open and air should pass through valve. If valve does not open, it should be replaced.