2004 Impala Evap Canister Solenoid

I am looking for an evap canister solenoid for my 2004 Impala. This is the part that is located right next to the fuel fill spout. I can't seem to find the right one at any online part stores. If anyone knows where I can find one please let me know. Also, I unhooked the one that is on the car now and it fixed my problem. But I'm concerned that leaving the vent hose dangling under the car could be dangerous with the fumes and such. Any thoughts? The issue was that I had a hard time filling the car with gas because the solenoid was not opening there fore the tank was not vented.