Thanks everyone for your input in locating the Canister Purge Valve in my Aveo hatchback 2004, it was behind the gasket manifold, tricky place to put this thing, hard to find it with out your help. Now my question is what better way to replace it? Do I have to remove the Gasket Manifold or can I go under the car, very hard to get there, so what is more easy. Thanks again.