What's the 2016 GMC Acadia purge valve location?

The evaporator canister, otherwise known as the purge valve, on the 2016 GMC Acadia is located above the rear of the muffler. The EVAP canister houses 1-2 pounds of activated charcoal that acts like a sponge by absorbing and storing fuel vapors until the purge valve opens and allows the vacuum of the engine intake to siphon the fuel vapors from the charcoal into the engine intake manifold.On top of a rough idle, a vehicle with a failing EVAP canister purge valve will display signs of poor engine performance. The engine may feel like it's running weak and won't generate sufficient power for acceleration. Accelerating will feel like You're pressing the pedal down and moving slower.