Where is the EGR valve on a 2001 Tahoe?

Open the hood. Look at the right side of the top of the motor and you'll see a 4 inch diameter flexible plastic hose connect to it (it runs to the air filter box). Look a few inches to the left and a few inches towards the winshield from where that hose attatches to the motor and you'll see the EGR valve. It will be metal, have a round shape about 3 inches across.