I need help identifying a component which is connected to the coolant temperature vacuum switch. For starters, I have a '79 Fairmont with a 200 ci six and a C-4 transmission. The temperature vacuum switch (located on the thermostat housing) has two plastic tubes connected to it. One of those tubes is green and goes straight to the EGR valve actuator. The other tube is white and connects to the mystery component. On the other side of the mystery component is an orange plastic hose that connects to the carburetor. The mystery component is made of metal (it looks quite a bit like a vacuum motor) and has a sticker on it with the number D6AE-9F424-AIA. Can anybody tell me what this thing is?