Woke up to a substantial puddle of coolant under the truck. Knowing I had just replaced the air intake gasket a couple of months ago, I dreaded looking under the hood in fear of finding a leak again. But fortunately or unfortunately, depending on how you view it. I found the leak coming from the weeping hole. A few hours later I had it completely removed. I found the GM OEM online, so I have to wait for it to arrive sometime this week.