Thanks for all the advice guys. After some research on here and your comments I'm in agreement to not take it in. Thanks again! Hoping to put another 100,000 on it!!
I have an 05 Silverado 5.3L with 120,000 miles and I've noticed that there is a ticking noise when starting it cold. It goes away after letting it sit at idle for a few minutes. I'm guessing something to do with valves/lifters? Time to take it to the dealer? Help