gmcyukondriver
Built, not bought.
Right now we're trying to narrow down an idle issue while the truck is in drive. We've gone through almost everything and we're unsuccessful as of now. So hopefully that gets straightened out soon so it doesn't have to be put into neutral at red lights.
What is it doing, specifically? My main guesses would be the IAC valve, TPS sensor, or the throttle body gasket. Those will tend to mess with it when you're stopped, but not when driving.