squeak

Hi, all I recently had the upper plenum replaced at a shop and the tech told me he cleaned the throttlebody from carbon as well. After getting it back now every time the car starts up warm I hear this squeak. I also hear it when driving down the road and RPMs come down from about 2000 to 1400...

Hello Everyone! I am new to the forum so please forgive me if this topic has already been addressed, I did look but I couldn't find anything. If it has been, could you, please, direct me to the thread? I just bought a 2013 Verano and now after driving it I can hear a squeaky noise (almost like...