squealing

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! Hoping to see if I can get some help regarding my 2015 Buick LaCrosse. It has the 3.6 with AWD. So recently I’ve been getting a squealing sounds starting from low speeds in the rear. Ended up finding that noise coming from the right rear. So seeing I have warrante on the vehicle...