FishHuntRepeat

Picked mine up today, they couldn’t fix the noise....they could repeat the noise but couldn’t repair. Here are the notes. They started aTAC case and I asked how to check in on any progress, they told me it was internal with GM and they would update me when there is information. Upside....they aligned my bed and it looks better.....down side they scratched my door and it has to go back to the body shop

Dropped mine off today and could recreate the noise for the service manager, he heard it so maybe I will get some traction. i was checking out some of the trucks on the lot and man a lot of the beds are misaligned. I will update when they get back to me. The loaner I am driving makes the same noise just not as loud.....I'm dreading the call that this is normal for the 6.2

I am dropping mine off next Wednesday to take another shot at the squeak. I am also missing some paint on the tailgate when you unfold the step so hopefully they can take care of that to....and the bed alignment.

Thank you for the update, i believe this is what mine is doing also. I can put it in gear and hold the brake with light throttle and get the chirp to show up. Now that it may be pin pointed I will try and see if i can track it down to the PCV. I am curious if this is the same noise that I have on start up that takes 30 seconds or so to quite down. I will try to attach a video.....you can hear a tension-er/belt type noise until near the end and then it just disappears .....does this every time i start it after sitting for a couple hours and it doesn't matter if its hot or cold. IMG_1441.mp4

Thank you for the update.....I'm waiting to see what they tell you before I make the trip to the dealer.

Just an update on mine....we are pulling the travel trailer on a trip and it seems like its getting louder when we cold start and I can hear it now on the highway between 1000-2000 rpms. 6,2 10 speed also. It sounds like we have the identical problem. Once its warmed up I can hold the brake while in gear and get it to squeak. On another note we are pulling around 7000 lbs and it has exceeded my expectations...we have pulled some good grades getting into Oregon. My last truck was the LMM d-max so i was concerned about going back to the gas motor but I am impressed with the 10 speed and power. 10.8 avg MPG

I have the exact same noise, belt/pulley noise that is present after I cold start. It's there for 30 seconds and disappears.....it's driving me nuts. i took it to the dealership last week and they could not duplicate the noise, hopefully this will get figured out. My nearest dealer is an hour away so its a pain to get it over there and wait.