Hey all-
I've been a lurker for a while but finally have hit something that stumps me entirely. My wife drives a 2013 Yukon that has been great since we bought it used about 4 years ago. It now has just over 100k miles and has only needed basic maintenance (and a new accelerator pedal for the sensor).
This morning we started the vehicle and it started to have an intermittent loud screaming type noise. Not quite like a belt squeal, somewhat more intense. I have uploaded a video for your review.
https://photos.app.goo.gl/kZ5yUybk6Npzt8xi7
It can be provoked by accelerating slightly while in park.
When the sound happens, some smoke accumulates in the engine bay as well (burnt rubber smell, so maybe it is a belt??)
We recently had a P0455 code pop up, but it seems unrelated to this problem and more likely that I need to replace the gas cap.
Any advice you guys can offer would be huge in helping me knock this out today!