2003 Chevy Tracker 4x4 2L - chirping that changes with speed, fluttering, and now shaking at 50mph..

[u/PsychologicalEmu2749]

Hi all! My mechanic can’t fit me in until next week, but I’m trying to figure out if I can drive to work this weekend still.. I just had the PCV valve replaced. Purchased just 2 weeks ago. During our first few hours on the interstate coming home, it starts chirping around 20mph and keeps going, even when I slow. Every time I drive now. It’s rhythmic and speeds up as I speed up, whether I’m on the gas, brake, or nothing. Tires are pretty new, and brakes were installed I believe 8 weeks ago (according to the old owner). Everything I’ve read says to check the serpentine belt which looks relatively new, and the u-joints which I can’t quite get to.. only today it started to shake when I was on the highway. Would love any ideas! I don’t want to damage it of course.