Master Thread: Suspension Sounds - What is and isn't normal?

[Rivian Mom]

Every week there are new posts about someone hearing noises from their suspension and/or front-end. I wanted to create a master thread to organize this so we can compare notes and help each other. I know some of those sounds are normal and some abnormal, so hopefully we can figure out which is which.

What noises are normal?

Air suspension - some air noise when raising and lowering vehicle

Hydraulic roll control - fluid moving through the system

Dampers - compression makes a thump sound

Friction brakes - creaking noise as the brakes compress/release

Jounce - thump, hiss sound as suspension travels/compress

Air compressor - motor and air hissing noise

HVAC - motor whines, vibrates floor, seat, steering wheel (Gen1)

What noises are NOT normal?
Half-shaft
rattle, creak sounds
fix: replace half-shaft

Subframe
thunk, clunk, creak sounds
fix: typically fixed by replacing older welded subframes with cast ones

Hubs
creak, clunk, thunk sounds
fix: typically fixed by replacing hubs

Dampers
clunk, thunk sounds
fix: typically fixed by replacing dampers

Jounce
squeak, chirp sounds
fix: replace jounce assembly as they can get over extended and wear over time

Bolts/Washers in the front end
creak, tick sounds
fix: torque to specs, replace washers

Drive unit
creak, grind, rattle sounds
fix: typical fix is to replace the drive unit

CV Boot/Joint
click, creak sounds
fix: typically fixed by replacing/repairing cv boot or replacing entire joint

There is still a whole lot to be mentioned here and please anyone can feel free to what he or she thinks should have been on the list.