It is probably worn out and about to seize. Replace it before that happens so the system doesn't fill with debris from the pump.
possibly the timing chain tenisoner. wear on the plastic casuses a clicking sound.
Seems Compressor need to be changed.
Probably, sense Toyota's sound loud and like vacuums anyway...
Your muffler fell off.
That would be the sound of your mother-in-law.
when you try to start it then it's the starter.
if you have an 3.1 it dont sound bad, it sounds like an v8 at idle, but not as loud
that year had the jet engine option
a v6 will never ever sound like a 454 . and why would you want it to anyway
a loud speaker and for no sound it is a loud speaker with a cross on it
LOud.
Overheating. Have the cooling system checked.