I'm guessing this is a common problem, though I've never worked on one myself. I get a knocking sound from the left rear wheel area and my 2013 Hyundai Accent when I make a left turn. This started 2 days ago.

Now on a straightaway it feels as though my left tire and wheel is unstable, bouncing more than it should.

What might it be? I replace the rear shocks about 2 months ago with Monroe shocks so I doubt that's the problem.

 

Time to recheck everything back there.
A few could be s , but best to actually check .

Could be wheel brg assy
Loose wheel
Suspension
Shock mounting insulators
Loose shock mounting

Always a good idea to check the other side too.