I think you may have a problem with your shock absorbers in your rear tire, mate. either that or you have somethinf caught on your wheel, or there a pebbles in your hubdcap.
maybe the flap obove the left weel has com loose something youv left in te boot and forgotten about
The guy in the trunk.
Noise coming from engine in Oldsmobile Cutlass could be as a result of an oil leak in the rear of your engine. This makes the gears to wear off leading to severe knocking noise.
Could be a bad strut or shock No I have disconnected both rear shocks and knocking noise is still there whilst driving. Seems to be coming from rear. When stationary I can bounce rear of car up and down and hear noise with handbrake on but not with handbrake off. Any ideas?
Replace universal joint on rear of driveshaft
If the noise is coming from the rear then the bushing is broken.
back struts are bad or exhaust is loose
have you checked your car for aliens?
You probably need your bearings repacked
Can be a number of things, the first thing to check would be the Subframe Bushes
The knocking that you are describing reminds me of a stuck universal joint. A bent axle usually wears tires out very fast more than making noise.
I found my noise wasn't something loose. It was the rear strut was bad. Was more of a load squeak that sounded like something knocking.