When you do this please be careful not to dent the fender or scratch the paint with a ring. Stand next to one of the front wheels. Place your hands over the seam between the hood and fender. Push the car down and let it recoil a few times, then let go and watch. Then do the other side, and the rear.
*If the car goes up and then down more than once it's time to replace the struts.
*If the car is making the noise when the car moving it's time to replace the strut bearing plate.
Struts and strut bearings must be replaced together and in pairs (both fronts or both rears), but it's advisable to replace all four at one time. The car will need an alignment after doing this work.
It's fastest, and easiest, to replace the strut assembly as a unit from a name brand company like Monroe, KYB, or ACDelco. Strictly speaking you don't need to replace the spring, but buying the parts individually and the extra labor to disassemble/reassemble isn't really worth the hassle.
I recommend shopping around for the parts. I purchase all my parts from Rockauto.com . They are generally less expensive (even when factoring shipping) than the national brand auto-parts chains, and way less expensive than the mechanics (which buy their parts from the national chains and tack on 50%).
Side note: There are a bunch of bearings in a car. I'm specifically talking about the bearing plate at the top of the strut. If you go in to a mechanic and say you need new struts and bearings, they might think wheel bearing, which are totally separate.
06 Vibe Base - Mono Platinum - Manual