Loud noise when I go over any type of bump or uneven road surface, the rear of my car makes a very loud rattling sound like metal hitting metal

Check your exhaust and rear suspension for something loose or broken. Problem could be the exhaust, a hanger or cracked pipe. In the suspension it could be shocks, worn bushings, track arms etc. When a problem like this happens you have to get under the car and grab and try to move things checking for loosness. In general try to see what is loose enough that a bump causes it to rattle or bang. Other than inspecting the rear area there is no short cut that can be taken to solve the problem. You don't want to just start replacing parts hoping to fix the problem, that can be expxnsive and unnecessary. Good Luck!!!

Hi,
With exhaust cold, you might have a look at the exhaust system around the rear of the vehicle to see if it is secure, or if it is loose enough to bump into something as you are describing.
I hope this helps... Good luck!

Check strut/shock if u c fluid around lower section and or when pushed down does not respond smoothly or makes metal noise replace