I have a '98 V70 awd and lately i've been hearing some strange noises. Whenever i start driving i hear this crazy click/clank noise that sounds like it is coming from the mid-to rear part of my car, near the wheels. Any ideas on what this may be would be greatly appreciated.

Also, under the hood there is a hose that runs from, well atleast it looks like it does, the fron fan to the left of the car into some box that has belt diagram on it.

I don't know much about cars, as you can see from my describtions but any help would be greatly appreciated.