alright just got back from a 8 hour drive and when i coming home i notice a rattling noise by the pulleys .almost sounds like a exhaust leak but i think its something else.it happens when parked and i give it gas and moving giving it gas .but it has to be a high rpm any ideas

 

also the bigger hose from the radiator that goes to a bottom pulley i can feel it vibrating or rattling in it

 

Lets start by you telling us what car you have, engine, ect....

 

1997 civic hx d16y7 swap,stock.

 

start of by inspecting everything of the suspected area,making sure all pulleys are tight, belts, axles. check anything you can that spins for play. its happening in my car and seems pretty common is the input shaft bearings in the transmission going bad. hopefully thats not your case.

 

the radiator hoses go from the radiator to the head and thermostat. are you thinking a/c condensor? is there a/c in your car? perhaps the a/c clutch bearings are worn. check the a/c pulley for play. i know mine came with a/c.

 

X2, as well as what ej7attack mentioned. Try disconnecting that A/C belt (assuming you have A/C). If the car is manual, does the noise go away when the clutch is depressed?