My car has started squeeking/ rattle. Sounds like the pulleys.. How would i fix that.. Just pulleys are bearings and everything. and im uessing that is what the problem is.

 

Most likely culprit is the tensioner, cheap and easy to fix.

 

Pulleys cost around 20~30 dollars.... If you have a bearing remover/installer press, bearings cost around 5~12 dollars....

As mentioned by 96capricemgr, might be the tensioner, cost around 35~40 dollars.....

Use metric wrenches/sockets... Dont remember size..... Easy to replace....