I just bought my 2002 Avalon it has a few miles on it, but interior and engine is in perfect condition. Yet i noticed a couple of days ago that when im parked or when im driving or stoped at a light there's a small like running noise coming from the engine, not sure what this is, the brakes are fine and everything else but the engine makes a small running noise the whole time in driving it. I think it might be the AC but not sure, can someone help please!

Tell me what the noise you are hearing sounds like. Is it a cliking noise, and how many miles is on the vehicle.

[font=Comic Sans Ms][color=#CC66CC]If you are talking about the almost chirping noise, I noticed that I had it a few days ago while at the drive through. I bought some fan belt lube and it didn't help one bit. The brakes are great, too. I just bought the car and the carfax came back clean so I don't know what the problem could be.