Hopefully the problem is not because of il leaking due to something not properly installed. If that is the cause, you could have been running the engine with insufficient engine oil and additional driving time could have depleted the engine oil to cause the abnormal noise.
On the other hand it could be a failed belt or a dislodged sensor. Without checking, it is not possible to understand what is wrong. If you are not sure, it is best to stop driving and get confirmation to avoid expensive repairs if it is something that requires immediate attention.
Tuesday, January 17th, 2012 AT 3:41 PM