Monday, January 17th, 2011 AT 10:11 PM
I just bought a 2001 Toyota Camry and today I discovered it has a tapping/humming sound when the rpm is low(around 1500-2000 rpm). The natural engine sound takes up this noise for higher rpms, so it is not audible. I just replaced the timing belt and water pump, and the mechanic told me it is from the engine. It has 100k mileage. Could you please help?


