2011 Toyota Camry - Rattles when started

engine rattle just starting last about 1second then it stop

What engine? How many miles on the vehicle?

Good change the noise is coming from the VVT system and or timing chain tensioner(s)…

But is the oil level correct?
Grade of oil correct?

3 Likes

MC-10132100-9999.pdf (nhtsa.gov)

A faulty cat can make a rattle sound.