I am getting a rattling noise when cranking my car. It only happens when I first crank it. It only happens when the engine is cold. I have never heard it when the engine is hot. Its in the engine bay but cant place where the noise is coming from. Anyone else having this problem?

 

I have this noise, just started on my car.
Read in other threads that its quite common. Mine only lasts about 1 second, and only does it when cold.

 

sounds like my car rattles when i turn it off...