Cold Start Idle Intermittent Sound
 

Any ideas on what this sound could be coming from? It seems to originate more from the passenger side.

I don't think its the usual ticking that people experience, as the frequency differs, but I could be wrong.

My friend's engine does not make this sound. I took another video of his on the same day just to be sure, but have not posted it. His seems to idle from cold start with the usual noises.


Thank you.

The ticking is from the injectors, that is normal. The other noise might be from the belt or pulleys.