[Tim Maddux]

I have heard these noises on cool/cold mornings since I first got my Insight. Based on this discussion and the links in it to previous discussions, I decided not to worry.

 

[Rick]

Try Mobil1 next oil change. I had the slightest faint hint of that occasionally. It was so barely noticable not many people would have noticed it, but I did and Mobil1 took care of it.

 

[fatp]

Maybe it is just your injector that are making some noise....I send mine to the dealer because of this and they adjuste the valves but still the injector are noisy....