Brought my car in yesterday to have the dealer take a look into the cold start rattle, and the engine knock/rattle around 2k rpm. Now they said the VTC sprockets are working fine and some noise is normal. Last yr they replaced a spocket when I brought it in and complained about the noise. So what's the deal now.

I also told them to check the timing chain tensioner since I have the 2k rattle goin on sometimes and of course they couldn't hear that.

WTF should I do, I'm frustrated with all these rattles?