Timing chain tensioner let go?

[Maka]

Hi guys, a noise from my engine (vct i6) has developed very recently & I'm pretty certain its the timing chain tensioner making the noise. I can hear the noise clearly at the bottom front of the motor when warmed up, a little quick intermittent rattle at around 1100rpm's like a pinging sound & weird clicking or dripping / cupping sound at idle. No noise when cold at all.

I remember the sound the motor made when the tensioner or guide let go - a relatively short sound akin to someone shaking a salt container or a bottle half filled with sand. No metal on metal bang or clunk sound, just a plasticky breaking up sound I believe.

The tensioner & chain are relatively quiet, not rattling its head off when my engine is warmed up. I've done a ton of research on this noise, know I'm seeking some tips or advice on what may have happened, best way to fix it & is there a possibility that the tensioner plunger had let go only?

I would really appreciate some info please, very many thanks in advance!

cheer's, Maka