mihai

Good evening all.2 weeks ago, I bought an insignia diesel b20dth 2015.after a few days it started a strange ticking from the engine. The tester doesn't show anything and i had a few opinions from mechanics. Most of them said is one of the injector. I thought is coming from the engine ,like crankshaft or something related, but I was told that if it would be this, then the noise will be all the time and I want to mention that the ticking is not always there. any opinions? Thank you vid_ins.mp4