[glarexo]

so turned my car on today after leaving a gas station, this is the noise I’m present with, weird thing is I was 100% it is a knock, but I drove it and the noise completely went away after about 10 seconds, any idea on that? No loss of power or anything after the initial sounds, wasn’t a cold start either.
Video of the sound

 

[KW2004Accord]

Have you checked the oil level ?

 

[t-rd]

Timing belt hydraulic tensioner failure

 

[stimrob]

Timing belt hydraulic tensioner failure

This ^