So I’ve been having this rattle or a TAPTAPTAP SOUND on the passenger side of the engine bay. It only appears when the car is warmed up. Most audible at low rpms. In the video I’m holding it at about 1500rpm. Regular mechanics say it might be lifters but I’ve seen that for some people the issue is vacuum pump. Please help !!!!!!
https://www.dropbox.com/s/4n9q3pr40y...le%20.mov?dl=0