ive Had this noise that sounds like a lifter tap so I brought it to my mechanic for them to diagnose it. They said i needed to replace my lifters. When ur lifters are making noise can’t you hear it when you’re idle? When I’m parked in neutral revving the car I can’t hear the noise at all, it’s only when I’m in gear driving and it depends how much I’m pressing on the throttle. Typically when I’m letting off throttle or when I’m maintaining speed I’ll hear the tapping which is making me think it’s something to do with the intake but when I’m gaining speed or close to full throttle I won’t hear it. Any suggestions?