Gonzorc

Hey guys had a question I have a 2015 Lexus rcf has 86k miles. Every time I do an oil change I get a chain flapping noise when I accelerate but goes away after a few hundred miles any idea what it could be?

KennyFSU

I’ve never had that issue. What brand and weight oil?

AeroEdd

Could be a few things, oil level, valvetrain issue, timing issue.
Can you post a sound clip or a video?

Gonzorc

I use mobil 1 synthetic 5w30

Gonzorc

yeah I also noticed a squeaky pulley I checked them all and the one that had some play in it was the scavenger pump pulley so I’m guessing maybe it’s going out and doesn’t like fresh oil since it is thicker when it’s new and slowly the chain flapping noise goes away after the oil thins out from driving it. Probably not lubricating the engine right. I’ll post a video

Gonzorc

here’s a clip you can hear that flapping when I accelerate