Third gen 2GR-FE rattle
2015 Highlander. Parents have neglected the car for like a year at this point, so I offered to do their oil change before it went to the dealership for other maintenance. Took this video right after changing the oil and filter, seems to be even louder than before although it’s since quieted down a little. Can anybody tell me if this sounds more like VVT gear, timing chain or a bad water pump? I know all three are known issues, but I’m not familiar enough with these engines to distinguish one bad noise from another. They told me the dealership didn’t mention anything despite having the complaint in their service notes, so I’m likely gonna end up taking this to a local shop. Narrowing down the issue ahead of time would be really helpful. Thanks all! :)