kes

I have this exact same symptom and hoping that someone can chime in. My 02 ES300 has about 165k miles on her. I am the second owner (bought at 115k - 4.5 yrs ago) and do not drive her hard. My car (tranny?) has two symptoms actually: 1) the erratic jerky shift issue that is very well known for this vintage and apparently with no known foolproof cure 2) the symptom I'm looking for assistance with - a rattling noise that occurs at exactly 2400 RPM at a shift point. It sounds like a flex plate noise I had on a car several decades ago. In any case, the rattling noise does not occur at any other point. Not at 2400 RPM while in driveway (no tranny shifting), or at any other shift points . Only at the 2400 RPM shift point. I hope someone can help with my rattling noise symptom before I start ripping into this drivetrain. (I do much of my own repairs but stop short of engine and tranny tear downs). I'll take a look at possible non-tranny rattling points per this thread per as well. I've come to accept the erratic shift issue after all that I've read on the subject and after paying $150 for a "master" mechanic at Lexus to tell me that he never sees tranny issues on 02's and doesn't think the tranny is defective. (Needless to say, I am unimpressed!) Anyway, hope you can help with my rattling noise. Thanks.