05 Odyssey Exl high pitch hissing sound when accelerating fm 37-55 at 2000-2300 rpm n seems coming upfront. Replaced both front bearing n hub assembly n still hearing same. Checked all mechanical, checks good w/ no play. rotated 2 yr old tires, balanced n did alignment n still hearing same. I heard same problem at the back before n replaced bearings n hub assembly n sound disappeared. That’s why I did same to the front. Transmission is really good n never have problem. Any idea, suggestion, experience is much appreciated.

Car runs n shifts really good, engine so quiet n smooth during idle n w/ no vac leak. Has new serpentine belt. No CEL n only have Ars-Seat belt indicator problem n recently replaced drvr seat belt latch n fixed problem. Transmission never have no problem. Accelerating from 40-55 when high pitch is heard at 2000 rpm. Plan to replace timing belt kits n will continue to check as recommended. Thank you.

Do you have a cold air intake type air filter? After awhile they become a little dirty and make noise.other than that maybe a vacuum leak.

I replaced all my cars filters with KnN filters n clean them annually when I do oil change, mobil1 15k, annual driving 4-6k. Odyssey 105K, runs really great just worry me this hi-pitch?

Check to see if you have a retainer clip broken on the brakes

Recently replaced both front and rear bearing hubs, bearings and pads. Not sure if new retainers breaks that soon, besides brake pads are thick and quiet. I can remove all tires and inspect if need to just to ensure retainer not damage or wrongfully placed during installation?

When you do eventually find out what it was please let us know.