The Honda Odyssey has a well known manufacturing defect with it transmission, including a class action lawsuit that was withdrawn by the plaintiff for an unknown reason- (likely settled by Honda outside of the Class is my guess), related to the Torque Converter that American Honda Motor Co is unwilling to acknowledge and repair. https://www.google.com/?gws_rd=ssl#q=odyssey+torque+converter+judder

On May 9, 2016 Scott Clark Honda at 13000 E Independence Blvd, Matthews, NC 28105,Phone:(855) 507-6727, diagnosed this problem on my 2008 Odyssey and quoted $1727 to replace the torque converter. I contacted Honda Customer relations at 310-783-2000 and was told that they would not cover the repair of the Torque Converter as there is no recall and they vehicle being out of the warranty period.

Given the consistent problem being reported by others I feel this is a manufacturing defect as opposed to normal “wear and tear”. I am hoping the State of North Carolina would consider investigating this matter including consulting its files for similar complaints by North Carolinians and bring action against Honda or influence them to add this problem to their recall list for the Honda Odyssey.

Car emits a grinding sound when throttle is in a cruise or slight acceleration position. Engine gets "stuck" at 1500 rpm's where it emits grinding sound the loudest. Can also feel it in the gas pedal. Normal sequence is this: 1) Accelerate to ~40mph 2) Once at steady state and in 4th gear, engine RPMs will fall to 1500. 3) RPM will get "caught" at 1500, makes grinding sound 4) RPMs might breakthrough 1500, pop up to 1800, and grinding noise will diminish. 5) RPMs will then drop below 1500, then rise and get stuck at 1500 again along with infuriating noise and pedal vibration.

Cycle is usually 5-10 seconds. Going slightly uphill makes it cycle more frequently. Going downhill doesn't make noise since trans is disengaged. It's also hard to tell if lower gears do the same thing because engine noise and vibration drown out grinding sound/feel.

Other thoughts: - Kind of sounds like a strong cross-wind (30+ mph) going across the windshield. - It also sounds similar to how a bad idler bearing on an AC compressor sounds. That kind of metallic grinding sound. - It's not the engine mounts (they've been replaced) - It's subtle and some people might not detect the sound.