Vehicle Shudder problems of the 2008 Honda Odyssey

Car emits a grinding sound when throttle is in a cruise or slight accel 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) accel 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.

The contact owns a 2008 Honda Odyssey. While driving 65 mph, the vehicle suddenly stalled. The contact could not restart it and had it towed to the dealer. Three weeks later, the mechanic stated that the engine needed to be replaced. Once it was replaced, the vehicle began to shake while driving at any speed. She took the vehicle back to the dealer and they stated that it was working properly. While driving home, the vehicle stalled again and all of the instrument panel lights were illuminated. The vehicle was towed to the dealer and, after a few days, they claimed that the vehicle was fine. The dealer further stated that the vehicle would shake for a few days before returning to normal; however, the failure continued. The contact took the vehicle back to the dealer and they stated that there was transmission failure. When she retrieved the vehicle from the dealer, she was informed that the transmission was replaced. After all the repairs, the failure still persists. The failure mileage was 32,450 and current mileage was 35,000.

The contact owns a 2008 Honda Odyssey. The vehicle would vibrate while driving approximately 40 mph. Approximately 1 year later the contact received an unknown recall notice advising him to bring the vehicle to an authorized dealer for a transmission software upgrade. The software upgrade was supposed to remedy the vibrations. The vehicle was taken to an authorized dealer where the software was upgraded. A few weeks later the failure began to recur. The failure mileage was 1,000 and the current mileage was 240,100.