I'm having the same problem vibration under load over 70 and goes away around 90 mph, I have taken it to the dealer and they couldn't find any issues other than maybe a tire. I took it to the tire shop to have it checked and they did come back with an out of balance tire but it didn't fix the problem. I just replaced the passenger CV axle without really any change but now I feel it more on the driver's side so I will be picking a driver's side one up in the morning. Really hoping to get this fixed soon!
I have 2005 ody with vtech, NOT i -VTech.2007 Odyssey, 120k mi
1) Hard vibration starts at around 61mph and subsides at just over 70mph
2 ) if you take your foot off the throttle, it immediately stops.
3) if while going from 80 to a stop or lower speed, there's no vibration.
4) No vibration while braking
Please see the info I posted earlier... get the tires road force balanced or balanced on the vehicle (yes, that's a thing).Just upgrade my 2002 to 2010. Car is in excellent condition. However during the drive back on the highway, first thing I notice was vibration. After a few more time I drove it on the highway, come to the following conclusion:
The steering wheel shakes a lot during speed 70+ WHILE accelerating and not decelerate. Mostly during uphill or under load.
My 2 front tires are newer than the rear ones. My guess is that since new tires can/should only go to the back, the owner might have tried to replace tires for this vibration but has not resolve.
Going to find some time to swap front/back tires to try and see if this goes away. Other than that, I might have to have someone balance the tires and see if that will resolve the issue.
Engine movement seems normal during shifting while parked. Mounts might still be ok.
I have a 2006 ody 167k mi. has the shake at 65 to 70 mph , more shakes like my washing machine replaced all mounts including trans . Replaced stabi links then did the Rotors and then 4 brand new tires mounted and balanced . Still has the shake but not as bad from before but still shakes ! Was thinking it must be the CV axles .Had this exact problem on a 2006 with 90K miles. Fixed it by replacing both front axles. Started by doing engine mounts...(2 out of 3 shot) .....but that did not help the vibration.