I have the exact same issue with my 2005 Toyota 4Runner LTD, V6, 146000 miles, no engine trouble at all, but it vibrates as if going over a rumble strip at thirty to thirty five mph with very light acceleration. Faster acceleration causes the shifting to appear normal. Just noticed it yesterday. Was there ever an actual finding to this original posting? I have had a substantial amount of trouble with this vehicle (purchased new) including both front bearings wearing out at 40,000 miles, alternator stopped working at 37,000 miles, air-conditioning evaporator quit at 65,000 miles, a few of the dashboard lights stopped working at 42,000 miles, catalytic converter quit at 112,000 miles, two wheel sensors needed replacing at 52,000 and 108,000 miles, CD player quit working at 44,000 miles. I treat the vehicle very well, and always have it repaired when there is an issue, but I have about had it with all the problems with this vehicle. It looks new, but obviously, mechanically, it is getting tired. I never abuse the vehicle, and I am religious about its maintenance schedule. Would the transmission really be on the fritz even though I take great care of the vehicle?
Sunday, December 26th, 2010 AT 11:26 PM