vibration 20-32 mph--help

[wisc1234]

Purchased a 2008 4Runner from a Ford Dealership
-Few weeks after purchase I feel a vibration when I slowly accelerate between 20-32.
-Took it to Ford dealership due to having a partial warranty.
-Told them I read online that it may be as simple as zerk fitting needing to be lubed.
-They looked at it and told me they don't see anything wrong with the transmission or fittings. They believe it is a misfire in the engine and they can't diagnose it. I need to take it to a Toyota Dealer.

1. I don't believe the Ford dealer did anything and they didn't even grease the fittings. Does this sound like a misfire to you guys?
2. How serious is a misfire? This doesn't happen if I accelerate at a normal rate.
3. If I do take it to the Toyota Dealer should I tell them about what the Ford place said or just let them do there own analyses?
Thanks

 

[oljedi11950]

Search "rumble strip noise " expect not much from Toyota they don't admit a prob , but many here will tell probably torque converter . Try trans drain & fill 1st & lube driveshaft , mines been doing it for awhile . Been n once but no satisfaction , taking it back n a cpl wks drive with the tech .

 

[fourwd1]

I'm a little late here , but most drive-line vibes at a specific speed range are typically due to an out of balance wheel. Next likely culprit would be a bad drive shaft angle.