When driving at 2200/2300 rpm and then slightly aceleratine to 2600/2700 rpm the van shakes real bad (not the steering wheel) It feels like the whole van, and seems to not have much power. Then if I increase the rpm to above 3000 everything is back to normal
Please supply the missing details, including:
Whether the vehicle is still covered by warranty
The vehicle’s maintenance history in detail. Please don’t give us an essentially meaningless statement such as, “it is well-maintained”.
Disable overdrive and test drive it.