If this is a Mopar minivan from the early to mid 1990s, check for any available updates to the TCM programming.Answer
You might need to have the tires balanced or you could need to have the car
aligned. Either of these could cause a wobble.Answer
Play in the Steering Rack, tie rod ends, Bent wheel, Bad Tire, Control arm bushings
Your Tires are separating...Have them checked or replace them
Anesthetics cause loss of sensation
Frostbite can cause a loss of sensation in the affected part of the body.
People with diabetes often have a burning sensation in their extremities especially their legs and feet.
It can cause a vibration at different RPMs. If it is wobbling around on the crankshaft it could cause damage to the crankshaft's snout. And a worst case scenario overtime a faulty balancer could break a crankshaft.
You will have to be more specific. Describe this strange sound.
administration of medications to cause loss of sensation or feeling during surgery.