In my van, when slowing from highway speeds ( when getting off an exit) the van will shake. Same thing when accelerating to highway speeds.

Also, not sure if this is related but when turning sharply at low speeds right or left there is a rumbling grinding you can hear plus feel in the steering wheel and even from the passenger seat- ideas? Van is a 2004 e350. Thanks!

 

Bad U-joints?

 

Are you running stock size tires on this van??

The noise you hear/feel on sharp turns could be the tires rubbing on the radius arms, or even on the front fenders.

 

All tires are stock- this is something we can feel when the wheel is not at full lock- feels like warped rotors but during acceleration and deceleration. Almost wondering if we have bad axles.

 

We'll take a look at those- never had them go on a vehicle before so I don't know how they feel when driving. I'll check them directly. Thanks!

 

There are too many variables to list. go to a shop and have it looked at. Most will inspect for free.