Toyota Previa Steering

When I Start To Pull Off, The Van Starts To Shake. I Just Got To New Tires On The Front A Month Ago. I'm Not Sure What The Problem Could Be...

Please My Car Steering Is Too Strong To Turn Around. Please Can You Help Me With The Solution. I Have Applied Power Steering Fluid And...

So Their Is A Rubber Tube That Has Got A Crack In It And Is Leaking My Power Steering Fluid, The Fluid Is Still Full So It Must Not Be...