Front end shake after using fuel cut off (inertia switch)

My friend kicked the fuel cut off switch in my 99 ford ranger and when I hit the little button and start up whenever I turn the front end shakes alot and the power steering pump whines alot and after a while the shaking stops and the power steering pump doesnt whine and everything is fine

this only happens when the fuel cut off switch is either unplugged or set off and it always goes away after a while

does anyone know why this happens?