how to replace steering knuckle on 2006 Mercury Mariner premier

What is your question?

getting vibration/ popping sound when turning steering wheel all the way left and right when moving. such as turning into a parking space

What makes this problem better or worse?

no problems moving straight or with acceleration / only with full turning right or left.

How long has your 2006 Mercury Mariner had this problem?

4-6 weeks