Steering wheel vibration when AC is on

[Euphoria]

Further to my above post, I would like to add that when the AC compressor is on, I was easily able to locate the source of the vibration, which is behind the left side of the front bumper (drivers side).

When i place my hand on the left side of the front bumper(close to the left front wheel) i can feel the vibration very distinctly and it goes away when i turn of the compressor.

Is this a simple problem that just requires cleaning certain parts that may have dirt attached or could it be something that requires changing faulty parts??

Any info will be appreciated.

Thank you.