Rattle in front driver's side of 2014 Toyota RAV 4. Sounds come from left side

What is your question?

Not constant. Concrete and gravel road sometimes is when it begins. Can be loud or not so loud. Is sporadic. Sounds like metal pliers lying atop a metal sheet hitting and rattling at times. It's not tool left behind(already checked).

What makes this problem better or worse?

Begins sometimes if I enter concrete and gravel road upon leaving tarred smooth road.

How long has your 2014 Toyota RAV4 had this problem?

Several weeks.