when pressing the brake pedal the left turn signal lights come on, on 2002 ford explorer
Check your last post.
There will be some wiring problem in your car for that you should visit nearest authorized car service center for better solution.
First check the socket in the taillight for a frayed wire. Does the turn signal blink as it should, or just come on and not blink.
Looking for a Used Explorer in your area?
CarGurus has 71,753 nationwide Explorer listings starting at $300.
Search Ford Explorer Questions
Ford Explorer Experts