Hello again to everyone
I have a 99 Ford Explorer XLY 4WD auto. I have noticed a thumping sound from the left side of the car. The noise is there almost at any speed, but at higher speeds it disappears or I just can't hear it any more. But when I put on the brake it disappears, or when I turn either left or right it disappears. The noise is most evident when goin abot 5-10 MPH.
The brakes look good and the tireslook good too. I thought it might be a flat spot on one of the tires.

Any help would be appreciated.