A clicking sound when turning in an Oldsmobile Bravada is often caused by a faulty CV joint or axle. Over time, the CV joint's protective boot may tear, allowing dirt and debris to enter and damage the joint. Replacing the affected CV joint or axle can resolve the clicking sound and prevent further damage to the drivetrain. It is recommended to consult the Bravada's repair manual or a qualified technician for proper diagnosis and repair.