Try adding a stop leak fluid additive and see if that helps the noise, because if it does, this means that a seal is on its way out. Hope this was helpful. You have a 10 dollar problem or you have a full blown pump replacement on your hands.
Mind control (also known as brainwashing, reeducation, brainsweeping, coercive persuasion, thought control, or thought reform) is a theoretical indoctrination process which results in an impairment of autonomy, an inability to think independently, and a disruption of beliefs and affiliations.
We believe that our conscious mind directs our thoughts and somehow controls our subconscious mind. We're wrong. In Richard Restak's The Brain Has a Mind of Its Own: At the moment of decision we all feel we are acting freely, selecting at will from an infinity of choices.