Hi, I am a professional certified mechanic, with an engineering background, and 35+ years experience. I will do my best to assist you. Also keep in mind I don't know if you are a pro or a novice, so feel free to add any additional info at any time.
I was having trouble with chat so I switched formats. There are conditioners and cleaners that can help if some of the valving is sticky, but don’t count on it. You probably are not even want to hear this, but here we go.......................The fluid pump in these transmissions can whine when there is a problem. The planetary hears can make noises too. The oil pump in the transmission when it acts up sounds like a power steering pump that is worn, the planetary gears sound more like a worn out rear end type of whine or howl. Your #1 problem is either the planetary gears, or the pump acting up is pretty bad news because the transmission has to come out and apart to fix this problem. When this problem starts if it doesn’t progress rapidly it can go on for years, but the end game isn’t good.
It would be a real good idea to look for a replacement transmission, or strategize on a plan to rebuild it in the not to distant future. If you have the capability of rebuilding it, or if you would have it rebuilt, it would be a good idea to not drive it until it quits it can cause foundational damage.
Go over all of this and if you have any more questions at all, I am here to help. Good luck with it, have a great day, and Thanks for using Just Answer.
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