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I don't know that vehicle but #3 and the relation to temperature sounds like the pump is failing or the fluid is low. The whine/growl is indicative of the pump, and cold temps mean more viscous fluid which won't pump as easily. The combination means lower flow at the valve body and it won't actuate normally.
The hard shifting in #2 sounds like it may be on its last legs, or someone used the wrong fluid. Type F instead of Dex?
Have you changed the fluid? If not it could be worth a try. Check it for color and smell. If it's burnt it'll only cause more problems. Check the filter for friction material. If you already changed fluid make sure it's the right type. Avoid friction modifiers that claim to improve shifting or to bring the wrong type of fluid into spec.
Flushes are a common precursor to trans problems. They often knock all kinds of junk loose and contaminate areas that are tough to clean without disassembly.
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There are a vast number of people who are uninformed and heavily propagandized, but fundamentally decent. The propaganda that inundates them is effective when unchallenged, but much of it goes only skin deep. If they can be brought to raise questions and apply their decent instincts and basic intelligence, many people quickly escape the confines of the doctrinal system and are willing to do something to help others who are really suffering and oppressed." -Manufacturing Consent: Noam Chomsky and the Media, p. 195
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