It is a US car used to "commute" (not fully retired, and doing contract work) from Portland OR to points all over the west including Arizona, California, etc. So, it has high miles- 160Kmiles=260K km, with a lot of the driving being in the heat. I'd like to think they changed the oil regularly, but the factory intervals are insanely lengthy, so if you start from those and stretch it, in the heat, well... Also has stupid gearing (2.86 axle + a overdrive on that) that I believe lugs the mains right out of it. All in all, it's not at that surprising. The trans sometimes for no reason kicks in and out of lock up (I think) or might be OD. Subtle shifts but there's a real issue with it hunting gears. I thought changing it at the same time would eliminate diag on that. Could be a sensor or whatever, but the old "Gordian knot" solution is sometimes the best bet.
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