Transmission will not downshift after 40 mile/hr in winter, which makes driving very noisy. Do not know the problem yet. Anyone has a comment?
Yes, that problem is prevalent in the older Toyotas. I have a 1991 Previa and in when the engine is below a certain temperature, it will NOT shift out of 1st into 2nd until the engine's temperature reaches a certain degree.
I also had a 1988 Camry that exhibited the same problem. I suspect it is a Toyota issue though.
Replace the thermostat and it should correct the shifting issue. Allow the vehicle to run 30 seconds after start.
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