Quote:
Originally Posted by neilrmp
Shifting problems can be caused by not performing the process correctly or using the wrong or different oil, I always go with the recommended oil from the manufacture, it is way more expensive but cheaper than a new transmission.
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Absolutely agree for the oil.However,the transmission valve body is a very sensitive hydraulic device with countless small orifices.Once the system is "shaken" by the oil and filter change and some air bubbles going thru the system on the initial start-up after the new fluid is in may cause one or few microscopic objects to get into the VB and affect the way the fluid is flowing thru the servos and accumulators.The older the tranny,bigger chance for that to happen.