2005 RX330 transmission fluid change
Intermediate
Joined: Feb 2018
Posts: 339
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From: Illinois
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Driver School Candidate
Joined: May 2007
Posts: 38
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From: ca
In reading most of the posts regarding transmission fluid drain and refill on RX330, it seems people are draining through the pan first, then refilling, then draining throiugh the trans cooler return line while engine is running. What is the prupose of drain and refill through the pan first? Would you not get the same result by just drain and refill through the trans cooler return line by reapeating it multiple times?
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