Quote:
Originally Posted by AutoBike
I'm not sure it's even possible to drain a torque convertor without removing it. Even then, it isn't easy to drain the fluid out.
I'm guessing that they do a flush, but never drain it completely.
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Any time I hear a shop say they will do a flush I cringe. A flush (or reverse flush) means they will most likely need to disconnect the cooling lines from the transmission cooler. To me this is like opening Pandora's box for possible leaks and even damaging the cooler by an inexperienced mechanic. The 3 part drain and refill method is more time consuming but much safer IMO.