Which should be done First? Changing the transmission filter, or flushing? Why?
I plan on doing both dropping the pan for the filter, and flushing through cooler lines. Doing myself, ATF+4.
I've searched Allpar & other places. Plenty of articles on flushing or not, or picking one of 2 service options. Most articles don't address doing both. The articles that do state one or the other first, but no real reason why... I'd like to know the most effective way to get a new filter and all new fluid, without wasting time or money. Curious which order leaves you with the cleanest filter & wastes the least amount of fluid in the process..