Well thats an interesting point. Many people say you SHOULD NOT remove the old fluid and replace it with entirely new fluid. Especially on a car that you don't know the history on the fluid changes. So this may not make much sense, but it's bad to do a complete flush on a car with 100k miles on the original filter. Hopefully someone that understands more can chime in!The write up is done very well, but it is for an incomplete job. You are leaving almost half of the dirty / used trans fluid in your car. I could never understand why people do half a job and have a false sense of security from it. How many people change 2.5 qts of motor oil and install a new filter??? My guess would be none. Then why do the same thing with your transmission?? We all know that the Taurus transmissions have problems, so why do you take shortcuts and hope it covers a possible problem?
Just my 2 cents worth.
Sheila has used the exact method I have written up and showed that it works. Drops the pan, replaces the filter and fills it back up. She has had over 3 last MORE than 300k miles on the original transmission with this procedure.
Just my two cents back atchya