Complete Drain and Fill?
I read somewhere that this procedure should work to completely drain and fill with new ATF.

1. Drain old ATF from drain bolt (about 4 quarts)
2. Fill new ATF from stick (about 4 quarts)
3. Disconnect return line to ATF pan from radiator.
4. Start engine and catch old ATF from return line (no more than 4 qts)
5. Connect return line (prior to refilling)to prevent spilage while refilling
6. Fill new ATF (about 4 quarts)
7. Disconnect return line to ATF pan from radiator.
8. Start engine and catch old ATF from return line (no more than 4 qts)
9. Connect return line (prior to refilling)to prevent spilage while refilling
10. Fill new ATF (about 4 quarts)
11. Disconnect return line to ATF pan from radiator.
12. Start engine and catch old ATF from return line (no more than 4 qts)
13. Connect return line (prior to refilling)to prevent spilage while refilling
14. Fill new ATF (about 3 quarts)
15. Check level and top as necessary

Thoretically this would remove all ATF and replace with new ATF. Downside, you waste some ATF. Upside, you don't let the grease monkey boys at Jiffy Lube touch your car.

What do you think about this method? Thanks.

 

You have more steps than you need. After you do the pan drain and refill, disconnect the return line (I connect it to a 6ft piece of tubbing with a male-to-male fitting so I can see the container with the engine running.) pump out 2 qts (you dont want to suck air), shut it off, refill the sump (you don't have to connect the return line) and repeat until clean fluid comes out. When you're done get the fulid up to operating temp and recheck the level.

 

or any shop that has a tranny flushing machine. I believe it's called T-Tech.

 

The return line is the one on the passenger side of the radiator right?