Hey Guys,
I will soon flush my transmission fluid and replace with synthetic ATF (Mobil or Amsoil). I will use the method as posted here and Bay 13.
My question is this: Can you just leave the engine running and simply add new ATF fluid during the process?
I.E. - instead of waiting for the tranny to pump air and shutting down the engine to add more ATF, why not just have your ATF ready to go and add while the tranny pumps out the old?
Just seems a little more efficient to do this way.
Any thoughts or suggestions are most welcomed.
Also- as Synthetic ATF is price precious, how many quarts do you really need? Seems I have seen
posted anywhere from 11 to 18 quarts of new ATF fluid are required for a clean flush.

                      I flushed my tranny last summer using this method and it works great. I think the reason you shut the
                      engine down to add fluid is that it pumps quicker than you can fill. You also want to make sure you don't
                      overfill. I think you will need 10 or 11 quarts- that's what I used. Also, make sure you have a spare
                      retainer clip for the tranny line- they break easily.

                      --
                      Wayne '94 854GTAS 93K

                      I did mine a month ago using non-synth ATF, 13 quarts. You won't fill it fast enough via the fill tube to
                      keep up with the pumped out quantity. It pumps out about 2 quarts in 20 seconds. Try to get that down
                      the fill tube and you'll have a mess everywhere.

                      Now, my brick shifts smoother, especially the downshift from overdrive. I had 38K miles on mine when
                      I did the change.

                      FYI, it's not clear in the Bay13 directioins, but the ATF pumps out of the upper hose into the cooler, so
                      attach your drain hose to the upper hose, not the cooler fitting. I didn't break my clip either, but had a
                      spare one and a spare O-ring too just in case.

... posted by Paul Seminara  on Saturday, 24 February 2001, at 8:02 a.m. ...in response to
                      "Auto Transmission Flush - Clarification on Technique Needed" posted by Nathan.
 

                      I have found a case to be about perfect. Sometimes 1 qt left over. If your fluid isn't too bad a 12 qt case
                      should do you, but make sure you go through the gears and top up.

                      The AT pump goes pretty quick. Doesn't seem like pouring into a funnel fills fast enough. If you can
                      enlist the aid of a lovely assistant, you can give it a shot. Establish some verbal commands :)

                      Good on you for doing it yourself!!!

                      --
                      Paul/Pablo/Paulo Seminara

                      Hi Nathan
                      I became recently a V70 owner. The shifting of my transmisson is terrible. So that is exactly my next
                      project. One question I am having is what tool are you planing to use to remove the clamp on the
                      radiator?

                      Reinhard
                      V70GLT98

                      I used a pair of needle nose pliers that I inserted into the clamp and then opened up. Getting this clamp
                      on and off is the toughest part of the operation.

                      The best tool for clamp removal is a pair of snap ring pliers. These pliers have skinny round ends. There
                      are various size pliers, so to ensure you get the right fit you should buy up a hose clamp first and bring it
                      along when you are shopping for the pliers. When you buy the hose clamp, it's not a bad idea to pick up
                      an o-ring as well just in case you damage that during the procedure. The pliers come in two types,
                      internal and external. You want an external type. With external pliers, when you push the handles
                      together with your hands the ends of the handles move out rather than in.

                      Garth

... posted by Nathan  on Sunday, 25 February 2001, at 9:39 a.m. ...in response to "Re: Auto
                      Transmission Flush - Clarification on Technique Needed" posted by Garth Gullekson.
 

                      What tools /parts are required should I decide to do a complete flush from the bottom cooler hose going
                      into the transaxle?

                      Just a wrench to disconnect the fitting to the transaxle? Any "O" ring involved or other parts to have on
                      hand?

                      Thanks for the tools and info on the top hose!