68RFE Flush

[RAMPower2017]

My question is can I pump out some of the Tranny fluid using the cooler bypass block to lower the level in the pan, so I can manage the pan without making a mess. i would run in it neutral to pump out some of the fluid.
I'm going to flush it after I fill the pan with new fluid.

 

[Burla]

I use a mighty pump for this, be careful using trans oil pump for this, it runs dry convertor runs dry you lose. In theory you can do what you say, but mighty pump is cheap. Not only that you can probably use principles of siphon to lower it. Lts of ways to skin that cat.

 

[Burla]

this used to be 19 bucks, worth it man, so handy many things powers right to battery.

here even cheaper

 

[HEMIMANN]

Damn - never even thought of that. Well, at least I got a drain plug.

 

[Jeepwalker]

Yes. I've done it a bunch of times on various vehicles over the last 35 years. Gets all the fluid out. It's really a job for the guy who has his head screwed on straight.

Overfill the tranny a quart or two after replacing the filter, etc. Use a new clear vinyl hose diverted into a white 5-gal bucket. That way you can clearly see the fluid color ...as things happen real quick. Probably 15 seconds, maybe 20 and it'll be over. Don't use a dark bucket, you can't see the fluid color.

Have a helper start the vehicle (in park) while you monitor the progress. It pumps out quick. Watch the hose like a hawk. As soon as you see it turn 'clear' red, yell to the helper to shut off the vehicle. Top off the tranny. I've had it where I stopped the engine half way and added 2 quarts just for comfort. You might have your funnel installed on the fill tube ...and two quarts open, ready to go. Forget about adding as you go.... you can't add fast enough and your attention needs to be 100% on the fluid stream.

Hints:
Don't run the tranny dry
Don't walk away and answer your phone while the fluid is coming out.
Don't go over and talk to the neighbor
Don't go grab lunch...LOL
Do at your own risk.

I only say those things bc I actually know a guy who started changing his car's oil. He decided ..very hot day, he needed a cold. Drove his car to the local gas station a couple blocks away. Came home and planned to add oil. "Hey...what's that knocking noise??"

Good luck

 

[RAMPower2017]

With the old fluid still in the trans.....I wanted to drop the fluid level in the pan so I can then drop the pan without a full pan of fluid. Easier to manage. Then I would replace the two filters, fasten the pan back, and overfill the Trans with new fluid as you said and following your procedure. What do you think?