luvsomeacura

Hi all, I have been reading about the 3x1, 3x3, 3x? flushing of fluid. Why is there no way to drain off the old fluid from the converter? It seems like a monumentally bad design would be an understatement. To get to 97% you have to spend 300ish and drop it 9 times? This is seriously the only option? ... sorry just in slight disbelief, thanks in advance for your help and thoughts.

I hate cars

Very few manufacturers have a drain on the converter. Ford was the only one back when I did it when you could pull a plug on the converter and drain it too.

Most of the time even the transmissions with a removable pan get the equivalent to a drain and refill when you ask for a service. You have to ask for a flush to get more than just a drain and fill.

You can swap all of the TLs fluid at once using about 8-9 quarts by using the cooler line method. I've done it a couple times to my TL when I wanted to try a new fluid without having the old fluid mixing and contaminating the results.

luvsomeacura

And where is the coolant line method? I get the importance, but without complete removal u dont really know if its doing any good without skewing the results. And $100 in fluid is $100 in fluid haha

pohljm

All you need to do to get you where you need to be is a 3x3. That is 3 times, not 9 times and at the cost of 9 quarts of the ATF of your choice. Do a 1x3 spaced out like every other oil change and your good. Or disconnect the fluid line and stick the suction end into a vat of ATF and the discharge side into a waste bucket and start car.

cam_2

This looks better that a 3x3/4x3 etc but could you be a bit more specific - which fluid line(s), their location(s), etc.? Thanks

I hate cars

That's basically the cooler line method. The only problem is there's only a pressure side. The other line is dead. It would be nice if it had suction but instead you have to fill the trans at about the same rate it's coming out. I usually overfill it on accident while doing this so I'll shut the engine off and check the fluid level before reconnecting the hoses so I can just start it back up for a few seconds to lower the fluid level.

Of course you have to do a drain and refill before starting it up with the cooler line disconnected. With the cooler disconnected, the old and new fluid won't mix while the engine is running and when you get to the new fluid, the discharge fluid transitions from old brown fluid to bright red in just a second or two. It's obvious when you've gotten the old fluid out.

luvsomeacura

So how do I find the hose? And how do I perform this by step?

cam_2

+1

Superunknown

Last I checked a quart of DW-1 was $6-10. $54-90 is a far cry from $300...

EDIT: Oh I see why you got that. Nope.

Vlad_Type_S

iTrader: (3)

luvsomeacura

Thanks vlad, I found that shortly after I posted. @Superunknown, 3x3 doesn't get your old fluid out completely. You are simply going on a dilution method, not removal, so it would be exponentially higher than 9 quarts 3x3, more like 27, 3x9 before you actually got 97% of the old fluid out of the rest of the system. 3x3 I think puts you at 76% there are other threads about the math behind it. Thanks again to all who helped.

Jesstzn

Someone calculated in one of the many other trans fluid threads that 3x4 got you up into the mid to high 90 percentile change rate. In other words 12 qts.

Here is the thread... see post #4

https://acurazine.com/forums/showthr...on+change+rate