autoTRANS pan drain and fill amount

What is the official drain amount for a 6 cyl for a trans service? I dont trust the 2 qts I got when a known issue is underfilling from factory.

Search gives me 20 different answers.

 

You intentionally overfill it and let it run out once its up to temp.

I always put 4 liters (qts??) back in.

Adding more is harder than draining it once it reaches temp.

 

Whatever amount it takes for it to dribble out the overflow tube at the appropriate temp range.

 

Lookin to do it cold.

 

Not gonna happen.

 

You drain it, fill it, run it to temp 35-45c, (no idea F) then remove the check plug.

The base cold method is just for initial fills.

4 jugs WS

 

Why require warming up and dribbling for EVERY service? (If what goes bak in is the same amount extracted)

 

I don't work for Toyota or Aisin, you'll have to ask them.

 

I’m going to do this drain and refill eventually as well on my 16. But I’m with you.. I was planning on measuring what I take out.. add new fluid to that measurement plus half a quart or so (some were under filled from factory) than I’ll let it run to see if it comes out at the right temps. That way if I screw something up or Something doesn’t go as planned I know at least that I have the same amount that came out.

My question is for not all these transmission manufacturers.. what the heck was wrong with a dipstick?

 

https://www.youtube.com/watch?v=ej_6BZpK3gg

 

Because it eliminates guesswork that's why.

There is no way for you to know whether it's underfilled for you to know, because the vehicle does not have a dipstick, so the best way to do it is to allow the vehicle to reach the specified temperature as per the service guidelines then remove the over fill plug and allow the fluid to drain out until it trickles.

That indicates that the transmission fluid is filled to the proper level and it also guarantees you that you did not potentially underfill or overfill it by just putting back in what you pulled out, because you don't know if Tom or Joe blow who worked on it before put in the right amount because of the fact that there is no dipstick.

If it was underfilled by the geniuses straight from the factory, what makes you think that everyone off the street is going to know how to fill it correctly?

 

I just finished this. Mine was in the 2 1-4 to 2 1/2 quart range. I did it twice in a row cycling the fluid in between with propping the cooler thermostat open.

The tranny should be at 95 F to 123 F at the A/T 1 sensor. Then fill the tranny until fluid trickles out the check plug. All while the engine is running. You must complete the fill/check before the tranny hits 113 or you will have to start over.

 

Not sure how much color matters with tranny fluid but mine looked like this after 36k



new vrs old

 

anyone in Socal want to help me with this? I'll buy you Costco Pizza AND..a hotdog.

 

Your asking about a full fluid replacement and not temp check mode, correct?

The service manual calls to add back in 3.3 qts after a drain.

If you can't add that much, cycle the shifter from P through S and idle 30 seconds.

Of course, this assumes it has the correct amount of fluid to begin with.

 

Color of the fluid usually indicates how worn out it is or how cooked the clutches are if you have heavy slippage occurring. If the slippage is too great it will actually give the fluid a burnt sort of smell to it. The valve bodies on Toyota transmissions allow for slippage to occur between shifts to give a feeling of easy shifting (comfort or granny shifting in other words). Usually most of the transmission services I have done on Toyotas despite year or model has had the fluid come out looking like it does on your right hand side of the picture.

As a general practice, keeping fluid on the clean side allows the valve body to operate correctly. If the fluid is ran on too long it can muck up the insides of the solenoids and cause erratic shifting accompanied with codes. Typically the clutches perform better in their duties and have a chance at lasting longer when the fluid is clean as well.

Towing duties degrades fluid much quicker than standard duty stuff.