Transmission fluid - amount to replace

[Dave]

Alphard G - 2006, 2.4, front wheel drive

 

I've just drained my transmission fluid through the sump plug (I've had a suspicion that there might not be enough in there and was curious to see what came out).

 

Just under 2 litres has come out.  From other discussions here I gather that there might be 4L remaining in the torque converter (but how would anyone know?  Perhaps this is low, too).

 

I'm proposing to add 4L but as above, this might not be enough.  Any thoughts would be appreciated.

 

Thanks

Dave

[Geralt]

On 6/17/2023 at 11:28 AM, Dave said:

I've had a suspicion that there might not be enough in there

Doesn't it have a dipstick to check the level?

[Dave]

3 hours ago, Geralt said:

Doesn't it have a dipstick to check the level?

 

It had a leak from the cooler pipes which is why I thought the level might be low.  I've found the dipstick to be hard to interpret as it has always shown the same level whether the engine is hot or cold.  This makes no sense to me but I've been unable to get to the bottom of it.

 

The whole thing is very frustrating.  All I want to do is to put the right amount of fluid in and naturally I'm worried about overfilling due to what I've read in other conversations here.

 

[Geralt]

I'm amazed the volume change with temperature is noticeable.

 

What is your transmission code? Mine starts with a U. Maybe Google that for maintenance info.

Edited June 18, 2023 by Geralt

[PaulE]

This is off the Toyota Club Net- hope it helps. 

 

Toyota-Club.Net - Fluids & capacities - Alphard 10 (2002-2008)

 

 

Quote

 

 

[Dave]

I've been meaning to post this update for the last year having finally got to the bottom of what the dipstick was telling me:

 

This is how to interpret/take the transmission dipstick readings (2 dipstick marks, 3 scenarios):

 

1.  Engine running but not warmed up:  dipstick should read cold

 

2. Engine running and warm:  dipstick should read warm

 

3. Engine cold and not running: dipstick should read above the warm mark

 

Confusion arose from my initial belief that the cold mark on the dipstick meant scenario 3, above.  (Leaving aside other oddities caused by the leak and low levels).  I couldn't understand why a cold, non-running engine was giving a reading of hotter than warm.   

[Catweazle]

How much did you put in Dave?

If there's supposed to be around 8 litres and you removed 2, did it need 6?