Can't find a auto trans. stand pipe

I just drained my '21 TRD OR w/ 55k miles and I have an unusual problem.

I first removed the filler plug for safety and common sense, and then just for fun I thought I'd see if the tranny was filled to the top of the stand tube, so I removed the 5mm hex bolt that covers under the stand tube (the one marked "check") and over 3 quarts came out. I thought man this thing must have been totally overfilled!!! SO then I removed the drain plug and maybe one more quart came out. There was NO stand pipe in there at all. So someone just filled it with the right amount or was guessing and had no stand pipe to ensure correct height. Anyone ever hear of that?

It's the weekend and I can't find that part online anywhere yet. Anyone have any idea of where to look for one? I'll call my local dealer Monday but I'm still wondering why mine doesn't even have one... I've looked at other dealer's web sites and parts houses that has parts and they don't even show a "check" plug or stand pipe for my year. Very confusing.

Nemo

 

I am at a loss for words... Did you do ANY research before attempting a transmission service? The factory shop manual would have been best, but admittedly it is probably expensive. What about YouTube - did you look there? Did you search the threads in this forum about transmission servicing? I'm not trying to be mean - but what were you thinking?

I highly recommend some research.

And don't go asking Toyota for a standpipe. They will offend you.

Oh, and do not drive your truck until this is rectified.

 

Wow... You made a zillion bad assumptions there in your reply. That's about as friendly as I can express it...

I've been reading tons and watching youtube videos and researching materials to get, got it all and followed the exact procedures. The only thing different I did was want to see how much it was overfilled if at all according to the standpipe before I drained. Being that it had no standpipe was a mystery and still is. That's what I'm asking for on how to procure one. Watch and read yourself and you'll see what I mean.

 

Okay, I can accept what you said. Good luck with that.

 

Here you can see how it looks like on the A750F Transmission: https://youtu.be/o2eLCCT6AiA?t=196
And because no separate part is listed in the parts catalog, I think it is integrated (welded) to the oil pan.
I don't know why so much fluid came out of the check plug. The fluid level is checked after the oil has been circulated in the transmission and the engine is running. Perhaps the oil collects in the oilpan during longer periods of standstill?

 

How can you see that there is no standpipe inside? Seen through the hole, the standpipe may also be larger than the diameter of the hole.
i would feel in there with a wire bent at the end or something similar. Feel sideways and pull again, then you should be able to feel the standpipe upper end.

 

Your mistake was in opening the check plug with the engine off. It needs to be opened with the engine running and the shifter in P (chock the wheels and don't burn yourself on the cats). Checking ATF level while running is fairly common practice even on transmissions with a dipstick, except on Hondas. More fluid drains back into the pan with the engine off.

 

how is this helpful?

 

I looked. Took a picture, felt with a wire bent at end, the wire goes up through a smaller diameter threaded hole (diameter smaller than the check plug) and the threaded hole is only 1” high and then nothing, open to the entire pan area that’s why apparently 3 quarts immediately came out.

The only thing I can think of is that somebody serviced this before, lost or forgot about the standpipe, it’s just a little plastic part according to all the videos I’ve watched on the service, and then this somebody decided just to fill it with about 4 quarts of transmission fluid, or the equivalent of what they Drained out. It’s hard to believe that somebody would do that. And to tell you the truth, the guy I bought this from at 50,000 didn’t know which end of a hammer to use so he didn’t know how to work on cars, he always had it professionally done .

 

Obviously it wasn't. Sorry guys.

 

No separate plastic stand pipe. This isn't a Ford. The check plug is physically higher on the pan than the drain plug.

 

To. 3JOH22AToyota Gigolo:

I was starting the drain procedure. Read n watch all the videos, draining is done with engine off.

 

^Yep, as I said, you decided to open the check plug when it isn't called for in the procedure; that led to a wildy inaccurate reading. The check plug level is intended for when the engine is running (and the trans pan fluid temp per OBD2 is in the range specified in the service manual). The fluid level is always higher when the engine is off.

 

I would fill in the same amount (a little more) as was drained. Cycle the gears/shifter a few times and check the fill level at the right temperature and with the engine running.
Then you will quickly see whether the gearbox retains the amount of oil or whether the 3 quarts drains out again at the check plug (I don't think that will happen).

 

You should never start with the drain plug. Always the fill plug, then the check, then the drain. The last you want to do is dump all the fluid and then find out another plug is stripped and you cant fill or check the level.

 

Then you'd need to open the check plug with the engine running, otherwise you'd lose up to 3 quarts like @Nemo did, with a stripped check plug, and be in the same inconvenient situation.

 

You wouldn't have any need to open it with it running if you were planning to drain it anyway.

 

Did the drain/fill a few weeks ago, this may be helpful, OP.
Drained just shy of 3 qts. through drain plug. Refilled with 3.5 qts. Opened check plug with engine off/cold. Nearly 2 qts. drained. Re-watched Car Car Nut video, realized engine needs to be running at specific operating temp. before check plug should be pulled. Added add'l 2.5 qts. Made jumper wire to plug into OB2 port pins. Started engine, ran transmission through D/N/R several times to circulate fluid. Toggled shift lever through D/N quickly until entered "check mode" (all this in CCN video), when D illuminated, pulled check plug. Less than pint drained.
Hope this helps.
If you truly don't have a stand pipe, a new transmission pan seems the solution.

 

By your train of logic, what if you discover the check plug is cross-threaded? If the check plug can't seal, the fluid will drain out over time with the engine off.

 

By your train of logic if it was cross threaded you would just keep it running forever so the fluid doesn’t settle in the pan and leak over time…

The chance of it being cross threaded are very very small. If anything is wrong it’s going to be a plug that was overtightened and the spot where an allen goes will strip out before the threads come come loose. You always start top to bottom and make sure the plugs crack free. You’re not losing any fluid giving it a 1/8 - 1/4 turn to verify it moves and then gently snugging it back up.

There’s no reason to try to complicate the basics.