Transmission Failure or Issues
#316
It was a semi hard plastic piece about 1” long 5/8” diameter. It was a tight fit into the fill hole but obviously was small enough to fall in. It was stupid of me to use that assembly- it was just what I had. Obviously some 1/2” clear tubing would have been wiser.
is there a big concern that once it gets ground up, it clogs orifices or whatever and destroys the AT?
is there a big concern that once it gets ground up, it clogs orifices or whatever and destroys the AT?
#317
I am no mechanic but I think the GX tranny could consume this with no issue.
#318
Pole Position
Size of the nipple? Not sure if it would get ground up or if it would get lodged somewhere and obstruct something. If it were me, I'd probably just let it ride and change the fluid and filter again soon (check the other thread for my experience doing the filter) and hope for the best.
Not to beat a dead horse, but the Motive Power Fill is the best option for anyone reading this and considering doing the service on their transmission.
Not to beat a dead horse, but the Motive Power Fill is the best option for anyone reading this and considering doing the service on their transmission.
#319
It was a semi hard plastic piece about 1” long 5/8” diameter. It was a tight fit into the fill hole but obviously was small enough to fall in. It was stupid of me to use that assembly- it was just what I had. Obviously some 1/2” clear tubing would have been wiser.
is there a big concern that once it gets ground up, it clogs orifices or whatever and destroys the AT?
is there a big concern that once it gets ground up, it clogs orifices or whatever and destroys the AT?
You might seek a more qualified forum with automatic transmission experts who can chime in and give you an opinion. Not to knock anyone here, but I think most of us are just casual mechanics. I'd like to think I'm pretty capable and what not, but honestly, I have no idea how an automatic transmission actually works. I've seen them torn down when I worked at a Chevy/Cadillac dealer so I know they have pretty complicated internals.
Keep us posted and you might check used transmission prices, just in case. A used tranny shouldn't be too terribly expensive or difficult for a regular mechanic to install.
Stay positive, stuff like this happens to all of us, sooner or later.
Last edited by Romanova; 02-06-21 at 03:36 PM.
#320
#321
Yes, OP said no access to find the dropped in plastic .
#322
Super Moderator
I do not think I can add anything else that has not already been suggested.
Here is some overview info on A760F transmission.
https://lexusgxor.com/_media/a760f_460_overview.pdf
https://lexusgxor.com/_media/general:a760f.pdf
Not based on anything I have seen...but I would hope anything that goes into fill area would make it quite easily to the pan and restricted by filter.
Here is some overview info on A760F transmission.
https://lexusgxor.com/_media/a760f_460_overview.pdf
https://lexusgxor.com/_media/general:a760f.pdf
Not based on anything I have seen...but I would hope anything that goes into fill area would make it quite easily to the pan and restricted by filter.
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bbqsoup (02-06-21)
#324
I circled in Red in the vicinity of the fill plug. It's hard for me to tell where this piece could end up. If it gets ground up, will it also travel thought all of the routes and crevices of the valve body? Reading up on similar situations, albeit different cars and I think Manual Transmissions, 2 people had their transmissions lock up. How would a technician access this area??
#325
Super Moderator
The FSMs I have don't cover that level of disassembly... just swapping in a replacement A760F
Not sure if anything useful here
https://atracom.blob.core.windows.ne...troduction.pdf
https://www.atra.com/
Probably would need manual like this
https://www.atsg.us/atsg/toy-lexa760e-a761e.html
or Toyota/Lexus TIS might have rebuild info that includes further disassembly
https://techinfo.toyota.com/
Not sure if anything useful here
https://atracom.blob.core.windows.ne...troduction.pdf
https://www.atra.com/
Probably would need manual like this
https://www.atsg.us/atsg/toy-lexa760e-a761e.html
or Toyota/Lexus TIS might have rebuild info that includes further disassembly
https://techinfo.toyota.com/
#326
Instructor
Join Date: Nov 2014
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@HanksLexus
It seems like you have limited options if you're not willing to replace the transmission completely.
Option1: Run it and hope the plastic doesn't clog any passage and it eventually melts in the hot fluid to the point where it eventually gets absorbed into the fluid and you can drain it out.
Option 2: attempt to put a borscope camera into the fill hole (like was being suggested to view the coolant valley leak and then use a flexible gripping tool or hook to pull it out (assuming you can see it).
At this point putting something else inside the tranny fill hole which could potentially fall off isn't hurting anything. We've already accomplished that... right?
something like this: or this
It seems like you have limited options if you're not willing to replace the transmission completely.
Option1: Run it and hope the plastic doesn't clog any passage and it eventually melts in the hot fluid to the point where it eventually gets absorbed into the fluid and you can drain it out.
Option 2: attempt to put a borscope camera into the fill hole (like was being suggested to view the coolant valley leak and then use a flexible gripping tool or hook to pull it out (assuming you can see it).
At this point putting something else inside the tranny fill hole which could potentially fall off isn't hurting anything. We've already accomplished that... right?
something like this: or this
#327
I don't think the transmission fluid is going to get hot enough to melt the plastic, even during a severe-use session.
You may go to the dealership and ask to talk to an actual Lexus master tech and see what they have to say. Give him a gift card to lunch for his troubles.
You may go to the dealership and ask to talk to an actual Lexus master tech and see what they have to say. Give him a gift card to lunch for his troubles.
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IanB2 (02-08-21)
#328
Agree. I'm buying an endoscope. My grabber tools barely fit in there but the location make it VERY difficult to sweep and grab. I plan to call some reputable transmission shops in the area which may be helpful. I like the idea of Lexus working on it, but also like the chances a transmission specialty shop would be more willing to work with me on removing the object for a reasonable cost. If I want to keep the object where it is, I should NOT crank the car, correct? If I put the car in Neutral, should I be able to Roll/Tow the vehicle with no issues or is that going to be turning the transmission?
#329
Do NOT crank the car until you know what you want to do with it. As soon as it starts, fluid should be circulating in the transmission.
There shouldn't be anything too complex about this transmission for a specialized transmission shop. Lexus is going to be stupid expensive, figuring at least $125 hour labor rate if not higher. A good, indy shop might be less. Just make sure whoever does it retains the nipple piece for you so you can verify that it was actually removed.
There shouldn't be anything too complex about this transmission for a specialized transmission shop. Lexus is going to be stupid expensive, figuring at least $125 hour labor rate if not higher. A good, indy shop might be less. Just make sure whoever does it retains the nipple piece for you so you can verify that it was actually removed.
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IanB2 (02-08-21)
#330
Pole Position
@HanksLexus
It seems like you have limited options if you're not willing to replace the transmission completely.
Option1: Run it and hope the plastic doesn't clog any passage and it eventually melts in the hot fluid to the point where it eventually gets absorbed into the fluid and you can drain it out.
It seems like you have limited options if you're not willing to replace the transmission completely.
Option1: Run it and hope the plastic doesn't clog any passage and it eventually melts in the hot fluid to the point where it eventually gets absorbed into the fluid and you can drain it out.
The following users liked this post:
IanB2 (02-08-21)