Not a real house vacuum, actual pressure "vacuum"
They at Toyota have a new Rube Goldberg Gadget that hangs from the U760E transmission (no dipstick)to set ATF level, verrrrry touchy process on this tranny. The instructions are nuts. You are literally not going to believe that this amount of gear has to be used to set the level now.
Check it out at this link. >>>>>>> https://www.dropbox.com/s/oatjuqxmrpvena...0Check.pdf?dl=0
NUTS!
Heres the snip it of the part where you apply a vacuum to the system, NOT to suck out fluid but to set it's level!!??
QUOTE
Operate the manual pump slowly to add Toyota genuine WS transmission fluid to the transmission.
Observe for transmission fluid leaking from the hose at the base of the WS ATF Level Gauge.
^ If fluid flows out slowly and only drips, then the transmission fluid level is within specifications.
^ If transmission fluid flows out rapidly, allow excess fluid to drain to a slight drip.
^ If no transmission fluid flows out, continue adding fluid using the Transmission Fill System until fluid begins to drip.
Confirm fluid level is within specifications per step 4.
After confirming fluid level is correct disconnect the Transmission Fill System hose quick connect from the Transmission Fill Adapter.
Re-connect the Vacuum Regulator Manifold hose quick connect to the Transmission Fill Adapter.
Open both of the Fluid Extraction Tank valves by turning the handle in-line with the hose to stop additional fluid loss. This will allow vacuum to be applied to the transmission and the vacuum gauge should read between 2 - 5 in. Hg (10 - 20 KPa).
Remove the WS ATF Level Gauge.
Install the overflow plug with a new gasket.
Torque: 40 N*m (408 kgf*cm, 36 ft*lbf)
looked at those "enhanced" instructions analyzed them in contrast to the standard instructions and here's what I have noted...
1. They have the fluid much hotter during the level check (195F) I bet this is because folks actually have to drive their car to the dealer, (duh Toyota) which the Toyota geniuses never accounted for, thus the cars were being checked to hot by the technicians and thereby overflowing too much ATF over the little plastic fill level tube. So Toyota now simply decided to just let the fluid get HOT hot and let the process go forward. I then thought about why Toyota wouldn't just create a new, taller overflow tube so the the higher fluid temp and greater expansion would be accomodated. The answer to that...I have no clue. Perhaps it's repeatability or just profit they were going after or selling the monstrosity of a device they devised or perhaps they thought that unless the made a major change to the process that a new slightly longer little plastic tube would be overlooked by technicians as being unimportant.
2. Also new to the process for level check in those "enhanced" instructions is the application of a 3psi vacuum until the device is attached. The Earths atmosphere is about 15psi. So they must be trying to achieve something by applying 3psi of opposing vacuum. Perhaps the know it pulls some fluid up out of the pan until the new guage device cans be attached or perhaps it pulls fluid out of the upper transmission nooks and crannies and gets it somewhere they really want it sooner or in greater quantity (such as in the pan).
Really bizarre stuff with some unanswered aspects to their logic.
But we know this much...they were likely sending out cars under filled because they were serviced too quickly and worse, at too high a temp.
This new system is a monstrosity. It's almost laughable except that now YOU and I both have a car we want to service like good owners and have a huge hassle. Not only that but cars with transmissions PRONE to shudder and thus frankly could use the extra "TLC" of fluid changes. What a perfect storm of nonsense hey.
I got a laugh out of their equipment and essential tool list....to check the ATF! LOL
They at Toyota have a new Rube Goldberg Gadget that hangs from the U760E transmission (no dipstick)to set ATF level, verrrrry touchy process on this tranny. The instructions are nuts. You are literally not going to believe that this amount of gear has to be used to set the level now.
Check it out at this link. >>>>>>> https://www.dropbox.com/s/oatjuqxmrpvena...0Check.pdf?dl=0
NUTS!
Heres the snip it of the part where you apply a vacuum to the system, NOT to suck out fluid but to set it's level!!??
QUOTE
Operate the manual pump slowly to add Toyota genuine WS transmission fluid to the transmission.
Observe for transmission fluid leaking from the hose at the base of the WS ATF Level Gauge.
^ If fluid flows out slowly and only drips, then the transmission fluid level is within specifications.
^ If transmission fluid flows out rapidly, allow excess fluid to drain to a slight drip.
^ If no transmission fluid flows out, continue adding fluid using the Transmission Fill System until fluid begins to drip.
Confirm fluid level is within specifications per step 4.
After confirming fluid level is correct disconnect the Transmission Fill System hose quick connect from the Transmission Fill Adapter.
Re-connect the Vacuum Regulator Manifold hose quick connect to the Transmission Fill Adapter.
Open both of the Fluid Extraction Tank valves by turning the handle in-line with the hose to stop additional fluid loss. This will allow vacuum to be applied to the transmission and the vacuum gauge should read between 2 - 5 in. Hg (10 - 20 KPa).
Remove the WS ATF Level Gauge.
Install the overflow plug with a new gasket.
Torque: 40 N*m (408 kgf*cm, 36 ft*lbf)
looked at those "enhanced" instructions analyzed them in contrast to the standard instructions and here's what I have noted...
1. They have the fluid much hotter during the level check (195F) I bet this is because folks actually have to drive their car to the dealer, (duh Toyota) which the Toyota geniuses never accounted for, thus the cars were being checked to hot by the technicians and thereby overflowing too much ATF over the little plastic fill level tube. So Toyota now simply decided to just let the fluid get HOT hot and let the process go forward. I then thought about why Toyota wouldn't just create a new, taller overflow tube so the the higher fluid temp and greater expansion would be accomodated. The answer to that...I have no clue. Perhaps it's repeatability or just profit they were going after or selling the monstrosity of a device they devised or perhaps they thought that unless the made a major change to the process that a new slightly longer little plastic tube would be overlooked by technicians as being unimportant.
2. Also new to the process for level check in those "enhanced" instructions is the application of a 3psi vacuum until the device is attached. The Earths atmosphere is about 15psi. So they must be trying to achieve something by applying 3psi of opposing vacuum. Perhaps the know it pulls some fluid up out of the pan until the new guage device cans be attached or perhaps it pulls fluid out of the upper transmission nooks and crannies and gets it somewhere they really want it sooner or in greater quantity (such as in the pan).
Really bizarre stuff with some unanswered aspects to their logic.
But we know this much...they were likely sending out cars under filled because they were serviced too quickly and worse, at too high a temp.
This new system is a monstrosity. It's almost laughable except that now YOU and I both have a car we want to service like good owners and have a huge hassle. Not only that but cars with transmissions PRONE to shudder and thus frankly could use the extra "TLC" of fluid changes. What a perfect storm of nonsense hey.
I got a laugh out of their equipment and essential tool list....to check the ATF! LOL
