RPM drop in 3rd gear

[FunInTheSun]

Not sure if your concern is the rough shift or the rpm drop. Since the rpm drop is just the torque converter locking (eliminating slip), I assume the concern if the rough shift.
There's so much information about the transmission "learning" that what it's actually learning gets kind of lost in the shuffle.

The transmission has a table of values related to timing of the various solenoid valves that it uses to calculate when to begin disengaging one "gear"and engaging the next "gear". Since each "gear can involve activating / deactivating more than one solenoid per "gear", coordinating the engage / disengage cycle can get complicated, and the computer (TCU) does it on the fly. But the parameters have nothing to do with driving style. They are related to how much time each individual solenoid takes to engage and disengage. The time varies because each of the clutch actuating circuits encompass a different volume of fluid, among other things.
There is a "learning" procedure that you can perform. It sometimes gets overlooked by dealerships because the requirements for doing it, especially in a city environment, can be time consuming to locate a suitable place to do it.

It involves a series of specific acceleration runs, so you kind of have to find a deserted road somewhere to do it. Look for "transmission learning procedure" or similar in the threads. This may straighten out any minor timing problems. Or maybe not. Also, since you are going to the dealer anyway, you can ask them about it.

Sponsored

 

[ctechbob]

Not sure if your concern is the rough shift or the rpm drop. Since the rpm drop is just the torque converter locking (eliminating slip), I assume the concern if the rough shift.
There's so much information about the transmission "learning" that what it's actually learning gets kind of lost in the shuffle.

The transmission has a table of values related to timing of the various solenoid valves that it uses to calculate when to begin disengaging one "gear"and engaging the next "gear". Since each "gear can involve activating / deactivating more than one solenoid per "gear", coordinating the engage / disengage cycle can get complicated, and the computer (TCU) does it on the fly. But the parameters have nothing to do with driving style. They are related to how much time each individual solenoid takes to engage and disengage. The time varies because each of the clutch actuating circuits encompass a different volume of fluid, among other things.
There is a "learning" procedure that you can perform. It sometimes gets overlooked by dealerships because the requirements for doing it, especially in a city environment, can be time consuming to locate a suitable place to do it.

It involves a series of specific acceleration runs, so you kind of have to find a deserted road somewhere to do it. Look for "transmission learning procedure" or similar in the threads. This may straighten out any minor timing problems. Or maybe not. Also, since you are going to the dealer anyway, you can ask them about it.

That is a fantastic explanation of it.

Sadly, there are techs at dealers (like the clown FordBossMe on youtube) that still believe and spread the falsehood that adaptive transmissions learn your driving style.