The 10R80 needs this technology

[Big Blue]

A little late to this conversation. Doesn't our 10R80 already have an axillary pump in it to maintain fluid pressure during the stop/start cycle? Just like we have an extra pump for coolant.

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[dtech]

A little late to this conversation. Doesn't our 10R80 already have an axillary pump in it to maintain fluid pressure during the stop/start cycle? Just like we have an extra pump for coolant.

yeah it does, and you bring up a good point as to whether the stellantis pump would have sufficient power to circulate fluid thru the torque converter, in the reading the description it says

• Ensures a more complete fluid change compared to traditional gravity-based methods.

but it also says would be safer as the engine isn't running, the video of Ford techs doing a flush has the engine running so fluid is circulating thru the converter and the flush machine can use low pressure to move the fluid. If the Stellantis patent applied method isn't moving fluid thru the torque converter then it's nothing to get excited about, I think the aux pump in start/start trannies like the 10r80 produces only pressure sufficient to keep clutches engaged.

 

[ctechbob]

Okay I’m just going to say this.. I’ve worked with my dad whom was a Ford transmission mechanic until he retired and died at 87. I helped and serviced uncountable C4, C6 and FMX transmissions. We would always drop the pan to see if there were indications of clutch material or metal shavings. He never would replace a filter unless it needed a rebuild. Also back then the torque converter had a drain plug that he religiously demanded it be drained so it had completely fresh fluid.. instructions from Ford was to “flush” no pan removal.. He said “ok” more for me in the future. Then later on it was was remove and replace under warranty. No longer rebuild options.

So my point here is bring back torque converter drain plugs.. screw filter changes.

That's back when filters were largely rock catchers and shift solenoids weren't nearly as tightly machined. These 10 speed filters are much finer, and it doesn't take much to jam up our valve bodies.

Draining the torque converter would only provide minimal gains, and yes, our filters will load up over time and need changing.

 

[ctechbob]

Pretty sure Stellantis builds the ZF8 under license
(IE ZF doesn't build them and ship them to them), so I wonder if they're allowed to modify the design and/or what ZF would have to say about it.

Knowing Stellantis, they'll take the ZF8 which could be argued is one of the finest transmissions of current times, and turn it into a grenading turd.

 

[jflogerzi]

Just something else that can go wrong due to "advanced technology" when a simple $5 buck drain plug will do....

QFTFT!

 

[Frenchy]

Here's a better idea. A drain plug on the Transmission Pan and an actual dip stick tube with level gauge that will allow you to fill the transmission!!

Oh wait...... Manufacturers went away from this......

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