6L80/90e's How they work

[gmh308]

We have been using Helm Manuals for years. It is the definitive source for Theory of Operation. Beware, it is Engineering level reading. Those books are not for the faint of heart nor those with ADD!

g

Great to hear. I have the opposite of ADD (whatever that is) when it comes to interesting stuff like that.

Yes, engineering/adavanced level... pre-requisite is understanding of general auto trans concepts/assembly.

Any lack of detail would be a disappointment. And as the 6L80/90 run on black art, then a little quantum physics wont hurt either. Of course I dont think that being in two gears at the same time would be a simple curiosity like duality .

Areas like having to factor in the inertia of the powertrain and whole vehicle is an interesting new element to mobility using clutch to clutch trans's.

One of my other curiosities at present is how crank angle error is determined and what total error it can deal with. No one at GM can seem to come up with a response. Maybe I will post a view of how it is determined and see what the debate uncovers.

In my search though, I did gain a very good insight into virtual fuel sensing for E85 etc fuels and how it works.

Have a good weekend all!