Trailingwire: thanks for the great tutorial. So can you figure out a way to get the 4l60E not to overrrun in Drive when it downshifts? (The original thread question). Can changes be made to the hydraulic circuits? What many of us are trying to do is have manual electronic control of the gears...
Regarding "shoot from the hip"'s desire for a cheap, simple 4L60E controller.
The well-known Megasquirt EFI controller can be programmed to control the transmission instead of EFI. It's known as Megashift, and is supported by a Yahoo group. You can build it for about $150. I doubt a home-grown...
Gerhardf- regarding my post operating the shift quadrant (or shift lever) by solenoids..... I recently saw a commercially available push-pull solenoid/ratchet assembly (or perhaps a stepper motor?) attached to the transmission where the cable or shift rod usually hooks up- i.e. to the OUTSIDE of...
gerhardf- did you ever get your electronic control working without freewheeling? I'm trying to do the same (and failing!). So far simplest solution may be to have a pair of solenoids operating the shift quadrant externally. Goes against the desire to be electronic, of course, but is needed to...
