My 400e shifts at 3500-4000 from a start. Then fwy speed past 65-70 mph when cable was at it setting.
Backed off cable almost bottom out so it would shift at fwy speeds. Still goes up to 3500-4000rpm from the start.
When I adjusted cable counter clockwise tightenend it would not go into higher gear until I passed 70 mph at 4000rpm. It is a normal progression of speed. Never adjusted past its rested position on the cam.
Thanks

I would try driving with the cable disconnected. Should shift at or below 1800 RPM under light throttle

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Are you talking about the cable from the trans?

OK, no change with the cable dissconnected. Made it worse on the fwy would not shift into od. What should I look for next?
Thanks

Having same issue on mine. Did you find a fix/

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former: 83 300D, 97 C230, 93 400E

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Not yet. Still looking.