Q: while selector is in "D" position the transmission starts out in and stays in second gear

asked by on December 24, 2016

Transmission seems to be 'mechanically' stuck in second gear. In "D" it starts off in second gear & It will not up shift at all at road speed. I tried starting off in "L" and still stays in second gear. Reverse works and it doesn't seem to slip at all. I put jumper wire in diagnose slots and CEL blinks steady on-off. No codes as I can tell. ECM? or linkage issues outside or inside the transmission? Fluid is dark but no burnt smell... going to change fluid and filter next. I'm stumped. thx Bill

My car has 20000 miles.
My car has an automatic transmission.

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