Lowlife1

1993 sc300 auto trans won't catch 1st gear and the power button won't work. Any ideas?

ObSCessed

Going to chime in with the obvious starter solution which is , have you verified the trans fluid is at proper level?

Lowlife1

Shows full

ObSCessed

Ok when you say full is it over full or perfectly at the hot mark. Over filled can cause slippage.next step would be to verify whether the proper fluid is in there I believe the sc300 auto trans takes dexron atf unlike the sc400 which takes toyota type iv.someone please correct me if wrong. Hard to do unless you either have service records or send a sample of your atf to blackstone for analysis. So you may want to begin draining and refilling your atf ,there are numerous writeups on how to do that in a slow safe way that doesnt involve a hard flush. Atf has friction modifiers in it that manufactures design the trans around so if it doesnt have the correct fluid it may not behave.

But just to make sure we understand the problem, is it that the car will not shift out of park to drive or once in drive slips and has no power?

Lowlife1

It goes into gear from park. But if I put in drive its like it starts out in 2nd gear and doesn't pull lile it should. Shifts fine

ObSCessed

Try and film a video taking off from a stop so we can see.

Stilloem

Check transmission TV Cable, check your shifting cable for any slacks, check DTC, check transmission fluid condition.

SC400slide

iTrader: (11)

Did you make sure to check the trans fluid level while the vehicle is running? Checking while car is off will not show correct level.

Lowlife1

It won't let me upload the video