i have a 92 sc300 with 80k miles. A few weeks ago i noticed when going at like 60 mph my rpms are like 4000 and wont shift down. I think my over drive doesnt work cause when i switch it on n off the rpms stay the same. Any ideas????

Thanks

 

is it going into 3rd or 4th gear? Your trans might be in limp mode.

 

What he said. I would go get it checked out...

 

what is limp mode.....? it goes into 3rd n 4th but no overdrive.