My 96 SC400 won't shift into 4th gear, my OD button is broken but this isn't the problem since the OD is permanently on now. I have that whine that everyone talks about and I hope it's the tranny mount. My tranny seems to run and shift fine except for this on huge problem. Also I just had the tranny serviced since it was running very poorly, runs great now 1st-3rd. I searched and couldn't really find anything, anyone have any ideas? thanks!

 

the bulb on the cluster is probally out.....how are you so sure that its working properly......try a different shifter and see if that fixes your problem....if not maybe one of the solenoids in the tranny arent shifting into 4th gear.......

 

....word.....

 

i know it's ok because when i hopped the OD wires together the "OD off" light came on, i was really hoping that it was burned out, so i guess it seems that one of the tranny solenoids is out? Does anyone know how i would go about testing this to see what the problem is? thanks!