Either your clutch is stuck or your synchro mesh and or bushings have gone out. you need to have your tranny serviced
why is my 2006 Nissan altima gear shift stuck in park
If the vehicle is stuck in a gear then the shift censor is out. The other reason could be that the linkage on the transmission is broken.
could you be more specific?
On the Nissan 240SX the electric overdrive switch is located on the right side of the transmission. Overdrive allows shifting into the auto's fourth gear.
A 1992 Nissan NX 5speed will use approximately 3 to 4 quarts of gear oil in the transmission. The gear oil can be purchased at any auto parts store.
The stock rear-end gear ratio for all US 240sx is 4.083
the gears are stuck
Hit it with a big hammer
Bad transmission? Bad Clutch?
Torque converter is shot - not serviceable - new gearbox required.
If you did not bench bleed the master, you need to do that.
brake/shift interlock switch needs replacing