did the clutch cable come off? (if its a manual) that or there is a problem with the transmission.
If it won't shift in all the gears.
The most common reason for a transmission not to shift properly is low transmission fluid. Make sure the transmission fluid is up to the full mark.
Get the fluid to operating temperature like 15 minutes driving should do it, stop and with foot on the brake shift through all the gears and do it slowly, put in park and with the car still running check the level on the dip stick. Check on level ground.
1994 mark viii wont shift into 3rd
Concole
Possibly tappets.
It's on the drivers side of the transmission.
Drop the transmission oil pan
If you mean that you can't shift the shifter while pressing on the brake, I would say that it is down by the brake pedal.
have you got the sterring lock on Maybe you forgot to push your brake -pedal. While pushing your shift handle will move.
13 quarts that is including the torque converter
Drivers side, in the front of the engine, remove cap and add.