you may not be at a high enough rpm
the difference between a 6 gear and a 4 gear car is 2 gears one has 6 gears and one has 4 gears
insert the key in car ignition, turn the key, put it in gear and lastly press hard on the gas
Put your car in Neutral(N) on the gear shift (if you have a manual transmission do not put it in a gear, leave in neutral) then pull up on the 4 wheel drive gear lever. do not drive faster than 55mph in 4hi, and never faster than 15 in 4lo, also you should never put it in 4lo unless you are absolutely positively in an extreme situation.. If you do need to put into 4lo, put car in neutral and roll at about 2-3 mph then shift into 4lo, if you are not moving and you cant put into gear, DO NOT force it, you will break the cable and be stuck in 4 wheel drive. ----
insert the key in car ignition, turn the key, put it in gear and lastly press hard on the gas
Low Fluid level. If the car has a three-speed automatic, the torque converter clutch solenoid is locked up. Unplug it from the transmission, and see if it still dies when put in gear.
Are you letting the car warm up before putting it into gear? because you should, especially in cold weather.
neutral
While stopped, and in park or neutral, move the 4wd selector to the desired 4wd mode, put car in drive or 1st gear and drive.
about 4
Automatic transmission? 2 vehicle will shift only from 1st to 2nd gear 3 vehicle will shift from 1st to 2nd to 3rd gear 4 vehicle will shift from 1st to 2nd to 3rd to 4th gear
The gear between 2nd and 4th. On a 3 or 4 speed it would be direct drive. A 1:1 ratio
Because your transmission is broken. When a car wont go into gear(s) there is something wrong with the linkage, the transmission control system ( electronics on some newer vehicles ), the clutch or the the transmission itself.