Why won't 4 wheel drive won't engage on 2002 kia sportage?

Answer 1

My Sportage is a 2001 model but I also had trouble initially getting it into 4wd. The trick is to shift it when the clutch is engaged and you are moving. It goes easily from 2wd to 4wd and back again like this, but if you try to shift it while stopped and with the clutch pedal depressed, it won't go. If the shifter moves, but 4wd still won't engage, the problem is probably with the automatic locking hubs. These are activated by vacuum lines that are prone to breaking. Check that there is no leak at the vacuum solenoid (just forward of the master brake cylinder in the engine compartment), and then check the lines in the wheel wells. Replace any broken or defective lines. If 4wd still doesn't work, the problem may be with the automatic locking hubs themselves. These can be replaced with either replacement automatic hubs or manual hubs. Automatic hubs will restore shift on the fly capability, but the manual hubs are cheaper and more reliable because they don't rely on vacuum lines. You will however have to stop the vehicle and manually set the hubs every time you select 4wd. Good luck.