Question about 2000 Kia Sportage

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2000 Kia Sportage 4x4 Shifting into 4wd, light indicates it's engaged, but the front wheels do not respond. Where is the vacuum line that I am told detached go?

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Sound like your hubs are probably bad. The vacuum hubs are known to cause problems. Replace with Warn hubs.

Before replacing hubs, check vacuum lines to the hubs, no tears or breaks allowed, this fixed mine, rubber hose is cheaper... upland.

Posted on Aug 31, 2010

  • ZJ Limited
    ZJ Limited Aug 31, 2010

    My brother-in-law 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.


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Hi! There are lots of vacuum lines that runs inside the engine room. You may start looking near the car's firewall open tube then insert the unattached vacuum hose. HOpe this helps and thank you for using FixYa!

Posted on Sep 08, 2010


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4wd indicator light comes on while driving

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Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
- If it turns it is a problem with the transfer case.
- If it doesn't it is a front axle engagement problem ( this is what you seem to have, the transfer case is engaged and will drive the front shaft mine was a key on engine off test ).

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•With the truck running ( with front wheel back on the ground ), switch from 2WD to 4WD and back again, the vacuum shift motor should move the lever on the front axle.
-- If the vacuum shift motor does not move:
1.Check for vacuum on the lines while shifting between modes. Pink vacuum line is 2WD mode, Light Blue vacuum line is 4WD.
2.Check the fuses for the 4WD system and the solenoids.
3.Check the vacuum lines from the vacuum shift motor to the solenoids on the firewall.
4.Check the vacuum lines from the solenoids to the vacuum reservoir box behind the battery.
5.Check the vacuum reservoir box for cracks.
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7.Could be the shift plate contacts in the transfer case are corroded / not making good contact, and not activating the solenoids.

Usually the case is cracked vacuum lines from the solenoids, the next common is a cracked vacuum reservoir box, and 1 time I have seen the mount for the vacuum disconnect motor broken ( motor floating free so it could not push against the axle )

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1 Answer

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I found the same problem on my sportage, it was the vacuum tubes behind the wheels that were split. Put the car on full lock and jackit up and you should see the tubes.A simple job to do, just get some silicon vacuum tube off ebay (I think it was 6mm bore but it is not critical as long as you can fit it over the connecting tubes.

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Nov 06, 2009 | 2002 Kia Sportage

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its the vacuum lines for the hubs they crack and you lose 4wd

yes there is a shop maunal online
but it leaves out details
kiatechinfodotcom its free

please rate and ask any questions if u need more help

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