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Mauricio, Technician
Category: Car
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Experience:  15 years working in all makes and models
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2000 kia sportage: indicator light..I engage the 4wd..front wheel

Resolved Question:

I have a 2000 kia sportage. My 4wd indicator light is on when I engage the 4wd, but the front wheel do not engage. The last time the problem was vacuum line. What are the ways to fix it or what might be the problem if the vacuum is not the cause
Submitted: 7 years ago.
Category: Car
Customer: replied 7 years ago.

2000 Kia

Already Tried:
I would like to know how to locate the vacuum line that the previous mechanic found to fix the 4wd. I have a feeling the problem came back. If that is not the problem, I don't know what my next question could be.
Expert:  Mauricio replied 7 years ago.

SOURCE: Kia Technician Times

TITLE: 4WD Control Vacuum Line




XXXXXmode inoperative (diagnosed either during or after replacing knuckles and hub seals) due to insufficient vacuum being applied to the hubs.


In some cases moisture has entered the vacuum system, and vacuum lines have become corroded, plugged, or have developed a leak.


Expert:  Mauricio replied 7 years ago.
Verify that withXXXXXmode selected, vacuum is present at the T-fitting downstream from the solenoid (see photo). If not, diagnose and repair as required, otherwise use the following procedure to replace the vacuum lines:
Note: Procedure applies to right side line; left side needs no further info.


Disconnect and remove battery and battery tray. Leaving ground cables attached, remove clamp bracket from battery tray bottom and move out of the way. Remove plastic air resonator and disconnect throttle cable (plus A/T control cable if equipped). Disconnect MAF and IAC connectors, and 6 mm bolt holding DLC and MAF brackets to air cleaner housing. Disconnect air intake tube from throttle body, and MAF sensor from air filter housing. Remove tube, duct, and sensor assembly and set aside. Loosen rear engine hanger bracket and front surge tank support bracket. Disconnect coolant lines from throttle body or (alternatively) remove throttle body from surge tank but leave coolant lines attached. Remove surge tank. Cover intake to prevent anything from falling in. Mark steering column shaft and coupling for later reference (see photo 1), loosen clamps on both sides of the coupling and slide coupling back on intermediate shaft, disconnecting it from steering column.

Disconnect vacuum hoses in right wheel well and from T-fitting below theXXXXXsolenoid on the drivers side of the engine compartment. Pry vacuum line loose from 4 plastic retainer clips; 2 on bulkhead, 2 on inner wheel wells. Using slack in harness and carefully bending vacuum line only as necessary, free line from behind the harness bundle against the RF inner wheel well. Free vacuum line from behind the brake line attached to the (outboard position) of the differential pressure valve.
Note: Try leaving the old line intact while removing it and carefully observe the "route" you use to get it out. This will serve as "practice" that will come in handy when you install the new one.


Starting from the drivers side, free up old line and move it up until it clears the cylinder head at the location of rear engine hanger. Move and "snake" the line carefully as required to free it up and pull it out. Install the new line the same way, and assemble everything in reverse order. Observe reference mark on steering shaft when reassembling. Test drive and checkXXXXXoperation.

Mauricio, Technician
Category: Car
Satisfied Customers: 845
Experience: 15 years working in all makes and models
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