Question about 2002 Kia Sportage

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4 wheel drive inop

I have vacuum to the hubs.

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If you've pulled a vacuum on both lines from up on top at the canister, then most likely the seals in the hubs are shot. "Make sure you separate the two lines at the "T" and make sure you test from up on top". It's too expensive to replace the seals so I'd install the Warn 60247 manual hubs available on Amazon.com. Cost is $121 delivered including shipping. I just got a pair...took me 20 minutes to install...comes with all instructions.

Posted on Feb 21, 2009

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When you replace 2001 kia sportage vacuum hubs with manual, it it just the front hubs that get replaced?


If it is a rear wheel drive predominately then yes you replace the front vac hubs only as the rear is constantly driving, is it a east west motor or north south , that will tell you a lot

Jan 04, 2014 | 2001 Kia Sportage

1 Answer

1997 toyota tacoma will not go into 4 wheel drive


Has the transfer case ever been serviced? The fluid should be changed every 30,000 miles, if not the works can stick and cause engagement problems. Make sure the vacuum to the front hubs is available, if the front hubs are not locking the front drive shaft will turn but no Front wheel lock up and no 4 wheel drive is available.

Oct 05, 2012 | 1997 Toyota Tacoma

1 Answer

2003 kia sportage 2l wont engage four wheel drive light comes on but doesnt engage


This is a long/hard one to answer as a few things can cause this. First, check the vacuum lines running from the engine down to the front axles for cracks, and make sure you have vacuum to the axle hub. Second, remove and inspect the front wheel bearings, they should be set to proper preload and there should be no signs of water in the hub. And last if there is water in the hub, that most likely means there is rust on the front axle, and the pitting caused by the rust will not allow vacuum to build up and ingage the four wheel drive. the later requires a new front hub kit $$$.

Feb 21, 2010 | 2002 Kia Sportage

1 Answer

4x4 lights come on but it does not go in what could it be


There are issues with the 4x4 system I.w.e ends ingesting moisture/water into vacuum actuation system causing no 4x4 or ratcheting outboard I.w.e ends. (Even if you don't go 4x4'n ) pull off vacuum hoses @ I.w.e ends and check for moisture/water/rust also the I.w.e is not part of the wheel bearing itself It is the part on the axle side (inboard) of the spindle. (EVEN DEALERS CAT LISTED WRONG )Many shops just replace the wheel bearing side this may fix the symptom but not the true cause of damaged I.w.e. ! Check with a reputable dealer they should have info on this condition and repair procedure.
The integrated wheel end (IWE) system contains the following:
Vacuum reservoir
IWE solenoid
IWEs (spring loaded vacuum hubs)
Vacuum hoses
Check valve
The IWE system uses vacuum hubs that engage the front wheel hubs to the front halfshafts or disengage the front wheel hubs from the front halfshafts

The IWE solenoid receives engine vacuum from the vacuum reservoir.
When the 4-wheel drive system is in 2WD mode, the 4x4 module (PCM) supplies a ground path to the IWE solenoid to apply vacuum to the integrated wheel ends (disengaging the front hubs from the front halfshafts). In 4WD mode, the 4x4 module (PCM) does not supply the ground path to the IWE solenoid, vacuum is not applied to the integrated wheel ends and an internal spring keeps the front hubs engaged to the front halfshafts.

Feb 02, 2010 | 1998 Ford Expedition

1 Answer

My 97 ford f150 4 wheel drive whont lock in to 4high fuses are good but no fire 2 dash swich can any one help?


There are issues with the 4x4 system I.w.e ends ingesting moisture/water into vacuum actuation system causing no 4x4 or ratcheting outboard I.w.e ends. (Even if you don't go 4x4'n ) pull off vacuum hoses @ I.w.e ends and check for moisture/water/rust also the I.w.e is not part of the wheel bearing itself It is the part on the axle side (inboard) of the spindle. (EVEN DEALERS CAT LISTED WRONG)Many shops just replace the wheel bearing side this may fix the symptom but not the true cause of damaged I.w.e. ! Check with a reputable dealer they should have info on this condition and repair procedure.


The integrated wheel end (IWE) system contains the following:

Vacuum reservoir
IWE solenoid
IWEs (spring loaded vacuum hubs)
Vacuum hoses
Check valve
The IWE system uses vacuum hubs that engage the front wheel hubs to the front half shafts or disengage the front wheel hubs from the front half shafts.

The IWE solenoid receives engine vacuum from the vacuum reservoir.

When the 4-wheel drive system is in 2WD mode, the 4x4 module (PCM)supplies a ground path to the IWE solenoid to apply vacuum to the integrated wheel ends (disengaging the front hubs from the front half-shafts). In 4WD mode, the 4x4 module (PCM) does not supply the ground path to the IWE solenoid, vacuum is not applied to the integrated wheel ends and an internal spring keeps the front hubs engaged to the front half-shafts.

Good luck and check the vacuum line, start with the simple. Keep me posted, be glad to get your 4wd working again.

Jan 26, 2010 | 1997 Ford F150 Regular Cab

1 Answer

05 f150 4wd will not always engage


There are issues with the 4x4 system I.w.e ends ingesting moisture/water into vacuum actuation system causing no 4x4 or ratcheting outboard I.w.e ends. (Even if you don't go 4x4'n ) pull off vacuum hoses @ I.w.e ends and check for moisture/water/rust also the I.w.e is not part of the wheel bearing itself It is the part on the axle side (inboard) of the spindle. (EVEN DEALERS CAT LISTED WRONG)Many shops just replace the wheel bearing side this may fix the symptom but not the true cause of damaged I.w.e. ! Check with a reputable dealer they should have info on this condition and repair procedure.


The integrated wheel end (IWE) system contains the following:

Vacuum reservoir
IWE solenoid
IWEs (spring loaded vacuum hubs)
Vacuum hoses
Check valve
The IWE system uses vacuum hubs that engage the front wheel hubs to the front half shafts or disengage the front wheel hubs from the front half shafts.

The IWE solenoid receives engine vacuum from the vacuum reservoir.

When the 4-wheel drive system is in 2WD mode, the 4x4 module (PCM)supplies a ground path to the IWE solenoid to apply vacuum to the integrated wheel ends (disengaging the front hubs from the front half-shafts). In 4WD mode, the 4x4 module (PCM) does not supply the ground path to the IWE solenoid, vacuum is not applied to the integrated wheel ends and an internal spring keeps the front hubs engaged to the front half-shafts.

Jan 24, 2010 | 2005 Ford F-150

2 Answers

When engaged in 4x4 hi. im getting this clicking sound while driving. stops when truck stops. its a 96 with the 5.0


It could be several things. The first thing that comes to mind is your u-joint(s) on your front drive shaft. Try turning it by hand, if it has some play in it, it needs to be replaced. There are many other things that can cause your clicking noise tho:

Ball joints
Wheel bearing/wheel hub
Sway bar links

If your clicking noise sounds more like a "electrical" click, Then you might have to try following the noise and give more details about your problem.

Jan 18, 2010 | 1996 Ford F150 Regular Cab

1 Answer

I have a 2004 f150 when i put it into 4x4 it has a ratcheting noise is it my hub


There are issues with the 4x4 system I.w.e ends ingesting moisture/water into vacuum actuation system causing no 4x4 or ratcheting outboard I.w.e ends. (Even if you don't go 4x4'n ) pull off vacuum hoses @ I.w.e ends and check for moisture/water/rust also the I.w.e is not part of the wheel bearing itself It is the part on the axle side (inboard) of the spindle. (EVEN DEALERS CAT LISTED WRONG)Many shops just replace the wheel bearing side this may fix the symptom but not the true cause of damaged I.w.e. ! Check with a reputable dealer they should have info on this condition and repair procedure.


The integrated wheel end (IWE) system contains the following:

Vacuum reservoir
IWE solenoid
IWEs (spring loaded vacuum hubs)
Vacuum hoses
Check valve
The IWE system uses vacuum hubs that engage the front wheel hubs to the front half shafts or disengage the front wheel hubs from the front half shafts.

The IWE solenoid receives engine vacuum from the vacuum reservoir.

When the 4-wheel drive system is in 2WD mode, the 4x4 module (PCM)supplies a ground path to the IWE solenoid to apply vacuum to the integrated wheel ends (disengaging the front hubs from the front half-shafts). In 4WD mode, the 4x4 module (PCM) does not supply the ground path to the IWE solenoid, vacuum is not applied to the integrated wheel ends and an internal spring keeps the front hubs engaged to the front half-shafts.

Good luck and check the vacuum line, start with the simple. Keep me posted, be glad to get your 4wd working again and rate please.

Jan 12, 2010 | 2004 Ford F150

1 Answer

Four wheel drive lights come on but no four wheel drive


The light comes on indicating that the transfer case is engaged in 4wd, but that doesn't mean the hubs are locked. If you have automatic locking hubs, you should check to make sure they are working correctly. This GM vehicle may be equipped with vacuum locking hubs... meaning there is a vacuum line running from the transfer case selector to the hubs on each side. The vacuum makes the hubs lock into place. If those vacuum lines are damaged or missing, they wont lock. If you have electronic locking hubs, they may need to be replaced. Good luck.

Dec 09, 2009 | 1997 Chevrolet Blazer

1 Answer

When in auto hubs the 4 wheel drive doesn't work


They are operated by vacuum. Check to make sure the vacuum lines are connected and not ripped or anything. If that checks out fine, remove the vacuum line from the hub and apply vacuum to the hub, if the hubs lock then the problem is in the vacuum line or switch.

Apr 08, 2009 | 2006 Ford F 350 Super Duty

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