For Trackers (and Sidekicks) of this era (1989 to 1998) the front axle locking device is a locking hub on each front wheel. (There are no actuators until the model change in 1999.) Locking hubs come in two flavors, Manual and auto locking hubs. A look at the from wheel should tell you what you have. Manual hubs have a knob like lever with the word "lock" and "free." Auto hubs say "Auto-Locking" right on them. Both types of hubs require servicing periodicity. (Normally annually.) This means removing and disassembling. Then cleaning and light greasing before reassembling. There are some good videos on the web on how to service the manual hubs. Auto hubs are a little harder to ensure they are working properly, but some people like them. (Not me.)
Please note two things:
1. Due to differential action, BOTH hubs need to be locked for any power to be applied to the front wheels.
2. Trackers of this era are PART TIME 4x4, NOT all wheel drive. They have nothing providing for different wheel speeds front to back like a center differential. This means they should NOT be used on non-slippery surfaces like dry pavement. Beside causing handling and braking issues, it can destroy your transfercase driving on dry pavement in 4x4 due to what is called "driveline wind up".
PLEASE if you do not understand this, look it up... if you still do not understand, ask and do not use the 4x4 until you do.
SOURCE: 4WD SYSTEM
You probably have an issue with the A.D.D. (Auto Disconnect Device) on the front axle. That is what lights up the light. I'd need to know the year to get you better info. If it is newer, check the 4WD fuse under the dash. But, in any case, if it IS in 4WD, the vehicle will make tire noises on a real tight turn, and it will lurch on the same tight turn, like it is trying to drill itself into the street. 4Runners do not have a viscous coupling, in 4wd, all 4 wheels run the same RPM.
SOURCE: 1999 Jimmy 4wd not engaging. It has push button
could be your front actuator or your actuator motor on the transfer case.
SOURCE: Engage 4wd lever. no light
Good Afternoon. We use these type trucks for our plowing during the winter so I am familiar with what you're going through. There is a fuse for the 4wd, and there is an actuator in the front differential. What you might try first is to get under the truck and pull out the actuator and then put it in 4wd if it moves out it is locking in your front end. Hope that helps.
SOURCE: 1993 chevy pickup 2500 4 wd. 4 wheel drive will
physically watch the actuator and have someone else activiate it. If it moves like it's supposed to...you could have a broke axle, third member or even the locking clips on one of the front hubs...
SOURCE: my pajero won't engage or disengage from 4wd and the light in the dash keeps flashing
You need to have the system scanned for fault codes.
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
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http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
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http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
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http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
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http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
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http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
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http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
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Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
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4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
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http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
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http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
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http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
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http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
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These
details will help.
Thanks.
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
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4 wheel drive system will not disengage?
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
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4WD light is flashing and beeping? NO 4WD
high?
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
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2002 Jeep Wrangler: 4WD Idiot Light is ON?
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
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Traction control switch will
not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
--------------
Service 4wd warning light on Dash?
http://howtobyme.blogspot.com/2011/11/service-4wd-warning-light-on-dash.html
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Car automatically switches to 4wd
low?
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These are the help links related to your issue.Going through these help links,will guide you to troubleshoot and solve the issue noticed on your car.
Keep updated for more help.
Thanks.
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