Question about Toyota Cars & Trucks
It could be that the sensor is not stable. but how how does the drive feel is there any indication the the 4wd is really applied or is it just the light that flashes
Posted on Apr 19, 2017
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Posted on Jan 02, 2017
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.
Posted on Sep 10, 2008
SOURCE: I HAVE A NEW JEEP
Don't mess with it!!!!! Your new vehicle has a warranty. Get back to the dealer ASAP and don't take anything apart. You paid good money .... let them tear their hair out.....that's what they get paid for!!!!
Posted on Dec 11, 2008
If its not engaging into 4 WD the vaccum actulator is more than likely stuck. The actulator is located on the front of the axle next to the the front gear hub it will have a plastic cover over it. Unbolt the two 10mm bolts that hold the cover on and spray down with WD-40, also pull back the rubber cover thats on the actulator staff and spray it. You might have to hit the staff a few times to get it to move just make sure its in 4WD. I had the same problem, that part is exposed to alot of water, snow, salt and so on. Or you could just replace it but its cheaper to spray it down with WD-40
Posted on Apr 18, 2009
Get a Toyota shop manual before you attack the dash. There are a number of screws and clips that are not obvious, and there is a good chance you will get frustrated and break something if you just go at it.
On the Sienna, Your going to remove a good portion of the dash just to change light bulbs on the instrument cluster.
Get a shop manual, and the job will go smoothly. I would have not figured it out half the things is do without the instructions to what i am working on.
I know the dashboard HAS to come off. This may not help but I'm sure if you check the dealer they can give you an estimate of time/labor vs part cost.
Knowing the cost will make you invest in a shop manual, or you can go to Auto Zone or Parts Source for a print out, there free and you can get the parts from there too.
Posted on May 04, 2009
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