4WD light not turning on

[4x4mike]

Ok, on the driveway with the shifter in 4hi the driveshaft doesn't move (engaged). When if shift into 2hi and go forward and back a few feet it disengages and the driveshaft will move when I turn it by hand. I'm Mr. Mom tonight so it'll be after 8 before I can jack up the front.

[4x4mike]

Mr. Mom jacked up the front of the 4runner and found this:

When in 4hi, transmission in N and parking brake on the driveshaft does not spin by turning it with my hand. When I turn on wheel/tire the wheel/tire on the other side spins in the opposite direction. This is the case with both front wheels.

After I tried this I climbed in and put the transfer case in 2hi. I turned the driver side wheel and only it spun. Same with the passenger side tire. I climbed under and the driveshaft would spin freely in both directions by hand.

As far as I know it's all working and I may have a blown bulb. The 4wd fuse looks good so it looks like I'll be fine for Pismo.

Thanks for the advice.

[reggie 00]

Not sure if its the same on yours, on my 90 i had a wire connected to the the ADD shifter fork that would basically light the light after it shifted the ADD sleeve.

When i forgot to put all that back in and accidently welded the ADD sleeve in place, to get my light to work i had to jumper the connector. Yours is probably the lamp like you said, but to make sure peek under the skid plate to see if that wire is plugged in. 5 min versus 1hr.

[partsman93274]

I have a 91 4runner and when it's in 2hi I can't turn the front driveshaft by hand. I used a pry bar to gently turn the front shaft and the whole truck moved. I don't think it is shifting out of 4hi. Anyone else have this problem? Does that year have vacuum lines that I should check? I just got this vehicle and want it working in time for pismo.

[Crinale]

in 2 hi the drive shaft should turn by hand on the 91's... and yes there are vacuum hoses... do you have the v6 or the 4cyl? if you have the v6 (3vz-e) its got a WHOLE MESS of vacuum hoses... i wouldnt even know where to start...

[partsman93274]

It's a four cyl. Not a big fan of the v-6. I'll crawl under tonight and see what I find. I might put all four tires in the air and spin the rears while watching the front driveshaft.

[partsman93274]

So I look at the vacuum lines on the axle disconnect on the front only to find that they have been gone for awhile. I put the 4runner up off all four tires and still can't move the front driveshaft without the front wheels moving. I am hoping that this means the ADD is stuck in 4WD mode and I shouldn't worry about it. I put it in 2WD and only the rear shafts when in gear so I guess it's all good. Right?