4 wheel locks in

[whirly]

i need help please im english but now moved to newzealand.i own a 89 hilux ssr surf manual 2.4 deisel turbo.when i turn my 4 wheel drive on by pressing the button it engages but when i go to turn it of it does not disengage can any body help me please.but it did disengage once after a few miles so i tried it again and now its stuck in 4 wheel drive,bugger,maybe it will turn off again but this is not meant to do this thats my guess...

[bensonsnuts]

i need help please im english but now moved to newzealand.i own a 89 hilux ssr surf manual 2.4 deisel turbo.when i turn my 4 wheel drive on by pressing the button it engages but when i go to turn it of it does not disengage can any body help me please.but it did disengage once after a few miles so i tried it again and now its stuck in 4 wheel drive,bugger,maybe it will turn off again but this is not meant to do this thats my guess...

Do you know the 4wd is only to be used on loose surfaces.If you've been using it on tarmac & other hard or grippy surfaces you will suffer from transmission wind-up .This prevents the 4wd from dis-engaging.
If it hasn't been like this for long you may be able to free it by taking it on a loose surface & inducing some wheelspin.
A few bumps can also help to free it off

[marky]

put it in reverse with button out you will feel it click and light will go off as you reverse

[whirly]

cheers for the reply's however i have driven now for about 30 kms on the gravel tracks today and it still hasnt come out of 4 wheel drive. bugger. newzealand is really cool for of roading as you can pretty much go anywhere ya like which i think is cool.many thanks all i hope it turns of soon

[Rob]

Hmm, should have come outta 4wd by now. Have you tried chucking it in reverse and stepping on the throttle? Sometimes that can help it drop out of 4wd.

It it definitely in 4wd? Sometimes the light can stay on although it's not actually in 4wd. Try it on some loose gravel and see which wheels spin. You should be able to get the rears to spin very easily if it's 2wd (and have some fun doing doughnuts!). If all 4 seem to be driving.....I'm not sure what the solution is....maybe you should be checking the vaccuum hoses that control the front ADD components or even the diff / transfer case oil levels. ?

[whirly]

cheers rob it has popped out now quite unexpectadly i was not trying to haRD BEFORE but then i done the wheels spins ect and it worked.but now im to scared to put it in 4x4 hi range again.what i need to know now is,is it meant to just turn of when you press the button on the stick?
also you mentioned some vacum hoses that work the ADD where abouts are they and which ones are they?
thanks for all youre help
smiling now whirly
(dohnuts also rule in 4x4)lol

[TonyN]

If you have the electronic t/case, the soloniod often sticks if not used for a while, its on the back of the t/case, other wise its the ADD stuff, look for two solonoids with some vacuum hoses, usually on the drivers side inner wing by the fuse box, and down on the front axle where the acuator is, next to the diff, long side axle. this could be worn and jamming on the shaft, or just sticky.

There is a relay under the dash, by the steering column, that works the 4wd and just follow the pipes and wires to check for splits or breaks.

Good luck.

[whirly]

coo, ill folow the pipes ect back today you have all been helpful cheers all

[laser_jock99]

Here's some good info on the ADD system:

http://www.off-road.com/toyota/tech/add/

As the other posters have said- sticking the car into reverse gear is the first thing to try. If this fails vacuum pipe check is next.

[whirly]

cheers all
its now been in the garage and nearly been fixed ,im waiting on a little control box that is situted behind the dash apparently its knackered. i love my 2 year waranty ...