Ive basically switched the hose i had in yellow with the position you said it should be in. I also had to change the hoses going to teh transfer case and Viola! it seems to work fine now. The 4wd light comes on and it definetly drives all 4 wheels in 4h and 4l. the only thing is that im not sure if the add is on when its in 2h. also im not sure what disconected from vacuum and plugged into the non vacuum.
jeff

What I really need is a Vacuum hose diagram so I can redo the *****. It seems to me that when the engine was replaced... about 50k kilometers ago they bungled the vacuum hose routing.
Does anyone out there have a Vacuum Diagram for a fully loaded v6 3.0 5sp???

Thanks Jeff

[QUOTE=NorCal 4Runner;126963]Oh yeah I forgot to post the rest of it. (Wife was bugging me about something ) On A.D.D. cars, if you don't drive in 4wd often, sometimes the hubs will not lube itself and it will not engage. When you switch the little vaccuum hoses underneath the front diff, you are manually engaging 4wd... of course you would want to switch the hoses back after you've driving in 4wd for a while. That did the trick for me but I'm not sure if it's different for automatic 4runners.[/QUOte

my trans was changed before i got the 4runner so i was wondering how the add system knows when you engage the 4 wheel drive. There is a few electric conections on the trans that aren't hooked up i think one is the reverse but not sure what the other one is and i thought that might be y 4 wheel drive does not engage or if it is my actuator cuz when i changed the hose's it did engage

Hey yall. First post here. Trying to figure out my transfer case issues too. Does anyone have a picture of theirfront differential with the hoses plugged in? As far as I can tell mine are non existing.

Thanks,
Ay Ay Ron

that would be very handy to have!
or at least a bunch of detailed pics

I followed NorCal 4Runner's instructions and swapped the vacuum hoses. Now the 4 x 4 light stays on and the 4 x 4 works when it is selected and doesn't when it is diselected. Before there was just a click or two and the light flickered; no 4 x 4. Should I asume the machic accidental mixed them up? He left several vacuum hoses off and minor nuts and bolts here and there (no I won't be using him again).

Hi all,

I know this is an old thread but it's exactly on point with my question.

I'm very new to 4Runners, I was a Subaru driver till my friend crashed it for me, now I share my girlfriend's '95 automatic 4Runner and I'm a convert!

So I see gears L & 2, are these the 4WD? I'm also not getting a 4WD light on the dash when I use these gears. Do I need to drive in them for a while before it engages?

So far I've only attempted them on short distances.

No, L & 2 would be the transmission gear selection, there should be another shift selector to the left of that one that is the transfer case. If you don't have two shifters then you have a 2wd runner.

Hope this helps.

I’m new here and wondering if my Hilux has this same a.d.d system described sounds interesting.

A.D.D. Disconnects at the differential.

I'm having the same problem except in an automatic, on top of that I also have a code 42 which may be the speedo cable my speedometer is dead, it's probably the cable

I found a wire harness disconnected under my dash I'ma take a pic of it can someone help me identify where it may go?

The 4WD on my 93' wasn't engaging and it turned out to be that the wiring down there had been disconnected / severed. A strange revelation but relatively quick fix.

Push voltage to the actuator manually