1st & 2nd gen 4-runner tech (factory service manual and common fixes)

[Gallonspermile]

Hey everyone. It's probably a dumb question, but I had a bit of an oops in my runner and I'm wondering what this part here is. To be fair, my buddy who built his 1st gen has no clue what it's called. Any help is appreciated! Edit: Nvm. Part found and problem hopefully solved. Let's hope there's no surprises...

 

[Shpakproof]

Looking for some help!

Please point me in the right direction.
I have a 93 4Runner v6 3.0l automatic. Front end is vacuum actuated.
Issue 1-

I swapped transmissions and transfer cases as a whole a while back. Tranny was the exact same, same shifter same plug, everything seems to shift, reverse lights work, I do have the o/d light flashing but I figure that isn't that big of a deal has never affected proformance, have drove this way for about 40,000km or so.
Alright so the problem lies with the transfer cases. I don't have the existing one anymore, and I can tell you there was a substantial difference, . The transfer case that was originally in the vehicle had a sliding shifter, push button on top and slide into 4wd, n, 4lo.
The new one that is in there has the mechanical shifter coming right out of transfer case and directly stick shifts into 4hi, n, 4lo.
My problem lies within being able to activate the 4wd.
Right now I pull transfer case into 4hi and there is nothing hooked up wiring wise to tell the vehicle to turn on the vacuum control system to lock in the front end.
Now there are 2 wires coming off transfer case behind the stick shifter that are not hooked up to anything as there is nothing on vehicle iharness in that area to plug into. There are also 2 wires from vehicle harness that are just sitting there not plugged into anywhere on current transmission or transfer case and I am only supposing one may be the 4wd switch. Though I have tried jumping them with key on to see if I could hear actuator kicking in with the jumping of wires. No prevail.
So my question is, does anyone know the easiest way to have 4wd? Do I just wire in a 12v switch to turn on the vaccuum valve that engages the 4wd fork in the front end?
Or do I try and hook the proper wires up together under vehicle so the transfer case is the switch like proper? If I was educated on what wires are used.
Suggestions on this issue is what I need the most.

Issue #2-
Rear brakes.
Right now I have none, they are plugged off at front end by passenger front tire. They are leaking from above the gas tank. Both ruptured at once. Right now I just use the front brakes (I should do a good burnout video) lol.
It is not a daily driver I use it to go out into the bush camping and now want to use it for hunting this year and keep the kids warm.
My question about the brakes is; out of the 2 lines that run along frame and the dissappear above fuel tank and the re appear by the rear end, which one ties into which one?
I mean along the frame they run side by side , so call them passenger and driver side brake lines. And then in the back end there is an upper and lower brake cylinder type hookup that they tie into, and without taking the tank down I would like to re-route new brake lines and get them hooked up to proper side of the vehicle.

No where have I been able to find out what I want to know on either issue.
I hope I have been informative enough for someone to give me an educated response. To find someone with knowledge on these things is hard enough, the Toyota dealership can't figure out why I want to fix this thing and told me to come in and buy a new one.
So I am hoping on some advice! Anything would be greatly appreciated!
Thanks!

 

[4Reak Show]

Wall of text.

1) 4wd

2) brake lines

1) 4wd is a 2 part system. First the transfer case engages a switch, which then grounds a relay and then also allows ground to flow to the front diff switch. The 4wd light will come on once the fork is activated internally as there is a switch on the front diff.

For bypassing, yes you can. The 2 vacuum valves are on the right firewall of my 95. Both get fed a constant ground and the relay switches which one receives power.

So one way would be to tap into each valves power line and run a toggle switch of your own to apply power to each one as you wish.

If it were me, I'd try and make it work like factory but it seems like you don't mind either way

2) the rear brakes should only have a single brake line that splits to each wheel after the flex hose. So I'm not sure what you're seeing. Again, my 95 has ABS and it still only has one rear brake line until it get to actual axle.

Post a pic and I'll see if I can help.

Good luck

 

[4Reak Show]

Just thought, you should be able to just unplug each one and switch them as well and then if the actuator and all that work it should be in 4wd.

Just re read the wiring diagram for 3.0 auto and it's pretty confusing

 

[Shpakproof]

Thanks so much for the reply.
So what your saying is that by switching the 2 plugs vise versa should either put my actuator in normal (2wd) and then when I switch them it will be in 4wd? That would be the easiest fix ever! That never even crossed my mind and I will give it a shot!
And ya both the brake lines go from master cylinder to passenger wheel well, and then go to a "T" type fitting, from there I have 2 lines that go to front brakes, one off either T. And then I have 2 lines that twin side by side along frame towards rear, then jog up over fuel tank (super corrosion) and then drop back down and go to separate "actuators?" you could say all this is hard piped in soft copper, which then goes from these final devices to the rear brakes. Idk why so complicated of a braking system.

 

[4Reak Show]

Thanks so much for the reply.

So what your saying is that by switching the 2 plugs vise versa should either put my actuator in normal (2wd) and then when I switch them it will be in 4wd? That would be the easiest fix ever! That never even crossed my mind and I will give it a shot!

And ya both the brake lines go from master cylinder to passenger wheel well, and then go to a "T" type fitting, from there I have 2 lines that go to front brakes, one off either T. And then I have 2 lines that twin side by side along frame towards rear, then jog up over fuel tank (super corrosion) and then drop back down and go to separate "actuators?" you could say all this is hard piped in soft copper, which then goes from these final devices to the rear brakes. Idk why so complicated of a braking system.

Well I'm assuming your transfer case is working mechanically but electrically is NOT changing your solenoids. So it keeps the 2wd one energized no matter what. Problem is, if the 4wd IS switching power between vacuum valves properly then this won't work alone. You'd have to also switch the OUTPUT vacuum lines between them. (which would actually be a test to see if solenoid is frozen. Which could be your whole deal). Does that make sense? Pop the hood, switch the electrical and see what happens. It's not going to hurt anything. But for diagnostics you gotta start somewhere. Just mark stuff or take pictures before you start yanking on things hahah

As for brakes, I'll see if I can trace mine back soon. I should be back underneath it this week anyway. In the meantime, try and take a few pictures as best you can.

 

[Shpakproof]

Thanks so much for the info, when I get back home this weekend I will try it out. And I'll take some pics of the brakes as well.

 

[2lokey]

Q u e s t i o n

HI!

1990 22RE 4RUNNER

I swapped out the stock radiator for a CSF 2314 3-row.
(OEM one was crumbling to pieces)

It bolted in just fine but the stock fan shroud doesn't fit (too large).

anyone know which fan shroud will fit the CSF 2314 ?
1st gen T4R?
pickups?

Couldn't find anything about shroud fitment for these CSFs

 

[Pockets907]

Anyone happen to know what the wheel offset of a Gen 2 4Runner is?

 

[jmtigerfan]

Found the FSM

Thanks SV Dude, found the FSM I needed for the 3VZ-E I needed at this link.


https://docs.google.com/folderview?i...S1Xdk5BWXdrY0k

 

[Blind Cleric]

Anyone happen to know what the wheel offset of a Gen 2 4Runner is?

I've read 8mm. Do you mean backspacing, by chance? That would be 4.75

 

[Lemons87]

I have a 1995 4runner with the 3vze. I had a code 52 so i replaced the knock sensor and wire. The code is still there along with the CEL. Both pigtail and sensor replaced with brand new parts. Anyone have any clues as to what it could be. ECU maybe? Vacume leak possibly. Im at a loss

Sent from my SAMSUNG-SM-G930A using Tapatalk

 

[4RunnerAquasport]

I have a 1995 4runner with the 3vze. I had a code 52 so i replaced the knock sensor and wire. The code is still there along with the CEL. Both pigtail and sensor replaced with brand new parts. Anyone have any clues as to what it could be. ECU maybe? Vacume leak possibly. Im at a loss

Sent from my SAMSUNG-SM-G930A using Tapatalk

I personally have no experience with the 3vze, but here is a quick search I did on the Yota tech page if you haven't seen that forum yet.

https://www.yotatech.com/forums/f116/3vze-code-52-knock-sensor-184480/

 

[Lemons87]

I personally have no experience with the 3vze, but here is a quick search I did on the Yota tech page if you haven't seen that forum yet.

https://www.yotatech.com/forums/f116/3vze-code-52-knock-sensor-184480/

Thanks i have some more tests to run in the coming days after reading that thread. Ill do the resistance tests first being i have everything to do that already. If that all checks out ill try and get another ecu and go that route. Thanks

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[4RunnerAquasport]

Thanks i have some more tests to run in the coming days after reading that thread. Ill do the resistance tests first being i have everything to do that already. If that all checks out ill try and get another ecu and go that route. Thanks

Sent from my SAMSUNG-SM-G930A using Tapatalk

This might help if you haven't seen it:
Here is a way to search google for all related threads on that topic, as one thread might not have your situation exactly.
When I type this into the regular google search bar in your browser, several different threads pop up. Hopefully there is something in all of those that will help. Once I found this way of searching, I think it opens up more related pages.
So when you type in your question, put in
site:yotatech.com/
after your question or key word and it seems to work better. Good Luck!
Example:
code 52 knock sensor 3vze site:yotatech.com/

This is the page that pops up from google.

https://www.google.com/search?sourc....0...1c..64.psy-ab..1.1.144.0...0.7orUaNYlLbs

 

[xmindbender]

good info

 

[Nesseralla]

Help

I got a stock 4Runner from my bestfriend that passed away on June 4th 2017 so I’m doing everything he wanted To do to it but he was in the middle of putting a tranny in it and it’s a 95 he was putting a 97 in it but what I hured that they don’t work for other years so I got a parts truck and the tranny still won’t shift outta first gear even if I drop it In low and try shifting it but it won’t and I need help ASAP cause I’m trying to get it to his memorial the parts truck ran and drove fine but it won’t now

 

[4Reak Show]

I got a stock 4Runner from my bestfriend that passed away on June 4th 2017 so I’m doing everything he wanted To do to it but he was in the middle of putting a tranny in it and it’s a 95 he was putting a 97 in it but what I hured that they don’t work for other years so I got a parts truck and the tranny still won’t shift outta first gear even if I drop it In low and try shifting it but it won’t and I need help ASAP cause I’m trying to get it to his memorial the parts truck ran and drove fine but it won’t now

Need more info. If you're trying to put a 97 trans into a 95 4Runner it won't work. Totally different. Different generations even.

 

[Nesseralla]

I got a 95 parts truck and pulled the 2wd out of it and put it into My 95 4wd just won’t shift the 97 4wd did the same thing u help me out or someone can I’ll send them some cash

 

[JAY4R]

1st post - my ride.

85 DD
199K and some change
Not sure why all my pics upload upside down.. any suggestions?