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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Need to know where ADD sensor connects under hood ASAP

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Old Aug 10, 2010 | 03:48 PM
  #1  
stormin94's Avatar
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From: Lake County, CA/Sacramento
Need to know where ADD sensor connects under hood ASAP

I've had the end that does not connect to the front differential ziptied to my skid plate for a while now. Finally have some motivation to fix it.

Basically looking for someone to explain where the other end goes under the hood , or if that's even where it goes. 1994 4runner 5 speed 3.0

Thanks in advance!!!!
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Old Aug 10, 2010 | 03:56 PM
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From: Lake County, CA/Sacramento
So far I have not came up with a relevent search from YT , google, or my chilton or haynes manuals. I've been searching under the hood for about an hour and a half and it's bugging me.
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Old Aug 10, 2010 | 06:24 PM
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From: NW Ark on wooded ten acres...Ozarks at large!
The two switching valves on my wife's '92 are on the passenger side, just above the wheel well, and behind the fuse box.
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Old Aug 10, 2010 | 06:30 PM
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From: Lake City, Fl
FSM maybe?

link's in my sig
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Old Aug 10, 2010 | 06:37 PM
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From: middle of no where Alaska
Originally Posted by thook
The two switching valves on my wife's '92 are on the passenger side, just above the wheel well, and behind the fuse box.
That is correct.
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Old Aug 10, 2010 | 06:56 PM
  #6  
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From: NW Ark on wooded ten acres...Ozarks at large!
Originally Posted by toyota4x4907
That is correct.

Thanks. Sometimes, when I'm standing on my head, the world doesn't look quite the same. So, wasn't sure........
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Old Aug 10, 2010 | 08:23 PM
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From: Lake County, CA/Sacramento
Thanks for the help. I found it after I took off the skid plate. The other plug was hiding back behind the alternator and stuck back there a little bit. At first glance it looked like just another couple wires, but it was the connector I was looking for. So now when I engage 4wd, the light turns on and it works properly. I should've clarified that I was looking for the plug in rather than the final destination of it. I was extremely frustrated at the time.


I cannot stand having something and not knowing where it goes. OCD I guess.
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Old Aug 10, 2010 | 10:09 PM
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From: NW Ark on wooded ten acres...Ozarks at large!
Oh, you meant the indicator switch. Sorry 'bout that.
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Old Aug 11, 2010 | 09:58 AM
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From: middle of no where Alaska
Originally Posted by thook
Thanks. Sometimes, when I'm standing on my head, the world doesn't look quite the same. So, wasn't sure........
I can see clearer whilst upside down. Even more so with my left eye half shut and my toe in my ear while singing Mary Had a Little Pig.
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Old Aug 11, 2010 | 11:22 AM
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From: Brier, Washington
Best advice i can give you. Get manual hubs, and get rid of the add system. It has caused me nothing but trouble. My buddy and i both had similar problems with the add within 10 minutes of eachother.
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Old Oct 23, 2010 | 10:29 AM
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From: jacksonville florida
Talking add problems

Originally Posted by 2DoorRunner
Best advice i can give you. Get manual hubs, and get rid of the add system. It has caused me nothing but trouble. My buddy and i both had similar problems with the add within 10 minutes of eachother.

Hey man what kind of problems were you having i did a 5 speed swap and my add will not unlock cannot really tell while driving but just annoys me
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Old Oct 23, 2010 | 10:44 AM
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From: Brier, Washington
Problem wasnt with unlocking, it wouldnt lock. I dont remember what was wrong with his, but my actuator was stuck.

Unless you mixed up the vac lines, it seems to me that your actuator is just stuck. You can pull of the add cover and manually free it up, or just drop a few bucks on a set of manual hubs at the wrecking yard.

(sorry for the bad description, i dont know what all that junk is called, but it gives you an idea.) Search around and you can find pictures of what you will be dealing with.
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