This is A pic from a different 3.0 than mine...I need help finding out what this pipe is "Circled in red" I have the copper looking pipe on my engine but I have no rubber hose going from it "Green rectangle" ...WTF??? Is it for air conditioning ?? Any help thx....[IMG]jpeg [/IMG]

 

That little pipe is plugged on mine, too, with a similar, factory-style plug. I dunno what it is, mebbe just a test port to get vacuum behind the throttle body.

Can't 'really' see what you have in the green box. Just down below that area on the backside of the throttle body is the Throttle Position Sensor. VERY important part. Big plug with several wires attached , going into it.

I MUST say, that is the CLEANEST looking engine compartment I have ever seen on a 3.0.

Mike in AR

 

Ya although thats not my engine mine is nearly that clean after I detailed with a few "gunk" products and some light scrubbing.....But the rectangle is the attachment of a rubberhose goin to the pipe withthe angle on it ..."See attachment in 1st post"

 

Yah,, I saw the pic ,, even zoomed in on it with the browser. I'll have to look at mine tomorrow and report back.

 

Hope this is a better image having troubles doin a direct image in the post .

 

Here's a couple of shots. My little pipe is not and has not been connected to anything since I have owned this 4runner.

I'll tryi to post another pic in the next reply, re: your green box line.

Mike in AR

 

Grrr. Won't let me post the pic I want. But I finally stood on my head over behind the intake manifold and saw where the end of the vacuum hose you have in your green box goes. This is the TOP hose.

It attaches to the bottom port of some type of sender -- probably a heat/cool sensor of some sort. Then, the TOP port on that sensor connects to the PURGE port of the charcoal fuel evap cannister on the passenger side inner fender.

It's pretty tight quarters behind the intake.

Hope that helps.

Mike in AR

 

Thanks for the help Regguy412 ... Not sure why I have no connection there ? I am goin to my mech this week anyways I'll have to get him to tell me whats up with it ....He is a former Toyota Tech... Runs his own shop now.... Cheers

 

keep us posted

 

Yes. Please post what you find. I'm curious to know if I traced the right hose. I could barely see back there even in broad daylight with a flashlight.

Mike in AR