954runnerlimpy

I was looking under my hood and noticed I was missing a vacuum line. I looked on a couple 3.0 motors in the local yard and they didn't even have a nipple for a hose, it was just plugged. I have no idea where this line would connect to. I looked at a couple diagrams also with no luck can anyone help me out.

95 4runner, 3.0 auto 4x4 with air (haha as if that worked).

thanks all

scope103

Nothing is connected there on a pickup. (and to answer your next question, I don't know what could be connected to that port, but others may have useful speculations.)

You can make your questions much easier to understand (and increase your chance of getting a useful response) if you run your picture through Microsoft Paint (included free with every copy of Windows) and add some arrows, boxes, comments ...

myyota

Just put a cap on it, because right now with no cap on it you have a vacuum leak.

Redeth005

After im done with work in 2 more hours ill take a picture of my motor and upload it for you. for the mean time check out the 2 vacuum diagram pix i uploaded onto my build thread(page 10) maybe it might be of some help to you.

I don't wanna say for sure but i honestly think its the vacuum line that comes from your BVSV valve. There is one vacuume line coming from the Charcoal canister on the left side of your motor(right above your passenger side fender). Then connects into a light blue/turquoise 2 input vacuum hose valve called the "BVSV" which is located behind your intake manifold about 4-5inches down and it continues from that valve to that missing vacuum hose connection that you are wondering about.

I'm almost sure thats the one it is. Take a look on my build thread on (page 10) the 2nd(bottom) picture. there is an exact picture of what im talking about to better explain to you what i mean assuming that that is the problem.

Hope this helps dude Good luck!

954runnerlimpy

i do have it capped off (took the cap off for pic) I am more concerned with the other end being open. The truck has issues running normally in the wet weather and wondering if this could be related.
Here is an edited pic of the area.

scope103

There are 5 ports. Two go to the EGR modulator, one goes to the Throttle Opener, and one goes to the Thermal Vacuum Valve (sometimes, but not very clearly, called the Bimetallic Vacuum Switching Valve) to the canister. The fifth is blocked off. On mine, it has a nice little rubber cap.

I think 954runnerlimpy is asking about the capped port. (More proof that decent pictures help a lot.)

scope103

The end inside the throttle body? If it's capped, it's capped. (And as I said, that's the way it's supposed to be.) If you mean that it's "missing" what plugs into that capped port, there is nothing that plugs into that port.

Very, very generally, trouble in wet weather is more likely an electrical/ignition problem. Vacuum doesn't know much about water, electrons care a lot.

954runnerlimpy

Okay. the other end is what i was concerned about. i guess i will continue my quest on finding the issue with running jn the rain thanks for the answer on the vacuum

ksti

Being that line is normally caped off, there wouldn't be another side that's open. As stated above if its an issue when wet its most likely a Elect or Ign problem.