I believe the pipe you are referring to is the part listed as "not for sale" in the part diagram of the intake manifold, meaning it's sold as part of the manifold. You might be able to locate a used one in the salvage yards; it would have to be from a U13 Altima, though, because the went from triangular to oval intake ports when the L30 Altima came out in '98.
Ok Earlier I was being lazy and should have drawn my own circle, because I'm not 100% sure we're talking about the same part. so here's the picture again, but this time I made a red circle over the part I believe to be leaking
It's the small metal L shape pipe, that has a hose connected to it. I', not sure if the hose or metal piece is leaking, it's been a long time I've looked at it and it's in a hard spot to see, I'm going to try and stick my cell phone down there with the flash on to get a picture so we can all see it better, I also plan on buying one of those extendable mirrors so I can get a better look. If it's the hose, where can I get that hose? It looks to be a shaped hose and I believe from another post I read someone said they tried using a straight hose but they couldn't do it.
If the hole is at the metal piece, on the side where the rubber hose meats the metal, wouldn't it be possible that I take the rubber hose and slide it over the hole, further down the metal pipe, then fasten it down with one of those metal clamps you can tighten with a screw driver? Do you think the hose would be big enough or have enough extra line?
If the hole is at the top part of the L shape metal pipe, then I'll definitely have to get a new one, unless maybe there's a way to get it welded? I'm not sure what kind of metal it is made out of and I think there's certain metals you cant weld, right? So are you thinking it's connected to the intake manifold? I'm not sure if its actually connected to it, I'm hoping its not, but I could be wrong. If it's not connected to the intake manifold, can I order that metal piece separate or do I need to go to the junkyard and get one off another nissan altima within the range of 1993-1997?
I really appreciate your help, this has been an ongoing problem for months and I'm tired of constantly refilling my radiator.
Do you own a nissan altima yourself or have you just worked on the vehicle in the past? I'd love to hear about the peoples backgrounds on this site and learn as much as I can from all of you, thanks again.