So the engine has been in for a few weeks now. 93' HO with ~100k on it. With the engine, labor, and parts - new water pump, oil pump, RMS, engine mounts, alternator (I had one already laying around) it came out to exactly 2k. I'm actually very happy with the price and the work. Around here especially, that's a pretty damn solid deal. I wouldn't have saved myself all that much if I did it myself with a donor. Having no garage, that wasn't an option. Finding another cherokee would have been cheaper, but with the work I already have into it and the fact that it's a rust free Jeep with a lot of sentimental value to me made it all worth it. They also threw back on the new oil pan and Bosch type III injectors I recently put on the last motor. Thing runs great.

Have a small issue now - the air is only blowing out of the defrost vents and floor. All settings work (all speeds/ac types), though my actual AC has never worked (might be tackling that soon as well, will probably at the very least new metal lines and new comp). This all points at a vacuum leak and not the blower motor resistor.

So I was poking around at hoses and the main hose that comes off of the resovoir behind the bumper I trace back, and when it gets to around the firewall it tees (and the tee is capped, it has always been like that), goes over the engine, and then is just dangling. Not plugged into anything. For the life of me I can't see where it is supposed to plug into on the manifold or brake booster, any ideas?

If this hose isn't the issue the next thing I'll try before tearing into the dash is replacing the hoses going to the evap can since they're lookin pretty beat, but I don't think that should have anything to do with the vents. Pretty sure this loose hose is the culprit.

Here are some Pictures of the line and new motor. Is this even a line for the air control? I mean either way I'll want to plug it in where it belongs.

 

Here.

 

Nice Stabbs! Yea, OK 2G, but hey, nice is nice! My thoughts..That "Y" you mention as a "T" I think would be for vacuum to the valve on the T Case for a vac Disco on the front axle.

One large line comes right off the manifold all the way around to the vacuum reservoir down there in the front bumper. (with that Y off of it.) At the res. there is a check valve so the ball holds vacuum, even when that line has none. THEN there is a small black tube running back to operate the heater/AC flaps. (even when you have your foot in it and there is next to no manifold vacuum). It's that simple? Almost. Actually the ball has two halves, two check valves, and maybe two little black tubes coming back. Because the other 1/2 is for the cruse control. (also the large tube has a "T" down there to provide vacuum to both ends). If you don't have cruse there is likely only one line coming back, and 1/2 the ball isn't used.

Duh What I meant to say is it plugs into the intake manifold just rear and inside of the IAC.

 

I have looked at this a few times now and seriously cannot figure out this stupid problem, and my wife is the one suffering having to drive it.

I have traced down both lines coming out of the reservoir. Here are the two lines coming from the reservoir: https://i.imgur.com/fHleVLo.jpg

One is a hard line that goes into a check valve of some sort, here: https://i.imgur.com/tyyYdVI.jpg

And then into the firewall, here: https://i.imgur.com/89SgyiS.jpg

From what I can tell there are no cracks or leaks along the entire run. I disconnect it at the valve, blow into it, don't hear any air escaping either way.

The other line is the bigger rubber line that has been disconnected this whole time, which hits a capped off Y, and then ends up here: https://i.imgur.com/rE712jr.jpg

I still have no idea where this plugs into, I've looked everywhere and there's no place for it to go that I can tell.

 

Last photo:

That's the vacuum supply line for the rezzy ball.

Here's what you do.

Remove the ball from the bumper area.

Mount it upside down under the coolant bottle.

Put the manifold vacuum to the big nipple, and the other little nipple goes to the black line going through the firewall. The pinkish line at the firewall runs to the heater control valve which should be eliminated and it's line capped off.

And fasten/orientate your Putco relays properly before they get moisture in them.

 

It is suppose to go to intake vacuum, right near the IAT there. You seem to have some other rigid tube on that nipple. No Idea where that is going now, but the long line to the ball use to go there!

(the nipple for the rear CCV deal is forward of the TB)

 

Fixed it.

For whatever reason there was a plug on a nipple at the top of the manifold ahead of the main air duct. Why? I have no idea. It seems to be too long of a run for the rubber hose to make it all the way around the back of the engine to it though so maybe when they yanked the engine they said screw it and just capped it.

Pic:

https://imgur.com/kcmYQG8

(by the way there is a total lack of pictures of this location for renixes anywhere on the internet afaik, and it seems like the HO locations is under the duct down on the side/underneath the manifold?)

For now I just have it run underneath the ccv line on the vcg resting on top of the plastic clip for hoses the HO's came with. Eventually when I'm not lazy I'll get a longer run to properly tuck it along the firewall.

Whether or not that's even the proper nipple or not, seems to work just fine, the vents are blowin hard.

Still no actual AC, but it's a hell of a lot better than nothing (or just defrost vents)

We had the (stock) wheels on my wife's civic stolen a little while back and they ****ed up the corner panels when they dropped it, all that good stuff. So we finally got rims/tires on it, and I'm droppin it off at the body shop today. The longer it's away from these apartments the better. We put lockers on them, but still, keeping it away from here so it doesn't get ****in keyed or a brick through the window or something. She's happy with the XJ anyway, it's just a hot ride =/

Before and after shots: https://imgur.com/a/l2dDN

Luckily we are house hunting now. That was the last straw. We just put an offer down on a place today

Y'all know how badly I've needed a garage.

Also recently plasti-dipped the wheels, she's lookin pretty good! https://i.imgur.com/QwLtM4X.jpg

Just did the rear shocks and only snapped 3 out of 4 bolts too which was pretty good. When I have a garage it's onto the Upcountry leafs and springs!

 

Supper! Btw there is a link to a nice set of Renix engine pics in my sig...