Charcoal Canister - hose connections

[Keri]

I have a 1987 Comanche. My main question is what is supposed to be connected to the bottom of the Charcoal Canister? Currently, it appears that the PO connected the A/C drain line to the bottom of the Canister and I am just beside myself as I have been searching and searching for the A/C drain and low and behold, I am fairly certain was connected to the bottom of the canister. The elbow coming out of the firewall which should be the A/C drain has been taped to another tube and routed to the bottom of the canister.

I would send a pic but it is impossible to get a picture of it.

 

Thanks in advance!

[fiatslug87]

Just a straight tube with a beveled end comes out the bottom, doesn’t go anywhere.

[Keri]

that is insane. I have literally been looking everywhere for the A/C drain valve and spent way too much time 2nd guessing myself. Based on your response, I now know 100% without a doubt that the PO connected the A/C drain to the bottom of the cannister. It even looks like it was done aftermarket with all kinds of electric tape and different sized tubes. Any idea why the PO would do this?
Without getting into the whole "I have a leak in my passenger side floorboard..." conversation, I am hoping this will fix the issue that I have where when I run the A/C, I get a flood in my passenger side floorboard.

Thanks again!!

[AnotherOldJeepGuy]

Seems logical to tack on here, my question is at least related to the same part.  I just noticed that there appears to be a loose hose, and, there appears to be a spot that it might go.  Problem is, the place it looks like it might go, doesn't appear to be an actual connection, even though it looks like it should be.  That surely sounds as clear as mud, I will try to clarify.  At the top of the evap canister there appears to be three connections.  "Purge", "Tank", "Carb Bowl".  There are hoses connected to Tank and Carb Bowl.  It looks like there should be a hose at Purge, but when I feel it with my finger, there doesn't appear to be any actually port there, what is there seems to be solid plastic.  Now the loose hose I discovered is long enough that it could connect there, and at the other end it connects to something that appears to be a mechanically controlled valve of some kind that seems to be a part of the coolant hosing.

 

Now, if this loose end doesn't go to the canister, which again it doesn't seem to be an actual canister connection because I don't find a hole in the port, then where does it go? 

 

In picture #3 I show a connection through the firewall that appears to be missing.  The hose already mentioned is not long enough to go to this spot.  I am tacking this on here because it is at least close to to the area and perhaps anyone that can answer the first question can also shed some light on the firewall connection that seems to be missing.  Like what goes there as well, and perhaps what it does to help me further search for information.

 

Thanks in advance!

[eaglescout526]

36 minutes ago, AnotherOldJeepGuy said:

Seems logical to tack on here, my question is at least related to the same part.  I just noticed that there appears to be a loose hose, and, there appears to be a spot that it might go.  Problem is, the place it looks like it might go, doesn't appear to be an actual connection, even though it looks like it should be.  That surely sounds as clear as mud, I will try to clarify.  At the top of the evap canister there appears to be three connections.  "Purge", "Tank", "Carb Bowl".  There are hoses connected to Tank and Carb Bowl.  It looks like there should be a hose at Purge, but when I feel it with my finger, there doesn't appear to be any actually port there, what is there seems to be solid plastic.  Now the loose hose I discovered is long enough that it could connect there, and at the other end it connects to something that appears to be a mechanically controlled valve of some kind that seems to be a part of the coolant hosing.

 

Now, if this loose end doesn't go to the canister, which again it doesn't seem to be an actual canister connection because I don't find a hole in the port, then where does it go? 

 

In picture #3 I show a connection through the firewall that appears to be missing.  The hose already mentioned is not long enough to go to this spot.  I am tacking this on here because it is at least close to to the area and perhaps anyone that can answer the first question can also shed some light on the firewall connection that seems to be missing.  Like what goes there as well, and perhaps what it does to help me further search for information.

 

Thanks in advance!

 

So what is circled in picture 1 is irrelevant to 87-90 Renix. 

 

Pic two and three go to each other. It is the vac line for the heater control valve which opens and closes off coolant to the heater core. It is highly recommended to get it hooked up again seeing how you have AC.

[AnotherOldJeepGuy]

OK, I will attempt to hook up the missing top connection at the firewall to the loose hose as in the new attached pic which goes to the heater control valve.  My guess is that the top firewall connection used to have a plastic tube, just like the bottom connection, that goes to the hose at the heater control, which is probably long gone.  Did I guess correct?

 

Thanks for the help!

[eaglescout526]

1 hour ago, AnotherOldJeepGuy said:

OK, I will attempt to hook up the missing top connection at the firewall to the loose hose as in the new attached pic which goes to the heater control valve.  My guess is that the top firewall connection used to have a plastic tube, just like the bottom connection, that goes to the hose at the heater control, which is probably long gone.  Did I guess correct?

 

Thanks for the help!

Correct. 

[AnotherOldJeepGuy]

OK, I hope my method is successful.  I was afraid to try and dig out what might be left of the old plastic hose, I couldn't really tell how much of it was left is any anyway.  So I hunted down a piece of hose that had in inside diameter that would slip over the connection at the firewall and with adapters got it connected to the hose loose end that went to the heater control.  I'm not 100% satisfied with the result, but with a little luck it will work.  I tried securing the hose so that it was less likely to work it's way off.  I guess time will tell.

 

Thanks again for the assist.

[eaglescout526]

50 minutes ago, AnotherOldJeepGuy said:

Thanks again for the assist.

 

No problem at all!