Got a question, my 89 civic si, has a lil problem...when i turn the heat/air on to any setting, it only comes out of the dash panel vents...anyone know WTF to do?

 

You may need to crawl under yor dash to double check that all of the cables and stuff are still intact. There was a disconnected cable once on our Jeep and it did the same thing, the air flow was restricted to the dash vents. Just a thought, maybe try that if you havn't already.

 

Ill give it a shot sunday night...any other thougths?

 

When you are checking under the dash, check out where the levers that attach the cables to the unit itself. That was where it broke on the Jeep, so what happened was basically the little lever was no longer pulling on a cable.

 

Ok, makes sense but i also hear the door moving when i push the lever around

 

Hmmmm. Do you remember what happened when it actually failed on you? Was there any sound of broken plastic or anything?

 

hmm not really...

 

just checked to see if the cable is still connected, and it is...so what now? mode doors arent opening obviously...prolly gonna have to tear the dash apart...right?

 

Unfortunately it sounds like you may have to. So when you moved the lever, could you see them moving behind the climate control unit as well?

 

my crx does the same thing, if ya find the problem let everyone know what it was.
the only time i ever remember to fix it is when i need defrost and cant see

 

Yes i moved the climate control unit out from the mounting bracket...i could see behind it and the lever is pulling and pushing the cable...my next question is if the mode doors are vacuum operated, cable, or electric?

 

cable

 

bump for josh! get his vents working

 

Bump as I'm in the same boat. I've posted twice about this with no replies. If someone has a solution, please post! Thanks!

 

Got this far...i talked to my HVAC teacher, and he told me its cable controlled, so i pulled some **** apart and noticed that the cable was still connected to the back of the hvac panel so then the cable should then go from there up in the dash some where to the mode doors, and it prolly broke off up there is his guess, easy fix, but time taking and alot to do...Hopefully i get it done, sux like this...any more info needed! Bump

 

The thing that gets me the most on this...is i just had ac class, and i learned when the doors fail, they are designed so that to mode doors fall back to the defrost position, so no matter what atleast you can see...but this isnt the case...BUMMER

 

Bump...also this may be easier if someone has an online helms manual for an 89 civic si....its in adobe acrobat reader format, i have one for my integra, but dont remember who or how i got it...

 

Still nothing...

 

you can get to where the cable attaches to the box without pulling the dash. look under the dash behind the center console, you should see all this linkage and gears and stuff. good luck.

 

Does anyone know for sure, if the mode doors are vacuum operated or cable?