Columbus had it's coldest night in half a year, and I had to get out the scraper this morning.

 

It became pretty obvious after a few minutes of driving that there was no hot air coming out the defroster ducts, and the front and side glass was not clearing up. Tried various settings on control switch and fresh air vents - nothing would divert the heat onto the glass.

 

I am not a big fan of the Sube climate control system. Much too complex, and no clear advantages, IMO. I don't know the system very well, but I have a feeling I'm gonna have to learn it before all is said and done...

 

So where do I begin? Any quick and dirty tests on these systems? My guess is it's gotta be electrical or vaccum related.

 

Any advice is appreciated, John

so the fan works, but the heat only comes out the front vents?(bi-lev)

 

there is a small skinny vac line that comes off the passenger side of the motor and runs up to the strut tower, tghat is what controls your heat selection

That vacuum line Miles mentioned has a connection at one point. That's where mine came undone. Reconnect and you should be toasty.

There's a connector by the accelerator pedal (left drive) that often comes undone.