Yep, no vacuum lines in a non-AC set up.
The "Vent" controls under the steering column open the fresh air vents that you will only feel when the car is moving.
It's most likely that the post on the blend door that the temp cable connects to has broken.
That, or your heater core is clogged...
The "Vent" controls under the steering column open the fresh air vents that you will only feel when the car is moving.
It's most likely that the post on the blend door that the temp cable connects to has broken.
That, or your heater core is clogged...