95 s-10 blzer 4x4


hey guys all my selectors work on my temperature and AC controls on the dash but i can't get the heat or cold air to come out of my vents or on my vent setting all of a sudden it was working not to long ago what causes this???

Check for good vacuum from engine to heater controls.
MT

both the heat and AC pump outta the floor and defrost but i can't get any air outta the vent setting! what causes this??

both the heat and AC pump outta the floor and defrost but i can't get any air outta the vent setting! what causes this??


As said
Check for good vacuum from engine to heater controls.
MT

Manual or auto AC controls?
Manual controls should be vacuum operated.
Check vacuum on it.

not sure exactly what u mean by manual or auto ac controls, i have a max ac,normal ac and bi level ac. and thn all the settings normal,vent,heat etc.

does this answer your question??

Manual AC controls you just push the buttons for what you want and then adjust it your self for the tempt you want.

Automatic AC controls you push the automatic button and set the temperature AND THEN IT DOES It's THING FOR YOU.

Manual ac-heater controls the vents and temperature is controlled mostly by engine vacuum.
You have to have good engine vacuum to controls and out of controls the all vent doors.

Do you have good full engine vacuum to heater controls.
Check vacuum hose and vacuum from engine to controls.
MT