Two things: the center dash vent lever should be in the "down" position to prevent cool air from entering the passenger compartment; however, if the lever on the fresh-air vent on the left end of the dash is in the "open" position (lever to the right) you will still get cool outside air coming into the car.
If changing these vent lever positions doesn't make a difference, then you have a problem with the vent flaps at the other end of the lever control cables.
Do you have an owner's manual ...it explains the various heating / venting options.
If changing these vent lever positions doesn't make a difference, then you have a problem with the vent flaps at the other end of the lever control cables.
Do you have an owner's manual ...it explains the various heating / venting options.
