Heater blows air when the AC/heater is not on

2009 SATURN VUE HYBRID
15,000 MILES • 3.0L • 4 CYL • 2WD • AUTOMATIC
Avatar
MIKE OG
  • MEMBER
  • 1 POST
Why does my car blow heat while in drive when the air or heat is not on?
Jun 2, 2019 at 6:23 AM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Hello

It sounds like you have a re-circulation air blend door actuator that is not working. To confirm lets remove the unit to check the operation. here is a guide that will help walk you through the steps and diagrams below to how you how on your car:

https://www.2carpros.com/articles/replace-blend-door-motor

1 - Mode Actuator
2 - Air Plenum
3 - Evaporator Temperature Sensor
4 - Mode Actuator (Side View)
5 - Air Temperature Actuator
6 - Recirculation Actuator
7 - Blower Motor
8 - Blower Module
9 - X202

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
Jun 4, 2019 at 12:24 PM