Duel Control Passanger heating not blowing heat

2009 GMC ACADIA
43,500 MILES
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SEIFRIED94
  • MEMBER
  • 1 POST
I have 2009 GMC acadia with duel climate control. Today I noticed that heat was not coming from the passanger side. Heat was coming from all the other zones. The passanger side vents were just blowing cold air. What might be the problem and what is the fix?
Nov 20, 2011 at 3:58 PM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,106 POSTS
Air controller might be disconnected. This is a valve of sorts that diverts the air flow to the proper outlets.
Nov 20, 2011 at 4:06 PM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,106 POSTS
Look under/behind the dash at the AC/heater controls. Follow the cable/connector from the temperature control switch to the airbox/blower assembly. Make sure all of the cables and actuators are connected.
Nov 20, 2011 at 4:08 PM
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