Rear heater not heating.

[Rangel]

What should I check?


Go.

2008 yukon.

 

[NathanJax]

key is in the on position...

Your turn, GO!

 

[Rangel]

Gasp!!! You fixed it!!

 

[NathanJax]

Gasp!!! You fixed it!!

:yoface:


So.........

What's it doing or not doing?
Blower motor coming on?
Can you feel air?
Is it just cold instead of warm?
Are you using the rear controls or the front controls to control the rear?

 

[Rangel]

Blows air just cool air. Heater set to 90. Controlling with rear controls, front set to aux. not sure how to control rear with front controls.

 

[NathanJax]

If the front is in aux, that means the rear will be the same as the front.

If your running the front n heat and the rear is still cool, it's probably the blend door acuator

 

[Rangel]

Any idea on location? I ripped apart the rear passenger side. All the diagrams I've see are for NBS and have the actuator sitting there. Mine is no where to be found. Figures.

My chilton doesn't even list it.

 

[GM Customer Service]

Rangel,

Hello! I am sorry to hear that you are experiencing an issue with your vehicle. I understand that you are seeking advice from your fellow forum members to resolve this issue yourself. I might not be able to give you any technical advice but I would like to look into this concern for you. Could you private message me your name, address, phone number, VIN, current mileage, and preferred dealership?

Jennifer T.
GM Customer Care

 

[GeneralNoobzor]

Your blend door actuator is dead. Time to replace it.

 

[Rangel]

Just an update, it wasn't the blend door actuator, rather the blend door itself was in a nine line bind. Why, I don't know. But I had to split the unit in half to free it up. Returned the $150 actuator, job cost $0. WIN wonder what the mechanic would have charged.

My daughter is glad to have heat now lol