Questions & Answers for: GMC Sonoma actuator heat

...heat. what can i do about it? Probably the blend door not actuating. I do not have the manual on where your door actuator is. It's usually right of center under the dash. Look under there and see if ...

...the the pipes. If this is the case, check the places where the hoses connect to the control or the

heat problem is one off two things, you may be low on coolant and its not flowing into heatercore or the actuator motor that controls the blend door is bad, the blend door is a door in the heater boxs

...heat even when its in the Max A/C position. Do you think this could be the blend door actuator? It is manual not automatic Yes - a blend door is definitely a possibility, especially if it blows heat. ...

...by hand to see if it works. If no problem found there, you will have to check for a blend door motor/actuator that controls heat/cooling attached to the heater box under the dash for proper ...