Re: 2004 duramax dual climate control the driver side...
Thankfully it was the drivers side controller! I found the temp control actuator located under the dash almost on the floor. I removed the four screws that held the cover in place then followed the wires to the actuator. removed the wiring harness then the two screws. replace with new part and heat works again!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
have someone check the driver's side temperature control doors, in behind the radio. there are two push rods attached to a plastic piece. the connector on one or both of these push rods, become unattached. leaving you with cold air. once that temperature door is closed you get hot air. passenger side still mixes, but not drivers. All or none for heat on Driver's side
You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the self programming for about 6 to 7 minutes then select your temperature you want if it still does not work properly you may have a bad actuator or a bad connection at the actuator
These problems are usually caused by a faulty blend door actuator which controls the position of the air mixing door, and in vehicles with more than one air zone (passenger/driver, front/rear, etc.) there will be a door/actuator for each. These electric blend door actuators are self-calibrating - there is a feedback circuit (wiper type potentiometer) that tells your HVAC control the position of the door. It is not unusual for this potentiometer to wear causing loss of signal at various positions, which then will cause erratic movements of the door (if the circuit fails to open circuit or shorting, the door will default to fully open or closed - i.e. hot or cold air only).