QuestionHello Kevin, I have a 99 LHS that is blowing cold air when the heat is on. I ran the on board Diagnostics and it came up 23 actuator? is this a difficult job to repair for a semi handy person. I dont think I would be comfortable taking the whole dash out so any pointers would be greatly appreciated. Also any suggestions where to get it at the best price?
Thanks for any advice!!!
AnswerTEMPERATURE DOOR ACTUATOR
The blend-air (temperature) door actuator is an electric motor which mechanically positions the temperature door. A feedback strip in the actuator allows the computer control to know the exact position of the temperature door at all times. The blend-air door actuator is not serviceable and must be replaced if found to be defective.
The temperature door actuator is located at the bottom of the heater housing at the center tunnel Mode Door Actuator Location
REMOVAL
Open hood and disconnect the negative battery cable remote terminal from the remote battery post Negative Battery Cable Remote Terminal
Remove left and right underpanel silencer/ducts.
Remove two screws from actuator which are accessible from the right side of center stack.
Remove one screw from actuator on left side.
Pull actuator straight down from shaft and disconnect electrical connection. Upon removal, note the shaft position of the actuator, because the shaft on this motor is keyed. When installing new actuator, its shaft must be positioned in the same location.
INSTALLATION
For installation, reverse the above procedures.
