Air only blows on top of dash and the floor. Can it be the motor or actuators?
The actuators or air diverters are fubar. Motor is fine.
SOURCE: 1999 cadillac Deville cold air blowing out passenger side vents
Sounds like a Blend door issue, but could be the controller switch, Test ALL modes of operation to see what works and what does not. That should narrow it down a bit. The Blend doors are flap/ doors that regulate air flow, newer vehicles are plastic - electric assemblies ...prone to failure. Any clicking or thumping noises during switching modes and on-off suggest a bad Blend door. Hope that helps...good luck
SOURCE: Dual Temperature controls inside - 2002 lincoln ls
The problem is most likely a bad dual climate control valve. This component is located on the right side near the radiator under the hood. It will have several coolant hoses hooked to it and 2 silver cylinders protruding from it. You can clamp off the heater hoses at the heater core and see if both sides cool then and this will tell you that the valve is letting coolant thru when it shouldn't be.
This will narrow it down to either the valve or the control head inside the car,or wiring in between them. The only way to narrow it down further is if you have a scan tool that could access the climate control data. Have seen several of these valves cause this concern and have only seen one control head cause it.
SOURCE: Only cold air on passenger side
I would first check and make sure that you have enough Freon in the system, on climate control dual systems only one side will put out cold air if the system is low on Freon. Eventually, both sides will put out warm/hot air if the system continues to loose Freon. As with all leaks the system should be checked and then the leak causing component replaced/repaired.
SOURCE: cold air on passenger side warm air on drivers side
Actuator motors either get a tear in the rubber or a hose is broken and not letting vacuum assist in its opening.
You can try moving the lever by hand and see if the air gets colder on the bad side.
SOURCE: Air/C, blows hot air on drivers and cold air on passenger side?
The vent actuator my need to be reset, this can be done by removing the HVAC fuse from the fuse panel for 5 min or disconnecting the battery. If the vent actuator does not correct it self, then it's most like going to have to be replace due to internal parts have broke in the actuator.
Thank you for using fixya and it's common for the vent actuators to go bad after a few years, the internal parts are made of plastic and get brittle after time.
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