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You take it to a AutoTech.
Remove the heater control valve and replace it.
It is at the dash board bottom just at the middle. You can see a plastic rectangle were the heater core is and at the right side are the pipes that goes to the coolant valve at the engine
under the throttle body. Has a green sensor attached to it. Can't miss it.
Have you checked you heater control valve or heater core if working properly.
It does not have a heater control valve.It does not have a heater control valve.
In 2012 about $40
Where is the the heater control valve??
Middle out
under the hood, on the fire wall behind the engine where the two hoses are. one of them as a valve on it.
where is the heater control valve
The heater control valve is used to shut off hot coolant from entering the core when the heater is in the off position. A heater control valve can be actuated by either a vacuum line or a cable from the vacuum heater control valve to the heater core. This hose should be warm; if not the heater control valve is stuck and needs to be replaced