Heater blows only on passenger side. Air conditioning works fine on both. I have already paid 9.95 for expert advice and have not gotten an answer. What gives? Please send me some suggestion or return my 9.95.
Initially, suspect would be the vent flaps/covers there-directs the airflow and the air source (hot/cold). In mostinstances, it would also involve the actuators and/or the pushwires/lingkagesthat connects them. Often these falloff and leaves the flap/covers stuckin a certain position. You may need to visually inspect how these flapcovers work and see if they move when you adjust the controls.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.
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Hello, There is not a heater valve, the temperature of the heater output is controlled by directing the air flow either through or around the heater core or somewhere in between depending on what temperature you want. There are actuators on the passenger side attached to the programmer. Remove the glove box and lower closeout panel on the passenger side with key on change temp setting and they should move, the lower one is for the driver side. These actuators were a high failure item.
i've been down here too myself, and discovered that the temp control motor, located in the bottom of the glove box, which you can access by clearing all your stuff in in and opening a small door. you can adjust it manually, and see if it changes, if yes, the switch can be defective, as well as the motor, the switch is the most likely problem. but adjust it manually first.
hopefully its only a broken linkage on the heater air box. this is loscated in the cabin under the dash board in front of where a passengers feet would go.
Another possibilty may be a broken controler. these are usually available for $75.00 from the junk yard. try "carparts.com"
The heater in your car depends upon a flow of hot coolant going through the heater core in order to get hot air into the car. If the heater core is partially plugged, it will restrict the flow. If you have a head gasket that is putting exhaust into the cooling system, it will eventually get into the heater core. When this happens there is no coolant in the heater core to make the air warm. If the water pump vanes have corroded away the result will be very poor coolant circulation causing the heater to not blow hot air. If your car is equipped with a heater control valve that is not functioning properly, the coolant flow will be restricted. One or a combination of these factors is likely the culprit in your case.
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heater radiator blocked or partially blocked,drain antifreeze and save ,remove the inlet and outlet pipes for teh heater and flush in both directions repeatedly .brown rust should come out,if not a lot comes out then fit two pieces of pipe about a foot long to heater unit pipes and mix some caustic soda and pour in one pipe with a funnel till it comes up in other pipe leave for a while then flush again and you might need to repeat this two or three times