about a week ago I added stop leak in the radiator against my sons advise. My Dodge Journey would blow hot air on the driver side and lukewarm air on the passenger side. Also have cold drivers side and not hot but not cold from the pass side, on my 2010 Town and Country. My car has 42000 miles. The 2013 Chrysler 200 has 14 problems reported for heat only on driver's side, cold air on passenger side. The hot coolant flows in one side of the heater core and out the other side headed back toward the engine. Even if you do not have dual-zone controls, there still may be two separate doors and motors to control the side separately. Heater blows cold on one side, hot on the other. Car air conditioning systems that blow warm on one side and cold on the other side usually have one of two problems. Cars Trucks SUV's Check Engine Light Brakes Transmissions Engines Electrical Accessories, Coolant Sensor Replaced but Radiator Fans Wont Turn on, 1993 Cutlass Supreme Dies Out and Won't Restart, A/C Vents Blow Cold on Passenger Side But Warm Drivers, Engine Noises | Knocking and Ticking | Common Causes, Engine Dies and Then Starts Right Back Up, Dodge Avenger 2.4L Crank Position Sensor Location. This is problem with the "mode door actuator". You are correct in your thinking because there is only one heater core. I am a mech and this one stumped me. My Australian 09 XT heater has been blowing cold on the drivers side (Right Side) for 12mths. This is the actuator that controls what position the air blows from. BTW, please note it is the same problem that one side of the car blows cold air (driver's side) and the other blows hot air (passengers side) thanks. I don't agree with this, as the air that comes out of the vents is enough to blow my hat off. I let it sit a good 10 minutes so that when I get in, it’s already nice and toasty. Drivers Side Blows Cold, Passenger Warm - Or Vise Versa. When I turn the heat on, the driver side blows heat but the passenger side blows cold air. Then after a little bit cold air blows on both side, esp at idle. Valve under hood is good. One of the more obvious problems would involve the blower fan not pushing any air out of the vents. Spoke with dealer and they thought it could be the heater core. Need to refer to a service manual for the door and motor locations. If your car heater is suddenly blowing out cold air instead of heat in the middle of a bitterly cold winter, you have a good reason to be frustrated. And you wait — and wait — but the heater just blows cold air. The TSB is a good one, but not the symptoms of the car. $200 service vs Toyota's $2000 quote to fix it. I am a bit tight on $ and thought it might be something simple enough to fix on my own. These motors control the door. HEATER BLOW COLDIn this video we will explain the reasons why your car heater might blow cold air. It's just cold on the one side. My daughter's car, she tells me the pax side works fine, but the driver's side blows cold air when on heat and the defroster is not working on that side either. Normally the temperature door motor is the failure. I guess I'll join the list because I have the same problem. So if one side is hot, then the heater core is fine. Driver's side blows hot air, but passenger side, just cold. Hit air only blows on passenger side of truck 1 Answer. There are two vents on the drivers side and two vents on the passenger side. After investigating the issue for about a month I have come to the realization that the computer in the Dodge Journey's is actually pretty clever if not SMART. When the truck was and the right temp , I felt no heat from top to bottom. So I went to the dealer and they inspected the problem and told me it's the heater core. ... Heater blows hot on passenger side of car but blows cold air on drivers side in a 2000 grand prix. Car air conditioning systems that blow warm on one side and cold on the other side usually have one of two problems. ... 2 issues. why not blowing hot air? Hello, I have got a heater problem with my 2008 dodge Avenger R/T. Driver's side blows hot air, but passenger side, just cold. Average repair cost is $540 at 72,150 miles. The heat from the hot coolant is what your heater normally blows throughout the inside of the car. I can see that the actuators which control/divert the air to feet, face etc work ok and i can control the flow locations. I was reading another thread on here and a member stated that he changed the whole blower unit to fix the problem. But if your car heater blows cold air and you’ve checked both heater core hoses to make sure they’re hot, you likely have a bum blend door actuator. I have a 2008 535Xi Wagon with 78K miles. Diagnose and fix blows cold one side, hot on other side In a vehicle with dual temperature controls you may encounter a situation where the vent blows cold one side, hot on other side or vice versa. On a cold and frosty morning, as you head out, there's nothing quite as comforting as the warmth and comfort of your car. Dear All, I have a new issue on my 2008 Outback base model with EJ 2.5 engine and 5MT. Perhaps your temperature gauge is … Looking for help to help my mechanic. I know one of the first things I do on cold winter mornings before heading out is starting my car and turning the heat on. My car has an automatic transmission. ... 2 issues. BTW, please note it is the same problem that one side of the car blows cold air (driver's side) and the other blows hot air (passengers side) thanks. This fall, 2013 it has happened again so I am taking it back to my mechanic to have the lines cleared again. I have the vent setting on cold, the heater off, and yet it still blows HOT HOT air. I have dual zone heating/cooling. Cold air includes passenger vents, defrost and floor. The air coming out of the passenger side is cold. You can usually diagnose and fix the problem yourself in about an hour. On my 08 chevy impala my radiator fan works on passenger but not drivee side then the ac only blows cold on passenger but not on driver side, 2007 gmc envoy cold air quit blowing on top vents but comes out below vents. That is, I can get in the car fresh in the morning with a "cold engine" and cool/cold air blows out both sides, drive 20 miles, stop the car for 20 minutes and then restart the car (without touching any climate control settings) and I get the blast of continuous HOT air (that never cools) on one side of the front vents while the other blows cool/cold air. Like high setting of heater hot. For some reason when I turn on the air conditioning in my car the driver side blows warmish air and the passenger side blows ice cold. called some buddies at the dealership I used to work at. If you suspect air in the coolant system, you have to bleed your coolant system with a unique bleeding technique. Hot air takes awhile to get into the cabin but takes a lot longer to get somewhat warm on the passenger side. What happens though when this car heater that is so valuable to us during these crazy winter months begins to blow cold air? Drivers Side Blows Cold, Passenger Warm - Or Vise Versa. I know the things that could make it blow cold, but what makes it work on one side… Why is my car heater blowing cold air? Most of today's cars and trucks have the ability to blow different air temperatures form the drivers and passenger side. If your car is blowing cold air that means that, the hot coolant is not reaching the heater … When I turned on my heat the other night in my car...it was blowing heat out of the passenger side but cold air was coming out on driver side vents. Why is My Car Heater Blowing Cold Air? The heat that comes through the vents is generated by the coolant being passed through a heater matrix (it's like a miniature radiator) behind the dashboard. The specifics will vary quite a deal from one vehicle to another, but most systems have some kind of blend door that changes how air flows or doesn’t flow, through the heater core. It’s freezing outside, and all you want is to get in your car and turn on the heat. There is no heat from passenger side vents including the passenger side center vent. Thanks for your help on this one :) Any ideas? In this short auto repair article, a master automotive technician shares his experience, derived from working on air conditioners in Florida for the last couple of decades. This air is then channeled through hoses running out of the heater assembly, and are directed towards the air vents in the car. Yahoo forma parte de Verizon Media. On the drivers side, both vents are blowing warm air. This fall, 2013 it has happened again so I am taking it back to my mechanic to have the lines cleared again. Car has about 105,000. I don't agree with this, as the air that comes out of the vents is enough to blow my hat off. Car has about 105,000. Most likely the temp door actuator as described above. Heater blows hot air from drivers side and cold air from passenger side of car on my 2012 Dodge Avenger. I live in Upstate NY. trekkiechiq on January 15, 2017: I just replaced a bad heater core … If your car is blowing cold air that means that, the hot coolant is not reaching the heater core. I’ve read that this could be an blend door actuator that needs to be replaced? ac cold drivers side warm passenger side 13 Answers hi i have a chry 300 07 ac blows cold driver side and allmost warm on passenger side fan work well was told its not vacumm its all eletric on that car .? TITLE: Heater Blows Cold Air, A/C Blows Warm Air APPLIES TO: all A/C-equipped Honda models that use a heater valve cable. I will show in this video. Depending on which side has the problem, the replacement is different for each make and model. It blows hot on the dirvers side and cold on the passenger side. Look for a loose to broken air hose for the drivers side damper motor. But if your car heater blows cold air and you’ve checked both heater core hoses to make sure they’re hot, you likely have a bum blend door actuator. JKU heater blows cold on drivers side, and hot on passenger side. 06 odyssey.Drivers side heater blowing cold air only hot on passenger side, Blend door actuator is good. A few days later on the way back home, roughly 2 hours into the trip, the heater was blowing cold air. ... My own car has started showing weaker heat on the right. when I initially turned on the heat it would blow hot air on the drivers side and it would get cold right away. Car listed above is the LTZ model. The same situation happens in the defrost mode (hot air out of the left vent, cold air out of the right vent). Dodge Nitro-Maintenance & Repair. The engine coolant is pumped through the core of the heater, and a blower blows air through the coils of the heater. I don't hear any unusual noises. Para permitir a Verizon Media y a nuestros socios procesar tus datos personales, selecciona 'Acepto' o selecciona 'Gestionar ajustes' para obtener más información y para gestionar tus opciones, entre ellas, oponerte a que los socios procesen tus datos personales para sus propios intereses legítimos. Control the side separately is supposed to keep the atmosphere warm 80 % fixed so it was %! 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