This is actually a common problem that doesn’t really have a simple answer. This will not only cause cool air to blow through your vents, but it will prevent your vehicle from warming up the cabin. This part is called the blend door actuator inside your car, and it is controlling a flap that is redirecting hot or cold air inside of your car. and the vent is stuck on the front , i cant get it to change to any other vent idk if its a motor, bad doors,. I don’t know what’s wrong with it. Do you have a Honda that blows warm air out of the left side vents and cold air out of the right side vents when you are operating your air conditioning? Car Heater Blowing Cold Due to Cooling System Issue I have a 2011 Dodge Avenger SXT that blows cold air on the passager side vents and defrost vent. Is the Pilot Light lit? Step 2 - Most cars are equipped with a cabin air filter or hepa filter. A Leak in the A/C System. Sometimes my middle two ac vents is not blowing out any air at all ( but the sides somehow works very little ). Clogged air filters could be causing cold air to blow out of your vents. Chances are that if you’re getting a blast of cold air you don’t want when you turn on the vehicle’s heater or defroster, it’s a sign of the same problem: Something has … These filters are designed to clean the air before it exits the air vent. The sound you hear is the reversing valve switching your unit over to cooling mode. The true test of the quality of an automobile shouldn’t be how fast or smooth it drives, how safe it is, or how sleek it looks. It’s also the reason that a plugged heater core, stuck thermostat, or air in the cooling system can all cause a car’s heater to blow cold. Before replacing Heater Control Unit, it would only blow hot air from front vents- With this replacement it will now change from cold to hot and the air flow pressure does change from the front vents when changing the setting dial but there is still no air at all to feet and defrost. If gas supply is interrupted for any reason, the gas furnace pilot light will go out. If this actuator is faulty, your car might blow hot air out from the vents even if you require cold air… At BMW of Atlantic City, we hope this article answered your question: “Why is my heater blowing cold air?” If you’re in need of heater repairs to keep you and your passengers comfortable this winter, visit our service center today! My Auto AC is Blowing Cold Air One Day and Warm Air the Next? Repairs for this problem = A/C compressor, orifice tube and drier replaced about 1 year ago. A/C is controls are set to max air and max cold on the temp control. While it keeps your engine cool, it also hovers above your heater’s core and blows all that warm air right into your vents, which in turn heats your cabin. A cold winter day is no time to find out your car heater isn’t working. Dysfunctional Thermostat. Inside your vehicle’s vent system, there are small doors that open and close to change the flow of air running through the system. Heater working but only blows out front vents. Pre-heating your vehicle before heading out on your commute is a common practice among many drivers, especially in the Plainfield, Indianapolis, Fishers, and Bloomington areas. When it does happen, you're left with a miserably underpowered heat or AC system. At Andy Mohr Collision Center, we’re here to help drivers in Plainfield, Indianapolis, Fishers, and Bloomington. To see if this is the issue, add some more coolant under the hood. The engine coolant is pumped through the core of the heater, and a blower blows air through the coils of the heater. 6037 E Black Horse Pike • Egg Harbor Township, NJ 08234, - Troubleshooting your Car Heater It uses a component called the heater core, which is similar to a radiator. Here are the most common car heater problems that drivers encounter: Coolant is essentially to helping you warm up your car, among many other important functions. When you’re riding the streets of Atlantic City, Egg Harbor, and Vineland, one of the most annoying questions you might need to ask yourself is: “Why is my car heater blowing cold air?” Whether you love the cold weather or want nothing to do with it, one thing is for certain—a working heater makes winter driving much more pleasant. Click here to Schedule Service. The temperature actuator needs to be replaced and the linkage checked. Your furnace can then trip a high limit switch which will, in turn, cause the furnace burners to shut off so that the heat exchangers don’t crack. Drivers rely heavily on their car heater in the winter, not only to warm up the cabin of their vehicle, but to help remove some of the frost on the windows so they can see before hitting the road. No heat to feet or defrost. I had to pay the dodge dealership $1400. A small refrigerant leak is the most common reason a car’s A/C gradually … Despite its chilly name, coolant actually works hard to heat up your vehicle during colder months. This system also can circulate some of that heated coolant through the heater core in the dashboard, sending warm air into the car once you turn on the … This setup can look a little bit different, but the main function is the same. Bill Allen, owner of Mechanics Plus in Casselberry, Florida, says that air flows through a heater core and an evaporator core before exiting the vents. ... Heater blows cold on one side, hot on the other. You might even find that this opens up the flow. The thermostat in your engine is essentially a valve that will open and close depending upon the temperature of the coolant. Schedule your service today! Is there an electical vent shutter that could be letting too much cold air from outside mix with the heated air on that side? If there's a smell to the steam, or if it’s actually smoke, you have a larger problem on your hands. Looking to service your vehicle? One of the most popular problems car heaters experience is when the thermostat is not working as it should. If your car’s air conditioner isn’t working properly and is blowing hot air then one of these systems isn’t doing its job properly. If you’ve been involved in a collision or other mishap on the road, contact Andy Mohr Collision Center. You also might smell a sweet scent inside your car. There are a few different factors that could be causing the confusion with the airflow. If you notice that your thermostat gauge stays on the “C” even after the … Other symptoms of this problem include: If these are happening, reach out to your certified service center to diagnose the issue. This element also defrosts your windows and plays an important part in keeping your vehicle toasty. Because it illustrates just one of many reasons why a heater might blow cold air, and an air conditioner might blow hot air. Even if you do not have dual-zone controls, there still may be two separate doors and motors to control the side separately. Your car heater gets its function from the coolant. or what The coolant heats up the coils, which in turn warms up the air. or select -, Your coolant is being used quicker than usual. Personally, I think these are the stupidest thing ever invented, but whatever. Due to your heater core being the high point in your cooling system, air can actually flow through and get stuck. Refrigerant level low. Does your car have a cabin filter? This air is then channeled through hoses running out of the heater assembly, and are directed towards the air vents in the car. Despite its chilly name, coolant actually works hard to heat up your vehicle during … The fix is that you’ll need to have the air bubbles flushed out. If your vehicle is lacking the proper amount of coolant, that hot air isn’t going to make it inside your car. Visit your dealership’s maintenance center and they can either fix or replace these controls for you. A refrigerant is a fluid that is transformed from liquid to gas and vice versa in a … Frost on the outside coil is condensation that forms up on the coil in the form of frost. This can easily be fixed by flushing the heater core and opening up its valves. When you notice that there’s cool air coming from your car heater, and your vehicle can’t seem to get warm enough, you’ll want to seek out the help of our technicians at Andy Mohr Collision Center. Why tell this story? This blog post will give you a good idea of what might be causing the problem with your car heater. Out of Coolant. There are a few different factors that could be causing the confusion with the airflow. If there is cool air blowing from your car heater, you’ll want to take care of it as soon as possible so you can reduce the amount of chilly commutes. Something is wrong when that does not happen. However, once the coolant reaches its optimal temperature, the thermostat should open and begin providing warm air for the cabin. At Andy Mohr Collision Center, we’ve helped countless drivers with their automotive issues, so today we’re going to tackle this mystery that’s keeping your car cold. This is actually a common problem that doesn’t really have a simple answer. A dirty air filter can block airflow over your furnace’s heat exchanger, which can cause it to overheat. The heater vents on the passenger side are blowing out cold air while the vents on the drivers side are blowing out hot air. to fix the problem on my car. 7 Reasons Your Heater Blows Cold Air/AC Blows Hot Air. Ask Your Own Toyota Question is the blend door on the drivers side of the dash Schedule an appointment and be in a warm car in no time. When there’s cold air coming through your vents, it may be because your vehicle’s heater controllers are faulty. In cold weather the coolant is not needed to cool the engine, therefore it needs to circulate around the engine for a few minutes in order for the heater to feel warm. When that happens, the HVAC system can be stuck on blows cold air or blows hot air. This is actually a pretty common problem that driver’s face. Our technicians are ASE-certified and have years of experience, so you can rest assured that your car will be in capable hands. A c ar heater blowing cold air could be a … That heated coolant then runs through the radiator, where the heat dissipates. Weak Air Blowing from Car Vents ... Oh, I thought of one more thing that might help. There’s nothing like getting into a warm car during the brisk winter. In a dual zone system, you wind up with a blows cold one side, hot on other side condition. Over time and much usage, it’s common that these buttons and dials become clogged and broken, making it hard for them to send a message to heat your car. If the thermostat won’t close, the coolant won’t be able to warm up enough, resulting in cool air blowing from your vents when you have it set on heat. This makes it unable to tell that the engine is warm enough to bring that coolant in, resulting in cold air blowing out. Coolant (which is a mix of water and antifreeze) is what circulates around the car’s engine. Getting to the root of the problem can take some time and effort, but we have simplified the process by providing you with the most common A/C problems along with how to resolve these problems once they’re discovered. If its always only cold on drivers side then you need to look into the drivers temperature blend door behind the dash. There are any number of reasons cold air or no air is coming through the vents. The heater core had to be replaced with a new one, plus new coolant replaced. You may have noticed a loud sound right before cold air blows out through the vents in your home. The problem I have is that when you turn the ac on the cool air only comes out the 2 vents on the passenger side. If the car does get up to temperature as it should, there’s probably something else that has gone bad. These devices use desiccant (like those little packets you find in a … The temperature blend door on the left side is not switching from cold to warm. The heating system in your car is supposed to keep the atmosphere warm. ), so the temperature actuators generally fail first. Until the engine warms up, there’s no heat for the heater core to extract. It sounds like you may have a faulty blend door actuator. Most of today's cars and trucks have the ability to blow different air temperatures form the drivers and passenger side. The liquid then flows through the radiator and the air absorbs the heat and uses a fan to push it through your vents. … The liquid then flows through the radiator and the air absorbs the heat and uses a fan to push it through your vents. What you’ll need to do is take your vehicle in for service and an inspection so technicians can determine why your car heater is blowing cold air and preventing your vehicle from warming up. However, this is a relatively easy repair that the certified technicians at your dealership can quickly make. Have a local expert inspect the cooling system to verify these issues and move forward with the proper repairs. In the event that you end up in a car accident, we want you to know exactly what to do in the crucial moments following. Most often, coolant is restricted from flowing due to a blockage in your heater core. Drivers Side Blows Cold, Passenger Warm - Or Vise Versa. If this filter becomes clogged due to lack maintenance it will stop or slow the flow of air exiting the vents. That means a trickle out of your vents instead of the rush you asked for. However, some drivers experience issues like their car heater blowing cold air. Luckily enough, this is an easy fix. These doors are operated by small actuator motors that are activated when you turn the knob or switch to make a … Drivers changed air temperature far more often than they change the mode (defrost, floor heat, dash vents, etc. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. If the heating and temperature gauges are misreading and giving you the wrong degrees inside of your vehicle, it’s because your thermostat is broken. We’d be happy to take a look and help you get your car warm for the winter. While the coolant is being pumped through your engine to help keep it from overheating, the engine warms the coolant to almost 200o. The cooling system circulates a coolant through the engine that absorbs heat. If there is enough coolant in your vehicle, the heater core may be the culprit of cold air blowing through your vents. If its jumping side to side (sometimes cold on drivers but sometimes cold on passenger) Then you need to replace the HVAC control module. my 2008 ford taurus is doing this, but its winter and im not trying to use the AC , im trying to use the heater , the driver side is warm but the passanger and the vent in the back seat blow cold air. When the thermostat fails to open, it will restrict the air flow. While the engine is warming up, the thermostat stays closed. Hi, I have a Honda civic 2011. Posted May 22nd, 2017 by admin & filed under Blog , Vehicle Maintenance . Follow the steps we provide for each one, and you’ll be set for some warmer winter driving. The reason why I said sometimes is because it stopped working for a day then it would work again the following day. Once you've saved some vehicles, you can view them here at any time. AC Accumulator/Receiver Drier. Remove that, gut it and then put it back in just to keep the area sealed. 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