It didn't really help, the hoses get hot OK and engine temperature is normal, but the heater is still only blowing cold-I don't think it's worth buying that kit for a one off job-do you have any futher suggestions? If your car … HEATER BLOW COLDIn this video we will explain the reasons why your car heater might blow cold air. This is 2004 Jeep Liberty. My Vauxhall Astra H Mk5 2006 is only blowing luke warm air The air does get 'warmer' after driving over 20mins, but thats at the LOWEST fan speed. How Does Your Car Heater Work? Show Less. I only drive my car 1.75 miles to work and that much back home in the afternoons. This can cause the air to feel only lukewarm. I am not sure that it may be a stuck thermostat. My heater will only blow cold air. There are several components on the front suspension that can cause this violent shaking concern. Answered in 13 hours by: 5/8/2013. A new door actuator costs less than $100. even when i turn the temperature to the coolest setting, the air remains very hot. 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. If you've ever turned your car heater on and only had it blow cold air even after time goes by, you may be wondering why. Hot air only flows to vents, not to defrost? My car has 90000 miles. Thank you for writing in. If your car is only blowing cold air, even when the engine is warm, there are a few potential causes. If your temperature gauge reads normally, this is unlikely. Air conditioning not working at all after fan resistor replaced . If it’s where it’s supposed to be, proceed to step 2. A well-functioning car air conditioning system can make your ride more comfortable, especially during summer time. One of the first things you will notice is warm air coming from your car AC vents. Has plenty of coolant. Reason why my car heater is blowing cold air and overheating the engine. The electronic brake control module (EBCM) receives input from the wheel speed sensors, as well as other vehicle sensors. If it is the check engine light should be on. Recently noticed my wifes car was failing to get warm air into the cabin and her car had no temp gauge as she has satnav. The radiator uses the outside air and a fan to cool the fluid in the system, while the heater core uses the heat from the coolant and a fan to warm the air inside the car. Plastic ductwork around the fan are all present and intact. A heater core is made up of brass or aluminum tubing that carries the hot coolant in and out, along with fans that disperse the heat released by the coolant. Check that first. Hi there - this sounds like a possible thermostat (no allowing proper warm-up to operating temperature), or an inadequate water flow (water pump or clogged radiator) problem. Anyone know why the heater only works when the car is moving? my car heaters are blowing luke warm, i have checked pressure, thermostat and heater core but no change. Also it seems that when I press the gas pedal the air gets a little warmer but then cools down a bit. Monitoring your coolant level, turning the A/C off in very hot weather, and regular inspections will help you avoid having an overheating car. owners, Our mechanics make house calls in over 2,000 cities, Fleet Maintenance with certified mobile mechanics, The statements expressed above are only for informational purposes and should be independently verified. © How Does Your Car Heater Work? Car heater blowing cold air? The ventilation fans blow air over the matrix and into the car. This is a very common problem with Jeeps. This heater core then passes the hot air it generates into the vehicle with a blower fan. It does have the same blow strength as always is simply the heat and also the cooling temperatures that are the problem and it just started. my Ford ka's heater is only blowing very hot air out. melinda on December 04, 2015: My truck is a 2011 chevy colordo and the heat or a/c will work. technicians, Trusted mechanics, rated by thousands of happy car This causes these to almost fuse together. If the heater is broken because it's not blowing any air, it's likely due to a faulty blower motor or electrical connection. All I have to do to get hot air again is give it a little gas, say 200 more rpms, and the heater immediately responds with warmer air, hot air if I maintain 1000 rpms. Heater: High temperature only on high speed. Fixing this can be as simple as a fluid flush. My jeep has been getting warm. Here are a few things that you can check yourself that are likely the issue. technicians, Trusted mechanics, rated by thousands of happy car I have a 2002 daewoo lanos SE. When your car does not warm up with the heater on, the thermostat may be stuck or the coolant may be low. November 04, 2017 . The lack of heater function could have 5 causes: the engine is not getting up to correct temperature (center of the gauge) due to a malfunctioning thermostat, the heater control valve is not letting enough hot coolant into the heater core, there is a restriction in the heater system that is preventing adequate hot coolant flow through the heater core, the heater fan is not working to transfer heat from the heater core to warm air for the passenger compartment, or the air blend doors inside the heater are not working properly to route warm air to the desired vents. Your car may be old and it may be the POS that you call it everyday but you can smile a little because your car’s problem can be fixed right at home. Ask Your Own Car Question . A fan blows over your heater core and directs warm air into the cabin. Learn the possible causes to get your car back to being nice and toasty. Checked using the obd socket and found it was only running at 42c and not the 93c it should. It will not blow and the blower is good the heater … The ABS and traction control are part of the same system. Get shopping advice from experts, friends and the community! Radiator fluid runs through the engine and becomes hot. The condenser is the first component that is cooling the gas and as an effect this one takes liquid form. I am a professional here at Just … I believe it's stuck in the open position because it never overheats. To diagnose this I would use a temperature gun to check the temperature of the hoses. Many different things can go wrong here causing the whole system to work poorly or not at all. The issue sounds like it is related to the transmission, and it may be electrical or mechanical. You can usually diagnose and fix the problem yourself in about an hour. If the heater control valve is the culprit, the air coming into your vehicle won’t feel warm. Blowing cold! Leo on December 09, 2016: Hi! i have a 2002 honda civic 1.7 liter when car warms up we turn the heater on and it blows warm air and then just minutes later it will go cold and a short time later it will get warm again. Replaced the heater matirx which was clogged up and the car gets warm way before it hits 90 now. It then runs through piping to your cabin, where a mini radiator (or heater core) holds hot coolant. I suggest starting by checking your transmission fluid level: Start your vehicle, let it warm up, and with a rag, pull up the transmission dipstick tube... Hello. 2) The heater core valve (heater … Thanks for contacting us today. © Try holding the accelerator pedal to the floor and cranking the engine. I usually start by checking the coolant level. F. flamingelephant Golden … The air temperature coming through the vents has more to do with where the air is coming from. On cold days, a car that isn’t blowing warm air won’t be pleasant to drive, plus the situation places the driver and their passengers at risk if the windshield fogs up or ices over. 3. i replaced thermostat ... HEAT BLOWSCOLD AIR WHEN IDLING ONLY … Usually when the key won't turn and the steering wheel is locked, the issue is with the ignition cylinder (where the key is inserted). My car heater not blowing warm air aircon works fine. As soon as I stop at a red light, or am idling for any length of time the air coming out of the vents begins to lose temperature until it blows cool air. Please see our. I am having the same problem with my ford focus2010. The coolant supply is blocked If the heater has a tap for supplying coolant to the radiator, then this is closed or jammed because of rust. Joined ... 2016. I only drive my car 1.75 miles to work and that much back home in the afternoons. Satisfied Customers: 40,261. The heater blows luke warm air. My car has 130000 miles. So why is my car blowing cold air and overheating the engine? If the engine is already at operating temperature, this should happen immediately. I bought a 2001 Wrangler in the fall and have been absolutely loving it so far, but problem is that the heat only gets about lukewarm instead of roasting me over (like I've heard other people say how it should be). A friend of ours bought a new house recently. It blows warm air when RPM's get around 2K or higher. The heater core is clogged from debris in the cooling system. 1997 Dodge Ram 1500. Coolant level being … read more Hyundai Verna (Accent) handbrake light is on everytime. I had a new exhaust last week, other than that nothing else has been changed with my car. So, until your engine heats up, you won’t have warm air blowing into the interior of your car. With the car COLD.. check the coolant reservoir. 1015 East I-65 Service Rd S, Mobile, AL 36606. If your car is not blowing … If it’s where it’s supposed to be, proceed to step 2. The heater will not blow hot air. ...thermostat only blocks coolant going to the radiator, and the heater core, ...Missing: 300m ‎luke Question type: Maintenance & Repair. document.write(new Date().getFullYear()) This can make the air coming out of the vents seem lukewarm. If the holdup is by the heater core, then that’s one reason why hot air isn’t blowing. A fan blows over your heater core and directs warm air into the cabin. However, if your engine is cold, it will take longer and if the weather... https://www.yourmechanic.com/services/heater-is-not-working-inspection, A Buyer’s Guide to the 2012 Jeep Wrangler, Symptoms of a Bad or Failing Heater Blower Motor, How Long Should It Take a Heater to Warm Up in Cold Weather. Made with ♥ in Silicon Valley. Sales . 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. The heater core may also leak coolant. Heater cycles between hot and cold, overheating. If If you’ve always loved driving performance cars but you don't know how you’ll fit a baby seat in a Mustang or a Camaro, the 2012 Dodge Charger could be the car for you. The problem is caused by the main computer connection to the transmission control module not being activated when first started. I've made sure the coolant (50/50 mix) is filled to the line. I could also use this to see if there is a clog in the heat core, as that is common also. While... Hi Kent. 1. A bend door can malfunction for a number of reasons. My car has an automatic transmission. Its cold outside so its cooling off when the fan turns on. The lukewarm air coming out of your furnace can also be the result of leaky air ducts. I have a 2005 Toyota Tacoma 4.0L Double Cab. While you may be getting hot coolant/antifreeze into the heater core, the heater fan, the part that actually blows the heat into the cabin, can break or suffer an electrical short. Thanks for contacting us today. That means I don't feel any heat during my short commute to and from work. My heater has just stopped working in my car, only blows cold air, needless to say warm is needed for the frosty weather, especially condensation inside the windscreen which has frozen over. My car has 160000 miles. Hi there. Heater blowing cool to Luke warm air. Favorite Answer. ... just fine but appears to blow cool air when I was stopped at a stoplight. It is quite hot on the passneger side (that is to say most people would not want it to be blowing directly on them for too long) in the middle console the passenger vent is noticably warmer than the drivers center vent. I have checked the coolant level and is normal. Vents stone cold. there are times when the car is at a idle it will blow cold and when you rev it up it will get warm … YourMechanic All rights reserved. If you’re stuck in traffic one hot day and your air conditioning is not working, it can be a hellish experience. However I am a bit unsure about that. The fans work fine in the car, the air is blowing as it should according to the level that I have it set on. When the coolant cools, it goes back to your engine and the … 4. I am not sure that it may be a stuck thermostat. heater blows cold air idle chrysler 300 Questions & Answers ... www.fixya.com > Forum > Tags Find solutions to your heater blows cold air idle chrysler 300 question. This valve opens to allow the water to flow into the heater core. I replaced the heater core and it didn't make any difference. Peter . If anyone has any advice on what do do I would be grateful. This might be an easy and inexpensive fix of the AC blowing warm air in the car. Try turning the key on without starting the engine and see if the Check engine light comes on. The transmission in your Equinox (the 4L60E) is common - I replaced one recently. 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 heater. A refrigerant is a special kind of gas (but compressed to liquid) that gives the unit its cooling ability. This can be dangerous depending on how the coolant flows through the motor. A well-functioning car air conditioning system can make your ride more comfortable, especially during summer time. In car heaters there is not an electric element. Regardless of however long I drive if I switched the speed any higher/highest all I get is luke warm/cold air. One of the first things you will notice is warm air coming from your car AC vents. Broken condenser . A partially closed door will blow mildly warm air. Other signs of a faulty heater core include a sweet-smelling scent in your car, windows that become particularly fogged-up, and puddles under the dashboard or on the passenger-side floorboard. If you’re stuck in traffic one hot day and your air conditioning is not working, it can be a hellish experience. My heater has only been working when the vehicle is moving and its not very warm. The front air vent and fotwell airvents blow warm/hot air when I put the A/C on. The boot has to be replaced. The only way I can get the inside of the car cool is to press the central face button and tak … read more If your car AC is blowing hot air, it is very likely that the refrigerant in the unit is low. These models have timing chains that tend to stretch as they wear and cause check engine lights, poor... Hi Ronelle. Show More. When I turn the temperature knob to the cold side the air gets colder and when I turn the knob back to the hot side the air goes back to being luke warm. As it idles the heater blows out cold air when I accelerate it stays warm as long as its being accelerated. Heater cores are typically situated directly in the back of dashboards. There is an open technical service bulletin (TSB) for this issue. My car is over heating and heater blowing cold air changed thermostat not leaking any fluids no fog or wet floor it only over heated once then i parked it could this still cause sirious damage. Heater temp on high only bows luke warm air after driving. I have a 1997 e39 tourer. First time experiencing this. Made with ♥ in Silicon Valley. The car, from the vents only expels heated air on the right side of the vehicle. UK Auto Mechanic: Davie, UK Car Mechanic replied 11 years ago. What are the causes of a car heater blowing cold air? Until the engine warms up, there’s no heat for the heater core to extract. I believe this is TSB reference #23. Hi All-It's 25 degrees in the morning and when I get in my car to warm it up for 5-10mins the heat still blows luke warm air. I had a new exhaust last week, other than that nothing else has been changed with my car. It just blows warm air if drive for more than 15 minutes at a time. Verified. It then runs through piping to your cabin, where a mini radiator (or heater core) holds hot coolant. I had exactly this in my wife's 2013 Leon (2.0 diesel 150ps). there are times when the car is at a idle it will blow cold and when you rev it up it will get warm again. A heater core is responsible for a vehicle’s defrosting and heating actions. When he turned on the heater, the outdoor unit … Inspect and verify that there is no plastic bag/trash on front of condenser or up between the radiator and condenser. This is the reason that it takes a while for heaters to start blowing warm air. For the cold engine to warm up quickly, it is fitted with a thermostat. You should have a certified mechanic, like one from YourMechanic, check it out to see [why the heater is not getting hot] https://www.yourmechanic.com/services/heater-is-not-working-inspection, Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing. why is my car only blowing hot air? This can be a very difficult repair due to the fact that the transmission is aluminum and the bolt is steel. The lack of heater function could have 5 causes: the engine is not getting up to correct temperature (center of the gauge) due to a malfunctioning thermostat, the heater control valve is not letting enough hot coolant into the heater core, there is a restriction in the heater system that is preventing adequate hot coolant flow … First check the coolant level engine cold checking both the radiator (should be right to the top) and the expansion tank ( should be at or near … even when i turn the temperature to the coolest setting, the air remains very hot. If it's not … If I stop at a light it gets cold again. The only way to stop water from entering the air pump is to not... With With some subtle updates, improvements, and increases in size, the 2012 Jeep Wrangler maintains the model’s familiar and rugged look and feel. Radiator fluid runs through the engine and becomes hot. The only way to identify the sensors is through the factory wiring diagram and that is way too detailed to reproduce here. In this section, we identify the main causes of a heating system blowing cold air and what you can do about it. 1 decade ago. My car has an automatic transmission. First step is diagnosing the root cause of the lack of heat.. Here’s some easy stuff for you to check. WHY MY CAR HEATER DOES NOT BLOW HOT WARM AIR. The thermostat is set to “on” rather than “auto” When your thermostat is set to “on”, the fan in your heating and air conditioning system will run constantly—even when your furnace isn’t actually heating. The temperature at full operation holds steady at 200 so the engine is maintaining a perfect temp. ... blow warmair for a few mins then back to luke warm. Asked by jsstoddard in Logan, UT on . Auto Mechanic: Pete, Technician replied 7 years ago. 4. First step is diagnosing the root cause of the lack of heat.. Here’s some easy stuff for you to check. krazybob613. If the coolant level is fine, there are only three possibilities: 1) your thermostat is closed and not allowing the warm/hot water to circulate. Lv 7. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive Parts . Unfortunately, internal engine rebuild service is not one our mobile mechanics offer. If your car's heater doesn't work, only works on certain speeds, or only cold air comes out, you may need to replace the heater blower motor. It could be due to a detached vacuum line, a breach in a mechanical linkage, or a bad switch. I believe it's stuck in the open position because it never overheats. Here are some reasons this could be happening. Here’s how. Here’s What It Could Mean 7 Possible Reasons Your Home Heater/Furnace Is Blowing Cold Air . For your vehicle’s heating system to work efficiently, and help prevent coolant leaks and engine mechanical problems, flushing the … You should also consider whether the fan clutch an OEM... A no start diagnostic would reveal the cause. 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. When his inspector looked at his HVAC system (a heat pump, meaning it both heats and cools the house), a few big problems immediately made themselves known. why is my car only blowing hot air? The coolant return heater hose should be slightly cooler than the coolant supply heater hose. These instructions will help you diagnose and fix a car heating system that only blows cold air. If the coolant level is fine then you may have an issue with the thermostat being stuck in the open position. The amount of hot air and which direction it blows are controlled by the buttons and switches on your dash, which direct the heater valves and the car’s … The temp stays normal in … Changed thermostat and it gets hot and toasty now. While it has the room and... https://www.yourmechanic.com/services/heater-is-not-working-inspection, A Buyer’s Guide to the 2012 Dodge Charger, Ignition Cable (Spark plug wires) Replacement. owners, Our mechanics make house calls in over 2,000 cities, Fleet Maintenance with certified mobile mechanics, The statements expressed above are only for informational purposes and should be independently verified. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical 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. 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. Therefore it's blowing mildly cold air for the first 10 mins preventing a fast window defrost. More specifically, it may be related to the torque converter. My temp has been running around at about 185-195 … Coolant (which is a mix of water and antifreeze) is what circulates around the car’s engine. 9 Answers . While there is a wide range of causes for a heating engine to go bad, knowing that the system is blowing cold air shortens the list of expected causes. Air ducts are leaking. It doesn’t matter the setting (low-med-high) or whether I have set to defrost or floor or both. Please see our. Report; Follow; Asked by GuruFLLC May 15, 2017 at 05:28 AM. It blows cold air when at a stop light or at low speeds. my Ford ka's heater is only blowing very hot air out. Experience: 17 years automotive training and experience. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical Until the engine warms up, there’s no heat for the heater core to extract. i tried to use the air conditioning but the same thing happened, only hot air. If anyone has any advice on what do … Simple fix, so worth thinking about if you find your car running cooler than it should. While driving my car interior doesn't heat up very hot. Hello - most likely the speedometer sensor has failed, or the wiring to it has become disconnected. The heating system is using this coolant that goes around the engine to provide warmth to you, which is why it sometimes takes a few minutes for the heat … Thanks in advance for any help provided. Range rover vogue 4.4 V8, 2004 Heater fault! Any ideas? guides, Check cars for recalls, common issues & maintenance Your mention of the dealer putting in a cheap seal make me wonder if you had work done previously to the vehicle. 4 Answers. The coolant then heats the air and then warms up the interior of the vehicle. ... My temp gauge would also be pegged high when at idle / low RPM. Home Heater Blowing Cold Air? This is the reason that it takes a while for heaters to start blowing warm air. The air pump sucks in outside air in the lower front fender area and the car may have sucked in water while the pump was running. 1. i had a toyota sequoia sr5 2004 blowing cold air instead of heat i already change the thermostat flush the heater core but still blowing cold air the back has hot air what's the problem with it? This is a guide about car heater blowing cold air. There are a few things you can do to... Hello. It does take some time for the coolant to get hot enough to blow hot inside of the vehicle. If the heater isn't blowing any air… Share this conversation. Nissan of Mobile. The fix: … 1. Taping the boot is not a proper repair, nor will it correct the situation. There could be several other causes too. Answer Save. Low coolant will cause this. Minimum Air Temperature at Floor Outlet 52.2° C (126° F) 56.1° C (133° F) 59.4° C (139° F) 62.2° C (144° F) If the floor outlet air temperature is too low, Both of the heater hoses should be hot to the touch. There are a few possible reasons why this would happen, but in most cases, it's due to a security system glitch that activates after the recently programmed key connects to the ECU. Category: Car. I have replaced the thermostat and made sure the heater hoses are allowing the coolant to pass. YourMechanic All rights reserved. How to Fix It When Your Car Heater Isn't Working . Is your furnace only blowing lukewarm air rather than hot air? CALL. the ventilators were very hot and when i turned them around to close them, they were … When the coolant cools, it goes back to your engine and the whole process starts over. When heating my car up in the mornings the heater doesn't get to it's full warmth until I start driving. RedditFeb 12, 2014 - Heater blows cool air when stopped and warm air while driving 2008 Kia Spectra (self. 6. While driving my car interior doesn't heat up very hot. When sitting idle, only cold air blows out but once I get going, it gets warm. Car only throws heat out on driver side and cool air on passenger side in summer a/c works very little Hello, thank you for writing in. 0. So, when you face the trouble of a car heater blowing cold air, examine either … The torn boot is allowing unmetered air... Has anyone suggested that the car could be misfiring? Faulty heater cores and low or contaminated coolant levels often come hand in hand, and both issues may lead to your engine overheating and your heater not blowing hot air. If debris has caused a clog in the heater core, it will need to be … Air in the cooling system impedes the circulation of coolant in the system, and as a result, the heater blows hot air only when driving, and cold air at idle. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive A/C works just fine.Plenty of cold air from it. It is a very important process because a lot of temperature is dissipated here. With the car COLD.. check the coolant reservoir. It just blows warm air if drive for more than 15 minutes at a time. My car heater not blowing hot air only cold , 1996 Toyota rav 4. These instructions will help you diagnose and fix a car heating system that only blows cold air. I have the setting on 80 degrees both on passenger and driver side, but regardless it takes literally 50 mins to blow enough somewhat warm air to get the car comfortable in the winter. My heater has just stopped working in my car, only blows cold air, needless to say warm is needed for the frosty weather, especially condensation inside the windscreen which has frozen over. All you need is a shop manual, a 1/4-in.-drive socket set and screwdrivers. Hello. I had my car serviced recently and the mechanic seems to think I need a complete new heater. Air lock drained, new cabin filter and thermostat all by garage. i tried to use the air conditioning but the same thing happened, only hot air. Yes, a torn throttle body hose will definitely cause your concerns. (A clogged heater core can prevent hot air from blowing without causing other problems.) I would recommend a heater system inspection](https://www.yourmechanic.com/services/heater-is-not-working-inspection) by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs. It's also possible that the speedometer sensor drive gear has failed (small plastic gear), or the instrument panel speedo gauge... Hi Terri. Thanks for writing in tonight. Pete, Technician. Get shopping advice from experts, friends and the community! Service . 1. Registered. Jenna on December 08, 2016: My heater only works when I'm … What could cause it to not blow hot air? Relevance. 2005 Montana heater blowing warm air only. Car Heater Stopped Working…Kind of. i have a 2002 honda civic 1.7 liter when car warms up we turn the heater on and it blows warm air and then just minutes later it will go cold and a short time later it will get warm again. Is blowing cold air when at idle / low RPM the transmission is aluminum and the community get,... The root cause of the dealer putting in a mechanical linkage, or a bad switch car AC.! Defrosting and heating actions stuck or the coolant level is fine then you may have issue! A lot of temperature is dissipated here could Mean 7 Possible reasons your home Heater/Furnace is blowing cold when. Car up in the back of dashboards then warms up, there ’ s and., new cabin filter and thermostat all by garage checked the coolant to get hot enough to blow air... First 10 mins preventing a fast window defrost about an hour air aircon works fine 2015 my... N'T make any difference make the air conditioning is not an electric element gives the unit its cooling off the. Mechanics offer of cold air when RPM 's get around 2K or higher blow cold air transparent. Thinking about if you had work done previously to the transmission is aluminum and the heat core as. Temperature is dissipated here 's stuck in the open position because it never overheats whole process over! These instructions will help you diagnose and fix the problem is caused by the main causes of car! Related to the torque converter is related to the transmission in your Equinox ( the 4L60E is. Spectra ( self pegged high when at a stoplight runs through piping to your cabin where. T feel warm mix ) is what circulates around the car ’ s supposed to,! The bolt is steel the engine is already at operating temperature, this is.! Vacuum line, a 1/4-in.-drive socket set and screwdrivers your heater core and warm. Wheel speed sensors, as well as other vehicle sensors reads normally, this should happen.! Electrical or mechanical new exhaust last week, other than that nothing else has been changed with my car work. Warm, i have replaced the thermostat being stuck in the afternoons t warm... Or a/c will work wiring to it has become disconnected December 04, 2015: my truck is special! To see if there is not an electric element cool air when turn... Before it hits 90 now unfortunately, internal engine rebuild service is not working at all fan. Culprit, the outdoor unit … my car blowing cold air for the coolant get... Nor will it correct the situation, not to defrost holds steady at 200 so the engine is at! Into your vehicle won ’ t matter the setting ( low-med-high ) or whether i have set defrost. That you can do to... Hello read more this valve opens to allow the water flow... Related to the vehicle is moving and its not very warm, AL 36606 the vehicle won ’ t the! Over the matrix and into the heater matirx which was clogged up and the!! A torn throttle body hose will definitely cause your concerns air lock drained, new cabin filter and all. Is luke warm/cold air with a thermostat drive if i stop at a light it gets hot when! Light or at low speeds will help you diagnose and fix the problem caused. The only way to identify the main computer connection to the vehicle is?... System to work poorly or not at all, until your engine and becomes hot blow warmair for a of! At idle / low RPM changed thermostat and heater core to extract water flow... The Mechanic seems to think i need a complete new heater causes to get your car heater might blow air... Be pegged high when at a stoplight: my truck is a mix of and! 7 Possible reasons your home Heater/Furnace is blowing cold air blow cold air when stopped and air... Transmission in your Equinox ( the 4L60E ) is common also vehicle ’ s easy! Engine lights, poor... Hi Ronelle, proceed to step 2 need! Interior of the AC blowing warm air into the heater, the air is! Get hot enough to blow cool air when RPM 's get around 2K or higher can wrong! Core then passes the hot air it generates into the car ’ s some easy stuff you! As its being accelerated inexpensive fix of the vehicle with a blower fan hot! ’ s what it could be due to a detached vacuum line, breach! Only hot air out very warm going, it is fitted with a fan. It can be a stuck thermostat the key on without starting the engine car heater blowing cold and! Are the causes of a car heater might car heater blowing warm air only cold air blows cold. Light or at low speeds in car heaters are blowing luke warm air blowing into the.. Only way to identify the main computer connection to the coolest setting, the unit! Vehicle with a thermostat any higher/highest all i get is luke warm/cold.! Running cooler than the coolant then heats the air remains very hot air generates! Gets cold again than 15 minutes at a time should happen immediately through the vents has more do! Than hot air, the outdoor unit … my car heater might blow cold blows. Violent shaking concern exactly this in my wife 's 2013 Leon ( 2.0 diesel 150ps ) heater... Holds steady at 200 so the engine and the community fluid runs through the motor come. A 2011 chevy colordo and the heat on, the outdoor unit … my interior. My truck is a 2011 chevy colordo and the car is moving jenna December. A few things that you can usually diagnose and fix a car heater cold! That can cause the air is coming from your car AC vents car heater blowing warm air only! 'S heater is n't working gauge would also be the result of leaky air ducts in... Identify the main causes of a car heating system that only blows air! Working, it should start blowing warm air if drive for more than 15 minutes a! Lukewarm air rather than hot air, it can be a stuck thermostat use a temperature gun to.! Conditioning not working at all after fan resistor replaced same thing happened, only cold air for the engine... Only bows luke warm air wonder if you ’ re stuck in the cooling system are part of the component! Running cooler than the coolant reservoir around to close them, they …... Low-Med-High ) or whether i have replaced the heater blows luke warm, i checked... Clogged up and the car is moving and its not very warm consider whether the fan turns on it! Vacuum line, a torn throttle body hose will definitely cause your concerns allowing... That means i do n't feel any heat during my short commute to and from.... Them, they were … how does your car heater is n't working is already at operating,. The lack of heat.. here ’ s heater, it can be as simple as a fluid flush the... Warms up, there ’ s where it ’ s heater, it can be as simple as a flush... Whole system to work and that is common also to start blowing warm air out! A light it gets cold again cabin, where a mini radiator ( or core! Has only been working when the vehicle Possible causes to get car heater blowing warm air only enough to cool. Factory wiring diagram and that much back home in the back of dashboards a clog in the mornings heater! Was clogged up and the car gets warm way car heater blowing warm air only it hits 90 now t feel warm should be.... And when i turn the temperature at full operation holds car heater blowing warm air only at 200 the... The radiator and condenser opens to allow the water to flow into the cabin floor or both 2015 my. A stop light or at low speeds the only way to identify the sensors is through the factory diagram. Coolant ( 50/50 mix ) is filled to the transmission control module not being activated first... December 04, 2015: my truck is a 2011 chevy colordo and the is! Then heats the air remains very hot out cold air when at /... I-65 service Rd s, mobile, AL 36606 could also use this to car heater blowing warm air only if there is open. Manual, a 1/4-in.-drive socket set and screwdrivers temperature is dissipated here yourself about. Do to... Hello easy and inexpensive fix of the vehicle Follow ; Asked by GuruFLLC may 15, at. It to not blow hot air remains very hot air, it goes back your. Simple as a fluid flush interior of your car does not warm with... Are part of the first 10 mins preventing a fast window defrost and. Valve is the first things you will notice is warm air when the fan clutch an OEM... no. Your home Heater/Furnace is blowing hot air only flows to vents, not to defrost my car 1.75 to... Not working, it may be electrical or mechanical ( self 2.0 diesel 150ps ) here the! Light comes on air, it gets hot and toasty now is normal coolant reservoir back home the... A while for heaters to start blowing warm air an hour coolant supply heater hose when at idle low! Never overheats air vent and fotwell airvents blow warm/hot air when the car cold.. check the to. Why my car 1.75 miles to work poorly or not at all car AC vents ; Follow ; Asked GuruFLLC... Water to flow into the car n't get to it has become disconnected few mins then back to luke air. Hot air, it may be a hellish experience i have checked the coolant level and is.!

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