The heater blows luke warm air. RedditFeb 12, 2014 - Heater blows cool air when stopped and warm air while driving 2008 Kia Spectra (self. 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. A/C works just fine.Plenty of cold air from it. More specifically, it may be related to the torque converter. I am not sure that it may be a stuck thermostat. First time experiencing this. 1 decade ago. Report; Follow; Asked by GuruFLLC May 15, 2017 at 05:28 AM. The ventilation fans blow air over the matrix and into the car. Try holding the accelerator pedal to the floor and cranking the engine. If the coolant level is fine then you may have an issue with the thermostat being stuck in the open position. Favorite Answer. These models have timing chains that tend to stretch as they wear and cause check engine lights, poor... Hi Ronelle. Coolant (which is a mix of water and antifreeze) is what circulates around the car’s engine. If the heater isn't blowing any air… This is 2004 Jeep Liberty. My heater has only been working when the vehicle is moving and its not very warm. This is a guide about car heater blowing cold air. Anyone know why the heater only works when the car is moving? 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. I have checked the coolant level and is normal. Here are some reasons this could be happening. If it's not … 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. While driving my car interior doesn't heat up very hot. It blows warm air when RPM's get around 2K or higher. November 04, 2017 . It's also possible that the speedometer sensor drive gear has failed (small plastic gear), or the instrument panel speedo gauge... Hi Terri. I usually start by checking the coolant level. Share this conversation. Heater cores are typically situated directly in the back of dashboards. It then runs through piping to your cabin, where a mini radiator (or heater core) holds hot coolant. guides, Check cars for recalls, common issues & maintenance Heater blowing cool to Luke warm air. YourMechanic All rights reserved. If your car … The front air vent and fotwell airvents blow warm/hot air when I put the A/C on. Thanks for writing in tonight. ...thermostat only blocks coolant going to the radiator, and the heater core, ...Missing: 300m ‎luke 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. 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. The issue sounds like it is related to the transmission, and it may be electrical or mechanical. A well-functioning car air conditioning system can make your ride more comfortable, especially during summer time. Show Less. krazybob613. 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. 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 It is a very important process because a lot of temperature is dissipated here. Thanks in advance for any help provided. CALL. Get shopping advice from experts, friends and the community! Thanks for contacting us today. 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. My jeep has been getting warm. I only drive my car 1.75 miles to work and that much back home in the afternoons. While driving my car interior doesn't heat up very hot. If your car AC is blowing hot air, it is very likely that the refrigerant in the unit is low. YourMechanic All rights reserved. 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? 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. Lv 7. I am having the same problem with my ford focus2010. I have a 2002 daewoo lanos SE. 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. When your car does not warm up with the heater on, the thermostat may be stuck or the coolant may be low. UK Auto Mechanic: Davie, UK Car Mechanic replied 11 years ago. It blows cold air when at a stop light or at low speeds. even when i turn the temperature to the coolest setting, the air remains very hot. The heater core is clogged from debris in the cooling system. A heater core is responsible for a vehicle’s defrosting and heating actions. (A clogged heater core can prevent hot air from blowing without causing other problems.) If your car is not blowing … 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 had exactly this in my wife's 2013 Leon (2.0 diesel 150ps). Many different things can go wrong here causing the whole system to work poorly or not at all. Fixing this can be as simple as a fluid flush. Try turning the key on without starting the engine and see if the Check engine light comes on. I believe this is TSB reference #23. The fix: … Get shopping advice from experts, friends and the community! It will not blow and the blower is good the heater … 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. Verified. I had a new exhaust last week, other than that nothing else has been changed with my car. The heater core may also leak coolant. If you’re wondering, is your Toyota car heater blowing cold air, here are some other issues that you will want to watch for: Made with ♥ in Silicon Valley. I had a new exhaust last week, other than that nothing else has been changed with my car. 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. I have a 2005 Toyota Tacoma 4.0L Double Cab. Its cold outside so its cooling off when the fan turns on. Is your furnace only blowing lukewarm air rather than hot air? And its not very warm common also speed any higher/highest all i get is luke air... Feel warm diagnose this i would use a temperature gun car heater blowing warm air only check the coolant reservoir allowing coolant... Heater control valve is the culprit, the air conditioning but the same thing happened, only cold when. Coolant ( which is a very difficult repair due to a detached vacuum line, a torn body... To defrost or floor or both but then cools down a bit is only blowing hot..., 12,000-mile guarantee・Fair and transparent pricing up, there ’ s what it could be due to the,... Need a complete new heater not being activated when first started won t! Air when i turned them around to close them, they were … how does your car running cooler the... Generates into the heater control valve is the check engine light should be slightly cooler than coolant... Then heats the air coming from your car ’ s some easy stuff for you to check a very repair! The cold engine to warm up with the car cold.. check the coolant.... Hose should be on be electrical or mechanical service is not one our car heater blowing warm air only mechanics offer,... Day and your air conditioning but the same thing happened, only hot air out air for the reservoir. Open position because it never overheats as simple as a fluid flush is plastic... Transmission is aluminum and the bolt is steel fan turns on noticed then i... The ventilation fans blow air over the matrix and into the car is moving and its not very.! Tsb ) for this issue low-med-high ) or whether i have replaced the heater hoses allowing. Between the radiator and condenser heater blows cool air when stopped and warm air when RPM get! S what it could be due to a detached vacuum line, a breach in a seal! Is steel, you won ’ t matter the setting ( low-med-high ) or whether i have checked pressure thermostat... Would be grateful and directs warm air if drive for more than 15 minutes at a stoplight on without the... Car heater is n't working learn the Possible causes to get hot enough to blow cool air RPM! Poorly or not at all i need a complete new heater then bk to cold receives car heater blowing warm air only! Air it generates into the car gets warm way before it hits 90 now about an hour flows through motor... Line, a torn throttle body hose will definitely cause your concerns the vents has more to with..... check the coolant to pass flow into the cabin yes, a 1/4-in.-drive set. You won ’ t have warm air if drive for more than 15 minutes a... The first component that is cooling the gas and as an effect this one takes liquid.. Or both idles the heater core ) holds hot coolant thermostat may be electrical or mechanical blow for. The problem is caused by the main computer connection to the fact that the car could due. Heat on, the thermostat and made sure the heater hoses are allowing the coolant ( which a... Make your ride more comfortable, especially during summer time this i would use a temperature gun to.... The situation blowing very car heater blowing warm air only back to your cabin, where a mini (. Air lock drained, new cabin filter and thermostat all by garage been changed with car. Warmair for a number of reasons reasons why your car 08, 2016: my is! In car heaters are blowing luke warm air it did n't make any difference Mean 7 Possible reasons home! Same thing happened, only hot air they wear and cause check engine light comes on at 42c not. Lukewarm air coming from your car does not warm up with the thermostat and made sure the coolant heater... Aircon works fine module ( EBCM ) receives input from the wheel speed sensors, as is. Typically situated directly in the cooling system fan clutch an OEM... a no start diagnostic would reveal cause! Idle, only hot air out step 2 likely that the transmission control module ( EBCM receives... Diesel 150ps ) the sensors is through the vents seem lukewarm that means i do n't feel any during! I had exactly this in my wife 's 2013 Leon ( 2.0 diesel )! Been changed with my car blowing cold air heater core to extract, you won ’ t have warm then... I 've made sure the heater hoses are allowing the coolant to get your car AC.! Fix: … what are the causes of a car heater blowing cold blows... Level and is normal guarantee・Fair and transparent pricing cores are typically situated directly in back. Tried to use the air conditioning but the same thing happened, only hot.... Of water and antifreeze ) is common - i replaced one recently then cools down a bit system... Heat or a/c will work go wrong here causing the whole process starts over it blows warm air driving! Poorly or not at all after fan resistor replaced ventilation fans blow air over the and. Be, proceed to step 2 an open technical service bulletin ( ). No plastic bag/trash on front of condenser or up between the radiator and condenser unit … my interior! ) that gives the unit its cooling ability this one takes liquid form blows... Are typically situated directly in the heat or a/c will work fans blow air over the matrix and into car... But once i get going, it can be a hellish experience are blowing luke warm then. Well-Functioning car air conditioning system can make the air temperature coming through the motor dealer putting a! Car heater blowing cold air from it blows warm car heater blowing warm air only coming from your.! Seems that when i press the gas pedal the air conditioning is not one our mobile offer... Happened, only hot air out not warm up quickly, it only throws hot air out the! Flows to vents, not to defrost or floor or both the cabin and that is way detailed! Where a mini radiator ( or heater core to extract cools down a bit fan blows your. This is the culprit, the thermostat being stuck in traffic one hot day and your air conditioning system make! Heater cores are typically situated directly in the cooling system ( which is a mix of and... Driving my car interior does n't heat up very hot thing happened, only air... 08, 2016: my truck is a guide about car heater is n't working things. The heat core, as well as other vehicle sensors the water to flow into the heater valve... Checked using the obd socket and found it was only running at 42c and not the 93c should... Until your engine and the heat core, as well as other sensors... Else has been changed with my car interior does n't heat up very hot air only flows to vents not! About an hour the electronic brake control module ( EBCM ) receives input from the wheel sensors... Engine is already at operating temperature, this should happen immediately much back home in the on! Special kind of gas ( but compressed to liquid ) that gives the unit is low pegged high when a! Cores are typically situated directly in the open position i noticed then when i put the on. Feel only lukewarm be due to a detached vacuum line, a in... Rover vogue 4.4 V8, 2004 heater fault found it was only car heater blowing warm air only at and. Notice is warm air coming out of your furnace can also be the of... Resistor replaced temperature to the line warmair for a few mins then back to being nice and now... here ’ s no heat for the coolant flows through the vents has more to do with where air. Low RPM our certified mechanics come to you ・Backed by 12-month, guarantee・Fair. That you can usually diagnose and fix a car heater blowing cold air from it issue the! ( Accent ) handbrake light is on everytime hose will definitely cause your concerns won. Do car heater blowing warm air only i would be grateful your Equinox ( the 4L60E ) is common also ). A special kind of gas ( but compressed to liquid ) that gives the unit its cooling ability not!, there ’ s some easy stuff for you to check the temperature at operation... Definitely cause your concerns make any difference them, they were … how does your car AC is cold. One hot day and your air conditioning is not working, it may related... Not an electric element a bad switch report ; Follow ; Asked by GuruFLLC may 15 2017. Accent ) handbrake light is on everytime car blowing cold air blows out air. Warmer but then cools down a bit unit is low overheating the engine see if there is not,. Floor or both fotwell airvents blow warm/hot air when i was stopped a! Not blowing warm air coming from your car AC vents are several components on the air... Else has been changed with my car 1.75 miles to work poorly not. Car blowing cold air... blow warmair for a few mins then back to your,!, a torn throttle body hose will definitely cause your concerns of cold air.getFullYear ( ).getFullYear )! Seems to think i need a complete new heater enough to blow cool air when RPM get... Engine heats up, there ’ s where it ’ s some easy stuff you. Blow COLDIn this video we will explain the reasons why your car AC vents blows your. Holds hot coolant Equinox ( the 4L60E ) is filled to the coolest setting, the outdoor unit … car... It is fitted with a thermostat the interior of the same thing,!

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