When the door is turned (by the blend door actuator) it will block cold air, turn it the other way and it will block hot air. The evaporator absorbs heat and converts the liquid refrigerant back to a gas. At other time the air conditioning cycyles up to the defrost vent then down to feet then back to vents. 2004, When using the heater, the left side of the middle vent will blow cold,or whatever the outside temperature is, the right will blow hot air. 5L and The driver side air blows cold while the passenger side blows hot when the heat is on. Air Conditioner re-fill and service. What could this be as the coolant fluid is full. What I did is:. But blows cold air in the winter when it is set to hot. I did so and now the drivers side blows hot all the time not random like before. You can find this under the hood of the car. hot air blows with cold air when heat is on 4 Answers I have recently had my radiator, heater core, and out/in lines flushed. My '05 A6 also has this weird hot-air-blowing problem. HOT air from the driver side and cold air from the passenger side. The driver side actuator is really easy to change. Raise the Drivers side to 82F, there should be an obvious difference in temperature. Also, the fan will not run past 4 when the air is working right. If left on the compressor would eventually stop cycling. I can hear a noise under the dash trying to switch it to cold. Air Conditioning is standard across the Scorpio range however on higher marques such as the Ultima, Climate Control is fitted as standard and was an optional extra on lower spec vehicles. When your air conditioning stops working, what you’ll usually notice is that your HVAC fan runs normally, but the air coming out of your vents isn’t cold. Not sure what to check, or if I could be low on Refrigerant or what??. Description: This is how to find and fix a common AC. On the F150 it's a $35 part, but to get to it you have to remove the seats, center console and the ENTIRE dash to get to it. The passenger side blows as strong as the drivers side (in terms of air pressure), however, it's warm/hot air only. Raise the Drivers side to 82F, there should be an obvious difference in temperature. Re: A/C Blows HOT on Passenger side, COLD on driver side, after dealer service One of the blend doors that controls where the air goes in the dash is either stuck or the motor that controls it has failed. Hi, my 2011 Tiguan is blowing hot air on drivers side and in back seat, but cold air on passenger side. Cold air includes passenger vents, defrost and floor. Remaining gas and warm air transfers from the passenger compartment back to the compressor where the process starts. The 2 vents on the drivers side have warm air blowing out. After you shut the car off over night (or long period time) the air will work again and then 20 to 40 minutes into the drive it will start blowing hot on the passenger side and the driver's side is not as cool as it should be. The evaporator absorbs heat and converts the liquid refrigerant back to a gas. I laughed inside for 2 reasons. Yesterday I pulled the actuator door motor off (driver side) and with the wire still attached I turned the car on and the motor worked properly. The louver is used to direct the flow of air coming from the air conditioner. Using the windshield wipers and the rear defroster can get rid of condensation there by wiping it off or making it evaporate. I have an 06 srt8, 46k miles. Air Conditioning is standard across the Scorpio range however on higher marques such as the Ultima, Climate Control is fitted as standard and was an optional extra on lower spec vehicles. Originally this occurred on the driver's air vents. When the AC is turned on, my 2010 F150 blows hot air into driver side compartment but cold air into the passenger side compartment. mine did the exact same thing today. Not sure what to check, or if I could be low on Refrigerant or what??. Our GM Air conditioning compressor features Hi/Low pressure switch for compressor protection. I have a 2005 LT, and the driver's side blows hot air, but the passenger side blows cold air. My car has 85000 miles. When the truck starts up the driver's side, the water is picked up into the line. Two second job for diagnostics, with the engine at operating temperature, AC on, that clutch plate in front for the AC compressor idler pulley should be turning. On the first really hot day of summer, the last thing you want is to flip the switch on your central air conditioner only to find that it doesn’t work. Thoughts or suggestions would be indeed helpful. The air conditioners in the whole house experienced the same thing. It was over charged a bit at one point, but no longer. Have similar symptoms - groaning and creaking noises from under the dash, passenger side blows hot air with AC on, but sometimes blows cold as it should. The condenser and evaporator are, more or less, two radiators connected in a loop. You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the. I recommend this place 100%. Sometimes it's okay (blows both sides cold) and it never does both sides hot. After shutting off the engine and restarting, the A/C worked fine. Get fast, Free Standard Shipping on orders over $99 from Summit Racing--no shipping, handling, or rural fees! Exclusions apply. When the door is turned (by the blend door actuator) it will block cold air, turn it the other way and it will block hot air. When my wife first told me that her vents were'nt blowing but slightly cool air, I didn't believe her because the two on my driver side were quite cold. 2004, When using the heater, the left side of the middle vent will blow cold,or whatever the outside temperature is, the right will blow hot air. Driver's side and rear area are all pumping cool, air conditioned air. I realize similar questions on this issue have been posted, but I needed some clarification on some points. The GM air conditioning features a flat firewall for a clean look, Air conditioning louvers are in-dash. It did fix itself by turning the truck off, waiting a few minutes, then restarting it. On the F150 it's a $35 part, but to get to it you have to remove the seats, center console and the ENTIRE dash to get to it. If it blows air but doesn't defrost the window check your AC compressor (as that has to run to take moisture out of the air blowing onto windshield). 2013 Ford Edge 3. The Low Pressure Side port will have a cap marked L or Low. Similar thing happened on our F150. You can find this under the hood of the car. 7 is throwing hot-normal air and no more AC. The passenger side is closet to the evaporator coil AND the passenger side air passage is towards the from of the box. Currently being fixed at the dealer for $566. Any idea what might be wrong? With this cold temperatures its hard to drive. Thank you for replying. What happens now is that the air exiting the evaporator is cold air. Thoughts or suggestions would be indeed helpful. The SLS just went over 214,000 miles and frankly the squeek didn't bother me that bad. In cars with air-cooled engines, air for the interior heater can be warmed by ducting it around fins on the hot exhaust manifold. I had the exact same problem as this forum suggests, with the AC on, hot air from ac coming from driver's side vents, and passenger side vents were blowing cold. As an international pioneer in the aerospace sector, Airbus designs, manufactures and delivers industry-leading commercial aircraft, helicopters, military transports, satellites, launchers and more. is that the only fix?. Warmer than the driver's side when the air conditioning (A/C) mode is on. My 2005 Ram 2500 has started blowing warmer air out of the 2 vents on the passenger side. Also, the fan will not run past 4 when the air is working right. What happens now is that the air exiting the evaporator is cold air. Electrical issues with car air conditioners can cause the same complaint of my air blows hot. It's blowing warm on driver sid and cold on passenger side. Chevrolet Vehicles Diagrams, Schematics and Service Manuals - download for free! Including: 1923 chevrolet car wiring, 1923 chevrolet general wiring, 1923 chevrolet superior model, 1923 chevrolet wiring, 1925 chevrolet superior model series k, 1927 chevrolet capitol and national, 1927 chevrolet capitol and national models, 1928 chevrolet general wiring, 1928 chevrolet wiring, 1928 chevrolet. From the rear controls we can make the air warmer but the air is still warm on the coolest setting. The 2 vents on the drivers side have warm air blowing out. Some new car owners,think this is a heater core issue. The passenger side blend door actuator is used on all models equipped with Automatic Zone Control (AZC). Dodge Caravan - AC putting out hot air on passenger side; cold on driver side - Bought a brand new 2015 grand caravan and already have a problem with the AC. It's a 2007 ridgeline with 50k miles. My 2013 edge AC blow hot air on passenger side? - My car blows very hot air on the passenger side even when I have the air on Max × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. Fans help blow the cold air through the vents and allow the cooling of the cabin. My a/c will blow very hot on one side one day but plenty cold on the other side then switch sides the next day. Blowing Warm Air. Your Ford dealer is the best source of the most up-to-date information on Ford vehicles. AC vents blow warmer air on passenger. Cold air includes passenger vents, defrost and floor. At times it would blow hot air, but would stop after the car was turned off and on. toyota forum at Car Dealer Forums; I recently had the dealership changed the air filter of my 2004 Sienna. It doesn't always have this problem. Air Conditioner re-fill and service. For me, the blender motor was stuck in the open position. A turbocharger may also be used to increase fuel efficiency without increasing power. It's blowing warm on driver sid and cold on passenger side. My 2005 Ram 2500 has started blowing warmer air out of the 2 vents on the passenger side. M20, M30, M40, M70, S38 FAULT MALFUNCTION 1 Fault in the DME control Unit - Reset and run vehicle if code returns replace DME. I have an 03 Impala, and for some reason on the drivers side its blowing cold air while the passenger side is blowing hot air. Heat pumps don’t discharge air that is as hot as the air discharged by oil or gas forced-air furnaces, so don’t expect their output to feel like that of a furnace when they’re on. Note that I said "to spec" because over-servicing an AC system will also cause it not to function. Mine blows cold on driver side but warm on passenger side. corvette-web-central. Tahoe & Suburban - 2005 Suburban blowing hot air on driver side. We offer free customer service and will walk you step-by-step through the entire installation process. I bought an BLEND DOOR ACTUATOR to replace the one that controls this function, however even the new actuator will not function when the wires are connected. Water dripping out of the air conditioner drain onto the ground is totally normal; water dripping onto the floor of the car from the air conditioner is not. My '05 A6 also has this weird hot-air-blowing problem. If you crank the temperature knob for the passenger side to "hot" the heat flows out through the vents, but it seems it will not flow cold air from the air conditioner. I had the exact same problem as this forum suggests, with the AC on, hot air from ac coming from driver's side vents, and passenger side vents were blowing cold. You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the. I just replaced the ac blend door actuator with no luck. Hey Guys, My wife's 2006 Nissan Quest is blowing cold air from the passenger's side vents but not the driver's side vents. AC Blows Hot on Driver Side Air blows warm air out of the. As two air-conditioning units are utilised, the components for the air distribution for the front. AC blows hot on driver and passenger blows cold AC Welcome to the XLR Net! You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. Ford reserves the right to change product specifications, pricing and equipment at any time without incurring obligations. Driver's side and rear area are all pumping cool, air conditioned air. The driver side is Passenger Side AC Issues help - JeepForum. Then this afternoon I discovered that the AC is blowing COLD and HOT air through the vents at the same time. 5 is allowing hot air on the passenger side when AC is on in "auto" setting. When the AC is turned on, my 2010 F150 blows hot air into driver side compartment but cold air into the passenger side compartment. If it is, put your hand on the AC lines going into the firewall, one should be warm, the other ice cold, if both are warm, you are low on refrigerant. A condenser, a compressor, and an evaporator. Dodge Caravan - AC putting out hot air on passenger side; cold on driver side - Bought a brand new 2015 grand caravan and already have a problem with the AC. Most newer passenger car A/C systems do not hold much refrigerant (14 to 28 oz. Thank goodness. Everytime I restart the key and turn a/c on the door actuator cycles back and forth once then stays on the hot side. When the door is turned (by the blend door actuator) it will block cold air, turn it the other way and it will block hot air. I have dual control air. At the same time, the system collects and drains the condensate. 2004 Sienna AC one side blows warm air Results 1 to 6 of 6 Discuss 2004 Sienna AC one side blows warm air in the alt. is this - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. The defrost button has three lines going through it, while the recirculated air button has a picture of a car with a curved line through it. When running the AC, the drivers side vents are the only vents that blow cold. Any idea what might be wrong? With this cold temperatures its hard to drive. Clogged Air Conditioner Drain. Enter diagnose mode and post values. low will cause the passenger side vents to blow cooler air, and the driver’s side to blow warmer air. I have the same predicament. Most newer passenger car A/C systems do not hold much refrigerant (14 to 28 oz. well, it worked for awhile but here i am in 102 degree heat and when I turn on the A/C in the really hot car the passenger side quickly blows cold air and the driver side takes about 20 minutes before it finally gets cold. In the winter time the driver's side was blowing cold regardless of the temp setting while the passenger side was blowing warm air. With the AC off it will blow very hot air (much hotter than ambient) on the driver side and ambient air on the passenger side, or with the AC on it will blow heated air on the driver side and ice cold on the passenger side. Three Reasons why Your A/C is. How Air Conditioners Work: An air conditioner has three main parts. The car is in super shape, with only 66k on the clock, and no other issues (so far). Get fast, Free Standard Shipping on orders over $99 from Summit Racing--no shipping, handling, or rural fees! Exclusions apply. My car has 85000 miles. And the drivers side works as advertised with the other actuator installed. Hi, my 2011 Tiguan is blowing hot air on drivers side and in back seat, but cold air on passenger side. I'd suspect that the air mix damper on the driver's side is not functioning. LR3 Driver side AC not blowing hot air - posted in General Discussion Forum: Hi, Lately I noticed my LR3 does not blow hot air on the driver side but cold air works fine. Hello, I just realized the ac on the passenger side of my 2006 Grand Cherokee Laredo 4. [2016 Mustang] Driver side A/C blows hot air, passenger side works fine, any solutions? Question Had my car for a little more than a year, just noticed that the driver side blows ambient temp air even tho i have both sides on low (whether dual zone is on or not), changing the dashboard settings doesnt make a difference, anybody ever deal with. Tried it at 45 degrees and again when it was around zero. Using the windshield wipers and the rear defroster can get rid of condensation there by wiping it off or making it evaporate. He said it was the cabin air filter causing the problem, and wanted $50 to replace it. The only way to combat this is to turn the driver side temp down to 65 degrees and turn the passenger side up to 70 or so. Make sure your A/C is running at its best. Air Conditioning is standard across the Scorpio range however on higher marques such as the Ultima, Climate Control is fitted as standard and was an optional extra on lower spec vehicles. Most the heat seems to be coming out of the vent underneath the passenger seat, although the air coming out of the dash vents is not nearly as cool as on drivers side vents. If there is no vacuum from the engine to the dash, or if the valve in the dash is leaking that vacuum then it will default the diverter door to blow air out the bottom and top vents only. Sometimes it's okay (blows both sides cold) and it never does both sides hot. Multiple air conditioners on eBay don't require a ventilation system. The truck was sitting up all week becuse I was out of town, and when i cranked it up, the driver side started blowing hot air like I had the heater on high, but the passenger side was ice cold. My 08 Tahoe started blowing hot air from the passenger side vents. how it works and how travelers can best utilize the that little air conditioner. In cars with air-cooled engines, air for the interior heater can be warmed by ducting it around fins on the hot exhaust manifold. The louver is used to direct the flow of air coming from the air conditioner. The passenger side would be COLD. well, it worked for awhile but here i am in 102 degree heat and when I turn on the A/C in the really hot car the passenger side quickly blows cold air and the driver side takes about 20 minutes before it finally gets cold. For instance, a system that is ½ lb. Home Made Air Conditioner I: I was wanting an air conditioning unit for my tree house. My 2005 Chevy Silverado with dual zone climate is occasionally blowing hot air on the driver's side and cool on the passenger. This allows for the creation of drier air in the passenger cabin. I've experienced this myself in two BMWs, one Nissan, and a Ford. The far right vent on the passenger side blows the coldest air, but it's still not freezing cold. It sounds like your a/c is operating fine since you get cold air on the passenger side. Now, here's the reason why you get warm air on the driver side and cool air on the passenger side. If the AC isn't quite as cool as it used to be, the solution might be as simple as recharging the system. Testing: With heater capped-off and AC on, ALL measurements showed the driver's (left) side to be 15 degrees warmer than the passenger (right) side. On a 2003 sierra the ac blows cold on driver and hot on passenger side What would out the driver side when the air conditioner is on but blows HOT air out the passenger side no matter how you. My a/c will blow very hot on one side one day but plenty cold on the other side then switch sides the next day. i have a 2007 suburban with auto feature on the ac (and split contols) intermittently ac vents on passengers side (not the drivers side -which seems much more common) will change to hot and seem to be stuck there now. Over time, a car's air conditioning system will begin be less and less effective, until the day when you turn the knob and all it spits at you as you roast in the summer heat are tepid, warm gusts. The effects of a clogged HVAC air filter in your air conditioner or heat pump can cause failure of the system operation that will result in a call for an air conditioner repair service. When an air conditioner unit sits idle for months, collecting leaves and debris, a bit of maintenance is often needed to get it running properly. Air conditioning is the process by which air is cooled and dehumidified. 3 Electrical Fuel Pump Relay (EKP) 4 Idle-speed Actuator - Open 5 Tank Ventilation Valve 7 Air-flow Sensor 10 Lambda Regulation 15 Check Engine Failure Light 16 Injection Valve(s) 17 Injection Valve(s) 22 Idle Speed. I've just driven my W211 E350 (56 plate) back home and put the aircon on but it only seems to be cold on the passenger side, the drivers side is blowing "normal", non cooled air. It sounds like your a/c is operating fine since you get cold air on the passenger side. Two second job for diagnostics, with the engine at operating temperature, AC on, that clutch plate in front for the AC compressor idler pulley should be turning. Corvette Brainiacs with a Touch of Badassery. This allows for the creation of drier air in the passenger cabin. I will never buy another Nissan vehicle!. The 2014 Dodge Grand Caravan has 4 problems reported for a/c blows hot air on passenger side. If the system is low and not cooling correctly but cooling a little you will get cool air but not COLD air. My AC wasn't working so I brought it to a nearby shop thinking It's just a Freon leak but I was wrong. My 2005 Chevy Silverado with dual zone climate is occasionally blowing hot air on the driver's side and cool on the passenger. If for whatever reason our product does not work for you, or you are in any way not satisfied with the result, we offer a full refund minus shipping and handling. It had a water reservoir that held about a gallon (3. I looked around and found that removing the (-) negative post for about 30 mins would fix this. It's underneath the passenger dash, where your feet go. If the refrigeration circuit seems to be functioning normally (compressor running, frost or condensation on the high pressure line from the condenser to the evaporator), but no cool air is blowing out of the ducts inside the car (and the blower is working), the fault is likely a BLEND AIR door that is stuck in the HEAT position, or possibly a badly clogged cabin air filter that is restricting airflow. I have recently been experiencing very wet and humid air coming from the vents on my 2008 Volvo XC70 when the car is blowing warm air. I just replaced the ac blend door actuator with no luck. This is done easily because the refrigerant has a very low boiling point. Hot air continuously blows out of the vents, even with the AC off. The passenger side blend door actuator is used on all models equipped with Automatic Zone Control (AZC). When air conditioners take humidity out of the air in the passenger compartment, they end up collecting a lot of water that has to drain out of the car. Enter diagnose mode and post values. The 2 vents on the drivers side have warm air blowing out. my car hasnt got dual climate control but its acting like it does. The potential reasons will be: 1. Thoughts or suggestions would be indeed helpful. If you crank the temperature knob for the passenger side to "hot" the heat flows out through the vents, but it seems it will not flow cold air from the air conditioner. Also, the fan will not run past 4 when the air is working right. If the system is low and not cooling correctly but cooling a little you will get cool air but not COLD air. For me, the blender motor was stuck in the open position. I am only getting hot air blowing out of my passenger side vents in my 2009 Flex SEL. The passenger side blows hot air in the summer when the ac is on and is set to cold. There is a cold temperature problem on the passenger side vents. Not sure what to check, or if I could be low on Refrigerant or what??. heater blows cold on driver side but hot on passenger side. As an international pioneer in the aerospace sector, Airbus designs, manufactures and delivers industry-leading commercial aircraft, helicopters, military transports, satellites, launchers and more. Average repair cost is $450 at 46,500 miles. The only problem is that since the passenger side is still blowing cold air, the drivers side starts to blow hot air in order to keep the cabin steady. my car hasnt got dual climate control but its acting like it does. What could this be as the coolant fluid is full. It only does this every once and while,. How to fix: AC cold on one side and Hot opposite side 2002 Caravan List of actuators, functions and locations is at the end of the description. Take off that black kick panel thing, and it will be right there. It usually works fine for a few minutes before it begins blowing hot air. The air from the air conditioner was warm as though I set it to heat mode but it was ok cool mode. With the air issuing from whichever vents you find most convenient to test, raise the Drivers side temperature to 72 (F), wait a few seconds, can you feel a temperature difference when comparing Driver side air output to Passenger side air output? 2. AC vents blow warmer air on passenger. Take off the lower dash panel on the drivers side, if its not that side then remove the glovebox. Not sure what to check, or if I could be low on Refrigerant or what??. The driver side vents are blowing cool (not cold) and the passenger side is blowing HOT. My problem is that when the AC is on, plenty of air blows out the passenger side, but the passenger side air is in normal temperature while the driver's side is cool. Re: heater blows cold on driver side but hot on passenger side. Hey everyone had my fn2 type r for about a month now got sum problems way it like the passenger side blowing hot air all the time but the drivers side AC/Heater Passenger side blowing hot air all the time - Civinfo. I did so and now the drivers side blows hot all the time not random like before. I bought an BLEND DOOR ACTUATOR to replace the one that controls this function, however even the new actuator will not function when the wires are connected. Testing: With heater capped-off and AC on, ALL measurements showed the driver's (left) side to be 15 degrees warmer than the passenger (right) side. When an air conditioner unit sits idle for months, collecting leaves and debris, a bit of maintenance is often needed to get it running properly. If you have cold air/no heat on the passenger side, the actuator that controls this side requires removal of the entire dash and HVAC assembly. Would blow cold air out of both sides, then all the sudden would start blowing hot air out the driver side. With the AC off it will blow very hot air (much hotter than ambient) on the driver side and ambient air on the passenger side, or with the AC on it will blow heated air on the driver side and ice cold on the passenger side. When ac on passenger side blows hot air, driver side okay. Portable AC units like this must have an exhaust tube fitted through a window opening with included adapters to match the gap in a. passenger side ac blowing hot air. The potential reasons will be: 1. A/C is controls are set to max air and max cold on the temp control. If you crank the temperature knob for the passenger side to "hot" the heat flows out through the vents, but it seems it will not flow cold air from the air conditioner. You don't notice the wet air when you have the AC on blowing cold air however I believe the water is just condensing in the vents instead. Cold air includes passenger vents, defrost and floor. corvette-web-central. You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the. Some new car owners,think this is a heater core issue. when it runs warm then it blows a lil bit warmer. If the vehicle has a dual zone A/C, then the most common problem is a bad temperature door actuator. My car has a manual transmission. Blowing Warm Air. The rear air-conditioning unit is located behind the side panel in the left side of the luggage compartment. Hi I have a Nissan Juke 2013 plate, only bought 2 months ago. When the AC is turned on, my 2010 F150 blows hot air into driver side compartment but cold air into the passenger side compartment. Now, there are a few more technical terms, parts, and science to this process we call air conditioning but I feel confident that most of you now know more about how your air conditioner works than you did when you started reading this article. Heat pumps don’t discharge air that is as hot as the air discharged by oil or gas forced-air furnaces, so don’t expect their output to feel like that of a furnace when they’re on. Sometimes it's okay (blows both sides cold) and it never does both sides hot. Air conditioners pull warm and humid indoor air over a coil of cold tubing. The far right vent on the passenger side blows the coldest air, but it's still not freezing cold. the defrost, floor well all of it blows cold but drivers vent. It blows hot on the dirvers side and cold on the passenger side. Any idea what might be wrong? With this cold temperatures its hard to drive. But blows cold air in the winter when it is set to hot. The temperature are both set to the lowest setting but for some reason on the driver side it's blowing out warm air only. For me, the blender motor was stuck in the open position. On heat, both sides are very hot. You can also get a cheap, 12-volt fan from your local auto parts store and plug it into the cigarette lighter in your car so you have more air blowing on you. Recharge Air Conditioning with Freon in a Chevy Cobalt - Locate the Low Pressure Side port quick connect valve. The most common fix is to simply have it replaced. Over time, a car's air conditioning system will begin be less and less effective, until the day when you turn the knob and all it spits at you as you roast in the summer heat are tepid, warm gusts. At the same time, the system collects and drains the condensate. However, now it only blows ambient air. The process also reduces moisture in the evaporator’s air-side. As two air-conditioning units are utilised, the components for the air distribution for the front. When it goes up the passenger side, the water is not picked up. Passenger side blowing hot drivers side cold. HeaterTreater has a perfect success record on all of our products. Our GM Air conditioning compressor features Hi/Low pressure switch for compressor protection. If the door doesn't open, the cool air won't get in. Driver side vents blow icy cold while 9F warmer on passenger. 2004 GMC Yukon XL drivers side ac vents blow very hot air and the passenger side along with the rear blow very cold air - Answered by a verified GM Mechanic We use cookies to give you the best possible experience on our website. When ac on passenger side blows hot air, driver side okay. The driver side vents are blowing cool (not cold) and the passenger side is blowing HOT. 210 in town traffic. This is achieved by diverting exhaust waste energy, from the combustion process, and feeding it back into the turbo's "hot" intake side that spins the turbine. On heat, both sides are very hot. how it works and how travelers can best utilize the that little air conditioner. Seems I can control the air (a/c) on the Driver's side, but the Passenger side vents only blow HOT air--as if the heater is stuck in the ON position for that side. The passenger side has lost heat, only cold air comes out of the vents. At the same time, the system collects and drains the condensate. Of course not under warranty anymore, so on my own. Nearly a $1,500 repair. Corvette Brainiacs with a Touch of Badassery. Q: When I turn the AC on , only the passengers air vents blow cold & the drivers vents blow hot air. You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the. If your car has no heat, not only would the inside of your car feel like an ice box, but a broken heater can prevent your defroster from blowing warm air to your windshield to eliminate ice and fog, which can pose a hazard while driving. You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the. If the vehicle has a dual zone A/C, then the most common problem is a bad temperature door actuator. At speeds of approximately 50+ miles per hour the fans will shut off due to the air flow generated by moving and the engine coolant temp my hoover around. When the door is turned (by the blend door actuator) it will block cold air, turn it the other way and it will block hot air. I will never buy another Nissan vehicle!. The passenger side blows as strong as the drivers side (in terms of air pressure), however, it's warm/hot air only. 5L and The driver side air blows cold while the passenger side blows hot when the heat is on. With the AC off it will blow very hot air (much hotter than ambient) on the driver side and ambient air on the passenger side, or with the AC on it will blow heated air on the driver side and ice cold on the passenger side. - Hello all, I am new to the forum. 2004, When using the heater, the left side of the middle vent will blow cold,or whatever the outside temperature is, the right will blow hot air. By the time the cold air makes it to the driver's side, it has picked up a lot of heat, and you feel the difference. Re: My 1996 Ranger only blows hot air thru the vents. The passenger side blows hot air in the summer when the ac is on and is set to cold. I think I must have a sticking flap servo, but where is the motor located?. Similar thing happened on our F150. This is a good time to fix this, it to me a couple of hours but the cool ac was well worth laying up side down on the passenger floor. Fans help blow the cold air through the vents and allow the cooling of the cabin. Heat blows cold on drivers side and hot on passenger side? This problem is noticed on many car models. thanks Lisa.