The driver side blows out warm air, just like vent. But its not heater core problem. Brought it to the dealer bc I needed an oil change and told them about this issue. When running the a/c on my 1996 STS, the two front drivers vents & rear vent blows hot air while the two passengers front vents blow ice cold. I contacted Alldiscount and they told me I should have got the 39794-SDA-7001, which they were good enough to send me without charge. alternately moved the temp from HI (max heat)to LO (max cool) and verified that the actuator motor under the dash was indeed moving. While we understand that this is likely to be a temporary solution, it is still important to make sure that it is supportive and reliable enough to prevent any issues. It did fix itself by turning the truck off, waiting a few minutes, then restarting it. Blowing hot air on driver side and cold on passenger side. I brought it to my dealer who said they couldn't find a problem, which I found odd. Took apart the dash and I checked all of the motors to see if they were working. In the final evaluation, it is obvious with help from CSU, the avenue is now wide open to mixing compressed air supercharging with a blow-through carburetor for hot rodders looking to taking. Cold air blows on drivers side, hot air on othe Turned on ac getting cold air out of vents on drivers side. The blend door is situated where hot and cold air enter the ducts for the vents, one on the driver side and one on the passenger side. And the drivers side works as advertised with the other actuator installed. Also, the fan will not run past 4 when the air is working right. RE: AC blowing cool one side warm driver side. The drivers side still blows warmer than the passenger. Not sure if I missed something but waht was the solution to the HVAC blowing out the drivers side but warm/hot air coming out passenger side? THanks TS Common problem, you need to recharge your R134a ^. THORNTON, Colo. When your not getting heat on either passenger side or Drivers side and it just blows cold this video will show you how to fix it. This appears to be a very common problem, with a few different causes. After that amount of time, the AC works fine. It doesn't always have this problem. The Buick uses the same evap core as the cadillacs and are considered a (split design),and are true dual hvac system. Cold air blows on drivers side, hot air on othe Turned on ac getting cold air out of vents on drivers side. hey guys battery went dead in my truck own fault left radio now after boosting it drivers side blowing hot air all the time passenger side works fine, whats the fix? 2008 gmc sierra thanks. No noticeable difference in the volume of air being blown, and all the vents are open. AC blows hot air on driver's side, cold air on passgenger side. The A/C will blow cold air through both defog vents. My 2005 Chevy Silverado with dual zone climate is occasionally blowing hot air on the driver's side and cool on the passenger. On vehicles with this type of concern, it is usually caused by a. Turn engine backon. Thousands in the Getty Fire burn were able to return home but several ramp closures along the 405 Freeway continued Wednesday as another Santa Ana wind event, possibly the strongest of the season. Re: 03 silverado blowing cold air on passenger side, hot on driver side Well crap, I will check, if it helps , If I change the passenger side (dual climate control) it will blow hot when asked to, and then cold when asked to. I have had this problem where the driver side vents blow out hot air (as hot as it can get, probably 85f) regardless of what the controls are set to (controls could be set to 60f and you will get cold air from the passenger side and hot hot air from the driver's side). Click here to add your own comments. Also, the two drivers' side vents were just a couple of degrees cooler then the passenger side. I have a Jag xjs v12 86 TWR, that I am currently restoring I have checked some of the threads but wanted to ask a couple of questions about the heater side. The Air Conditioning is blowing cold on the drivers side but hot on the passenger side, climate control on passenger side is set all the way to cold. To view links or images in signatures your post count must be 0 or greater. Fan is not affected. Thousands in the Getty Fire burn were able to return home but several ramp closures along the 405 Freeway continued Wednesday as another Santa Ana wind event, possibly the strongest of the season. Mine doesnt have auto feature though. Would love to know how to fix this. could you please elaborate. This actuator controls the temperature door for that side. But its not heater core problem. 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. 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. The problem I met is that only passenger side blows out cool air. This actuator is what controls the temperature door. My car has a manual transmission. I bought the Mitsuba 7001 11 2608 at recommendation from this forum, but when I installed it the AC started blowing hot air to driver. Answer: Most common problem is a bad temperature door actuator if it does have dual zone A/C. Hi - I have a 2006 RAV4 and a few months ago, it got stuck blowing only hot air on the passenger side. Originally Posted by jmackin mine does this from time to time. Would anyone give the advise where I should check? Check out thread. THORNTON, Colo. Just like the title says, for the past month or so, the vents on the driver side have slowly been starting to lose heat, and have now started blowing cold air. 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. " and the only thing that they did is to disconnect the battery to fix one of the tail lights. Any ideas?. In our case I was pretty sure it was the passenger blend door actuator. I haven't checked the rear air to see if it is blowing cold or not, will do that tonight when I get home and post if it is or not. It came and went. When I got my car back, the A/C of the driver side is just blowing hot air. My 2015 Nissan Rogue blows out hot air on the passenger side of my car. I brought it to my dealer who said they couldn't find a problem, which I found odd. Drivers Side Blows Cold, Passenger Warm - Or Vise Versa Most of today's cars and trucks have the ability to blow different air temperatures form the drivers and passenger side. Why is it doing this? Two shops have told me different things. I looked around and found that removing the (-) negative post for about 30 mins would fix this. 3L V8, when I am driving normally and have the A/C running the drivers side blows out ice cold air conditioning but the passenger side blows out HOT air. Dual zone A/C systems have a temperature. Our firm aims to operating faithfully, serving to all of our consumers , and working in new technology and new machine continually for Injection Stretch Blow Molding Machine, Energy Saving Blow Moulding Machine, Juice Filling Line, We sincerely hope to provide you and your company with a great start. Cordless Driver Kit 12V Includes 2 x 1. could you please elaborate. Air conditioning system, when you turn on the air conditioner the drivers side blows cold air and the passengers side blows hot air? What causes this problem? The most common cause of this is that you have a stuck air temperature control blend door, this can be a motor actuator issue or a jammed door or both (common). Spillage/leaks. AC blows hot air on driver's side, cold air on passgenger side 78 Answers. Passenger side blowing hot drivers side cold. Heat on passenger side and cold on driver side. I have replaced the blend door motor and the relay switches. I will check the back vents but the kids in the back complain it is hot so I am assuming it works in the back. The cycle can last from 2-15 minutes. still blowing warm air just an updatebrought the X for oil change and mentioned the problem with the a/c(again). Answer: Most common problem is a bad temperature door actuator if it does have dual zone A/C. On vehicles with this type of concern, it is usually caused by a. In the final evaluation, it is obvious with help from CSU, the avenue is now wide open to mixing compressed air supercharging with a blow-through carburetor for hot rodders looking to taking. EBAy has them all the time. So I've noticed our 2004 rav4 is blowing cold air on the front driver side even when the engine is warm. 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. I'm having the same problem. After replacement of a drained battery, the driver side AC circulates between warm, cool, and cold approximately every ninety seconds while the passenger side works properly. Its booked in at the main dealers on friday to have a 4 wheel alignment done, do you think its worth getting them to have a look at it or could it cost big£££££££. No noticeable difference in the volume of air being blown, and all the vents are open. My 2015 Nissan Rogue blows out hot air on the passenger side of my car. When I got my car back, the A/C of the driver side is just blowing hot air. 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. This is what is causing the fault. my '04 was blowing. Q: When I turn the AC on , only the passengers air vents blow cold & the drivers vents blow hot air. 96 Buick Park Avenue HVAC blows warm on driver's side, cold on passenger's side I have a 1996 Buick Park Avenue with Automatic Temperature Control. Thanks to forums for providing discussions and advice on fixes. Today, I had driver side A/C on (by move down the temperature), but the passenger side vents blow warm air. The blend door is situated where hot and cold air enter the ducts for the vents, one on the driver side and one on the passenger side. AC blows hot one side that only the driver side was putting out hot air and the passengers cold when the heat was turned up on both sides. It's blowing warm on driver sid and cold on passenger side. Thanks for you help, I am tired of sweating in the Texas heat. 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. Ac is blowing hot on one side and cool on the other side. 3L V8, when I am driving normally and have the A/C running the drivers side blows out ice cold air conditioning but the passenger side blows out HOT air. The thing that's crazy to me is. It usually happens when the engine is hot and after making a brief stop (less than 5 minutes). A/C is controls are set to max air and max cold on the temp control. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. The aircon on the driver side of my near COE expiry car suddenly not blowing cold air. I have a 2004 Chevrolet Tahoe LS 5. I had to use my defrost last night and today when I tried to use the AC, it blows hot air on the driver's side and cold air on the passenger side. Where is fuse panel in 2012 ford explorer xlt? looked everywhere just short of ripping off panels and carpet?. I ordered a recharge hose/gauge from Amazon and picked up a can of r1234 at Autozone, filled the system, and the system is blowing ice cold now (just over a week. But on the passenger and rear vents its blowing normal air as if just the blower was blowing with no ac compressor. Our firm aims to operating faithfully, serving to all of our consumers , and working in new technology and new machine continually for Injection Stretch Blow Molding Machine, Energy Saving Blow Moulding Machine, Juice Filling Line, We sincerely hope to provide you and your company with a great start. If someone knows where the pass. Driver's Side AC blows warm air, passenger side is still cooling fine. I have had an inspection done on a 2011 508 and inspection report has generally come back pretty good with a few minor issues to sort out. Chuck Capacity 0. my 2012 Enclave is blowing hot air while in AC mode. We Make Things Move® A forward-thinking innovator, Bimba provides industry-leading pneumatic, hydraulic and electric motion solutions that are easy-to-use, reliable and ready for your engineering challenges. driver side blows hot air instead of cold. I was trying to cool down the car so I set the A/C to 65 degrees and it was working beautifully on the passenger side, but blowing very hot air on me. The problem I met is that only passenger side blows out cool air. Answer this question I have this problem too Subscribed to new answers. Just recently I've noticed that when I place my hands near the vent on the driver side with the AC completely off I can feel hot air emitting out of it. I had the same issue with my '16 EX-T. For the warm mist humidifiers, some users soak the heating element and plastic in the white vinegar solution for several hours and then scrap off the mineral build up (orange stuff) with a tooth brush or screw driver. The cycle can last from 2-15 minutes. hey guys battery went dead in my truck own fault left radio now after boosting it drivers side blowing hot air all the time passenger side works fine, whats the fix? 2008 gmc sierra thanks. The 2 vents on the drivers side have warm air blowing out. when iturn the driver side all the way down it still blows full blown heat, its not like its just the air blowing warm cuz its not working properally, it is heat. the pass side knob works properally,. Did anyone ever find out the problem. Help! 01 C5 Blowing Hot Air On Driver's Side and Cold Air On Passenger Side Welcome to CorvetteActionCenter. Decided to unbolt, unplug, and jostle the climate control module. A/C is controls are set to max air and max cold on the temp control. Turn engine backon. It's blowing warm on driver sid and cold on passenger side. Thanks for your help! Driver side hot, all the time either way. passenger side is fine. side actuator is sure would help. You currently have 0 posts. One side on hot one side on cold shut engine off. So I've noticed our 2004 rav4 is blowing cold air on the front driver side even when the engine is warm. com FREE DELIVERY possible on eligible purchases. Read on for free car A/C help when the air is blowing warm on ONE side. I brought it to my dealer who said they couldn't find a problem, which I found odd. the pass side knob works properally,. My 2005 Chevy Silverado with dual zone climate is occasionally blowing hot air on the driver's side and cool on the passenger. What can still be causing this pr. I had to use my defrost last night and today when I tried to use the AC, it blows hot air on the driver's side and cold air on the passenger side. com! You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. The thing that's crazy to me is. The drivers side still blows warmer than the passenger. I looked around and found that removing the (-) negative post for about 30 mins would fix this. Mine doesnt have auto feature though. The fans move the warm exhaust air from the rack mounted equipment through an air to water heat exchanger and transfers the heat to a water circuit before recirculating chilled air to the front of. Why is it doing this? Two shops have told me different things. My air condition blows hot air only on the drivers side for my 2015 RT. After replacement of a drained battery, the driver side AC circulates between warm, cool, and cold approximately every ninety seconds while the passenger side works properly. I have a side button for driver and passenger heat and cold air to adjust the temp. In our case I was pretty sure it was the passenger blend door actuator. That happened the last two mornings when it was about 75 degrees out. Take off that black kick panel thing, and it will be right there. The PSI of the system now, while running, is 45 PSI. We Make Things Move® A forward-thinking innovator, Bimba provides industry-leading pneumatic, hydraulic and electric motion solutions that are easy-to-use, reliable and ready for your engineering challenges. My 2005 Chevy Silverado with dual zone climate is occasionally blowing hot air on the driver's side and cool on the passenger. I have 2007 Acura MDX with ~168,000 miles and the front vents would not blow hot air (only cold air). Read on for free car A/C help when the air is blowing warm on ONE side. The potential reasons will be: 1. My drive home takes 30 to 45 minutes. The heater/radiator in my 2006 320i (E90) does not blow any hot air through any of the driver-side vents, but seems to blow OK on the passenger (left) side. The passenger side vent is fine but i can't figure out why the driver side isn't. Anywhere I put the dial the air is blowing as you would expect and it changes right away. I have a Jag xjs v12 86 TWR, that I am currently restoring I have checked some of the threads but wanted to ask a couple of questions about the heater side. Any idea what might be wrong? With this cold temperatures its hard to drive. Just like the title says, for the past month or so, the vents on the driver side have slowly been starting to lose heat, and have now started blowing cold air. My car has 85000 miles. Thanks for you help, I am tired of sweating in the Texas heat. Any ideas?. The driver side actuator is really easy to change. Thanks! 1 people found this helpful. The heater is only blowing cold air. Air conditioning system, when you turn on the air conditioner the drivers side blows cold air and the passengers side blows hot air? What causes this problem? The most common cause of this is that you have a stuck air temperature control blend door, this can be a motor actuator issue or a jammed door or both (common). Yesterday morning, the temp was about 72F, and AC was set at 75F(auto), so it started to blow hot air, when I drove for 15 minutes, outside temperature raised to 78F, then driver side blew cold air, but passenger side still blew hot air all the way till I arrived, no matter how I set. 18"/455mm locking clamp with regular tip with extended throat width. A/C is controls are set to max air and max cold on the temp control. Thousands in the Getty Fire burn were able to return home but several ramp closures along the 405 Freeway continued Wednesday as another Santa Ana wind event, possibly the strongest of the season. The driver side blows out warm air, just like vent. I took it in for an oil change (at GMC) and asked the guy to look at it. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Cordless Driver Kit 12V Includes 2 x 1. I have tried playing around with different settings and variations as advised by my mechanic but still the same. I switched the two actuators to see if one was bad, but the same thing happened. If the door doesn’t open, the cool air won’t get in. The drivers side still blows warmer than the passenger. Service center tried to blow me off with some BS about the position of the heater, farther away, crikey, you can tell the difference by feel, I mean one side is really HOT and drivers side is cool, absolutely no heat at all, and the center outlets are side by side so don't buy that distance crap. My car has a manual transmission. I have the heat turned on and it is hot in all types of settings but the floor on the passenger side blows freezing cold air all the time when on. So today I bought a new blend door actuator and attempted replacing the driver side actuator and NOTHING. temp gage is lo. Well, on my trip back up to college last night I discovered that my '06 Duramax's drivers side heat is not working. Originally Posted by jmackin mine does this from time to time. Turned climate control on auto. Our firm aims to operating faithfully, serving to all of our consumers , and working in new technology and new machine continually for Injection Stretch Blow Molding Machine, Energy Saving Blow Moulding Machine, Juice Filling Line, We sincerely hope to provide you and your company with a great start. r134a is insufficient. Check the driver's side actuator blend air motor to see if it opens and closes the blend door. What gives? I do not have dual temperature controls. That's doing the same thing. Randomly the driver's side A/C vents will 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. when it works it works good. The problem I met is that only passenger side blows out cool air. re: 2005 gmc sierra drivers side a/c blowing hot air Sign In FYI One of the replies sent along info saying to check if there was a wet spot under car after parking when using the a/cand the answer is: yes. After replacement of a drained battery, the driver side AC circulates between warm, cool, and cold approximately every ninety seconds while the passenger side works properly. While we understand that this is likely to be a temporary solution, it is still important to make sure that it is supportive and reliable enough to prevent any issues. My drive home takes 30 to 45 minutes. One side on hot one side on cold shut engine off. I tried setting the thermostat all the way down to 60 on the passenger side, it didn't make any difference. I'm not sure what to look for and i was hoping somebody could help me out here and give me some suggestions maybe. passenger side is fine. Average Rating. Randomly the driver's side A/C vents will blow hot air. It's underneath the passenger dash, where your feet go. No noticeable difference in the volume of air being blown, and all the vents are open. i do have dual control but dont know if they are working properally cuz of the problem im having. Had repairs done for the compressor and evacuator/drier replaced but same problem. However, if you turn the driver side control to low everything immediately starts working normally, you can then set the temp to any selection and both sides blow the same temp air. My car has a manual transmission. re: 2005 gmc sierra drivers side a/c blowing hot air Sign In FYI One of the replies sent along info saying to check if there was a wet spot under car after parking when using the a/cand the answer is: yes. You have two air mix control dampers; one for the driver's side and one for the passenger side that are independently controlled and operated by electric servo motors. Yesterday I Noticed that when I turned my ac on, it was blowing nice and cold on the driver side vents. The crash happened at Washington and Thornton Parkway. And the drivers side works as advertised with the other actuator installed. My air condition blows hot air only on the drivers side for my 2015 RT. Thanks in advance, Anudeep. very hot air blows on passenger side. checked under the hood that the valve appeared to be opening and closing with cable movement. The blend door is situated where hot and cold air enter the ducts for the vents, one on the driver side and one on the passenger side. Fixed the hot air issue. Bump on this, it seems my CCM only blows cold air when the dial is turned all the way to the left (COLD). I'm having the same problem. Just recently the driver side just started blowing warm air, to which I checked the rear vents in back and those are not blowing cold either, just the passenger side. Where is fuse panel in 2012 ford explorer xlt? looked everywhere just short of ripping off panels and carpet?. Some new car owners,think this is a heater core issue. Not sure if I missed something but waht was the solution to the HVAC blowing out the drivers side but warm/hot air coming out passenger side? THanks TS Common problem, you need to recharge your R134a ^. If it doesn't move, disconnect it from the door shaft and try to move the door manually. After reconnecting, everything worked as it should've. Jaw adjustment 0 - 8"/0 - 200mm. Intermittently the passenger side goes hot and driver stays cool. I have an '06 EXL V6 6mt with a similar driver side hot air problem, but no control problems. toyota forum at Car Dealer Forums; I recently had the dealership changed the air filter of my 2004 Sienna. AC blows hot one side that only the driver side was putting out hot air and the passengers cold when the heat was turned up on both sides. The blend door is not directing the proper temperature air to the passenger side. Well, on my trip back up to college last night I discovered that my '06 Duramax's drivers side heat is not working. Restart with both on cold problem fixed! Coputer needed to reset from battery being replaced. Even if you do not have dual-zone controls, there still may be two separate doors and motors to control the side separately. What can still be causing this pr. Driver side ac blowing hot air. Yesterday I Noticed that when I turned my ac on, it was blowing nice and cold on the driver side vents. They checked it and they told me that "the blower that distributes air is damaged. com FREE DELIVERY possible on eligible purchases. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Even with air-conditioning and temp set to low - my driver side blows hot air only. When in auto the system actually blows warm air up at the windshield, defrost mode I guess. Fan is not affected. 18"/455mm locking clamp with regular tip with extended throat width. I have replaced the blend door motor and the relay switches. I looked around and found that removing the (-) negative post for about 30 mins would fix this. It usually works fine for a few minutes before it begins blowing hot air. The heater is only blowing cold air. When I got my car back, the A/C of the driver side is just blowing hot air. After replacement of a drained battery, the driver side AC circulates between warm, cool, and cold approximately every ninety seconds while the passenger side works properly. Intermittently the passenger side goes hot and driver stays cool. Once it starts blowing heat, it seems to continue until I park for a while. anything above 64 or whatever the lowest setting is blows warm air. Originally this occurred on the driver's air vents. After multiple attempts to get the dealer to fix it they finally ran a series of sensor and calibration checks and told me it is working as designed. The center bottom is the blend door-- [mixes warm air and cold air] then the top actuator-- [believe that is the defroster mode] I doubt it is the blend door-- that would affect both sides. Even if you do not have dual-zone controls, there still may be two separate doors and motors to control the side separately. I had the same issue with my '16 EX-T. The hot/cold air motor is actually inside the HVAC system so we stuck a camera down it to see that it was working. still blowing warm air just an updatebrought the X for oil change and mentioned the problem with the a/c(again). My drive home takes 30 to 45 minutes. The passenger side vent is fine but i can't figure out why the driver side isn't. Same result every time, hot out of the passenger upper vents and cold out of the drivers upper vents. Buy Camco Blow Out Plug With Brass Quick Connect-Aids In Removal of Water From Water Lines (36143): Fittings - Amazon. The PSI of the system now, while running, is 45 PSI. I had my 2013 Escalade EXT in storage with the battery disconnected for a whole year and today when I put the battery back in the AC was blowing HOT air on the driver side and cold air on the passenger side no matter what settings I tried. I have no doubt it is the servo motor for the driver side as it has been clicking on and off for about 2 years now and just recently the noise had picked up. Looks like a recall needs to happen. The AC blows hot air on the driver side and cool on the passenger. A/C is controls are set to max air and max cold on the temp control. My car blows cold air out the driver side, I can't get heat out of it no matter what I do. My car has 85000 miles. When running the a/c on my 1996 STS, the two front drivers vents & rear vent blows hot air while the two passengers front vents blow ice cold. There are four actuators on the Climate Control-- one at the driver's side, one at the passenger side. Dual zone systems allow the driver and front passenger to adjust respective temperatures to their comfort levels. It does not matter what temperature setting is set. The aircon on the driver side of my near COE expiry car suddenly not blowing cold air. Along with NOT giving my car an oil change because they didn't have time, they also never looked at the A/C issue until I was there to pick up the car because I assumed it was ready. THORNTON, Colo. I had my 2013 Escalade EXT in storage with the battery disconnected for a whole year and today when I put the battery back in the AC was blowing HOT air on the driver side and cold air on the passenger side no matter what settings I tried. I have had this problem where the driver side vents blow out hot air (as hot as it can get, probably 85f) regardless of what the controls are set to (controls could be set to 60f and you will get cold air from the passenger side and hot hot air from the driver's side). Turned climate control on auto. I put all controls on properly and noticed that there is heat coming out of all vents on the drivers side but straight cold air coming from all passenger vents. A/C Blows Warm Air Out of Left Vents and Cold Air Out of Right CAR BLOWS HOT ON DRIVER SIDE COLD ON PASSENGER SIDE LINCOLN MKX. The cycle can last from 2-15 minutes. 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 was trying to cool down the car so I set the A/C to 65 degrees and it was working beautifully on the passenger side, but blowing very hot air on me. But on the passenger and rear vents its blowing normal air as if just the blower was blowing with no ac compressor. When a vehicle's air conditioner does not blow cold air, it may need to be recharged with freon. 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. Heat on passenger side and cold on driver side. Now its just not as cold. Thanks for your help! Driver side hot, all the time either way. When the heat is up to full (90 degrees), the air from the driver's vents is warm. r134a is insufficient. After reconnecting, everything worked as it should've. When running the a/c on my 1996 STS, the two front drivers vents & rear vent blows hot air while the two passengers front vents blow ice cold. I had to use my defrost last night and today when I tried to use the AC, it blows hot air on the driver's side and cold air on the passenger side. Brought it to the dealer bc I needed an oil change and told them about this issue. The blend door is situated where hot and cold air enter the ducts for the vents, one on the driver side and one on the passenger side. Lately, I noticed lately that the passenger side vents blow opposite air to what I intended to. still blowing warm air just an updatebrought the X for oil change and mentioned the problem with the a/c(again). I had to use my defrost last night and today when I tried to use the AC, it blows hot air on the driver's side and cold air on the passenger side. If the door doesn’t open, the cool air won’t get in. If the vehicle has a dual zone A/C, then the most common problem is a bad temperature door actuator. I have a Jag xjs v12 86 TWR, that I am currently restoring I have checked some of the threads but wanted to ask a couple of questions about the heater side. On the way home it was 90 and all of the vents blew cold as normal. I took it in for an oil change (at GMC) and asked the guy to look at it. My 06 LE blows atmosphere temperature air or cab air (if on recirculate) on the drivers side and hot on the passengers side when I have the heat on. After shutting off the engine and restarting, the A/C worked fine. SOURCE: Blows warm air on drivers side, cold on passenger side Hello,I work on these cars and have issues w/ this in the past.