So both heater hoses were hot, the bottom one was a little warmer at 180 degrees and the top was 150 degrees. If it was an issue with the heater core both side would not have heat. How snug should a spark plug be in the socket. i have a 2005 monte carlo and when i turn the heater on it blows cold air on one the driver side and hot on the passenger.. can anyone tell me what could this problem be...because it will be getting cold pretty soon and i will need a heater Popular Answer. However, before actually installing the new actuator, try rotating the blend door to make sure it’s moving properly and not binding. There's been suggestions that low coolant can cause one side of the heater core to run cold. Most heater cores now are centered in the dash. Pricing: ---Eautorepair.net--- 1 month subscription $19.95 per vehicle 1-year subscription $29.95 per vehicle 4-year subscription $44.95 per vehicle ---Alldatadiy.com--- 1-year $29.95 subscription: additional vehicles $19/95 each 5-year $49.95 subscription: additional vehicles $34.95 each Which one should YOU choose? Any idea? and the foot wells are blowing hot. To me, it sounds like a stuck distribution flap motor that controls heat to the passenger's side. Eautorepair.net redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams. Is a new roof system going to be expensive? There seems to be a common problem on the S-Types where the water valve sticks shut which causes this problem, but I can't locate any such valve on the XJ. This car has an issue with clogged heater cores due to sludge in the cooling system. I asked my friend who is one of the head mechanics at Holden here in Adelaide and he says it is a broken heater flap in the dash and that they repair them all of the time. Car makers used to rely on cables to change the position of the blend door to regulate the amount of heat. I'm not sure if it's a linkage or electrical control on your newer car. Temp guage is in the middle of C and H and the thermostat is new. Also, engine coolant temp seemed to have lowered. ... On my 98 Eldo, I had to replace both actuators.. is 22 degrees, fairly accurately recorded on the in car screen. (When done properly) does a turbocharger improve or hinder gas mileage? Heater core likely So last night I decided to flush the heater core as outlined in WWY-09, only I reverse flushed it. The heater is working on the drivers side and the passenger side blows cold air. Usually what happens is that the evaporator (in car coil) will be cold only half way, the other part doesn't get cold. The blend door actuators are located right on the heater box behind the dash. If you notice your car isn’t getting as warm as you’d like, or the heater never actually kicks in, make sure to take your car … I have a 2011 Dodge Journey SXT. ac blows hot fix by: Jshowtime I have had the same problem and there is a simple fix.it is correct to say the diverted gets out of sync. I have a 2011 Dodge Journey SXT. Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. If you have no heat on passenger side, try flushing the heater core. This problem is noticed on many car models.Some new car owners,think this is a heater core issue.But its not heater core problem. In a dual zone system, you wind up with a blows cold one side, hot on other side condition. There seems to be a common problem on the S-Types where the water valve sticks shut which causes this problem, but I can't locate any such valve on the XJ. Reply. My 2015 Nissan Rogue blows out hot air on the passenger side of my car. Wife drives it … This is NOT an issue with the blend or … My car has an automatic transmission. Most of the time, because of the location of the inlet/outlet hoses, the leaks still appear on the passenger side or in the engine compartment. When the heater is on, I have cold air blowing on the drivers side and hot air on the passenger side. ), so the temperature actuators generally fail first. vent blows cold one side, hot on other side. I will update more then. When I take the dash off it blows hot out of all vents. passenger side cold air only, car has dual controls but acts like heat flapper not opening your blend door on your passenger side is most likely stuck in the cold position. isn't this opposite of what should be expected? Nice and hot. They should both be hot to the touch when the engine is at normal operating temperature (which is … However, Alldatadiy.com also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. I have a 1995 BMW 525it. It just blows cold on the passenger side. I know this thread is a bit old, but I am experiencing the same problem as mentioned above (E90 2006 320i), driver side cold-ish air only, passenger side hot air when both sides are set at 28oC. The floor vent on the driver's side is maybe kind of warm, but the other vents are blowing ice cold air. Driver's side blows hot air, but passenger side, just cold. Clicking this will make more experts see the question and we will remind you when it gets answered. I've never noticed it until I had a couple passengers riding with me. Have the dealer reference Star Case S1207000008. Alldatadiy.com, on the other hand, uses the factory diagrams. Pepboys just couldn't do anything and my local shop told me I'd have to clean out the system which he did with water-hose. You can sign in to vote the answer. Obviously this is a dodge issue judging by the pervious answers. View of blend door actuator. Is there any chance these are related (vacuum leak)? It may be it got caught on the toe of the driver's foot once, and pulled loose. I’ve only noticed it today but the passenger side is blowing cold & hot air. the passenger side is warm. AC works but it only blows cold on the drivers side. My car has 65000 miles. Outside temp. A shop manual will also provide the test procedure and wiring diagram for your particular vehicle if you want to test the actuator before replacing it. I have no heat on the driver's side, but the passenger side is fine. Heater blows nice and hot on driver’s side and small backseat vents (on back of armrest) BUT blows nothing but COLD air on passenger side. It's getting good heat out of the passenger side while the drivers side blows cool. How do you think about the answers? 2) Switch air to dash vents. Figure it out people, the owner didnt say there was NO AIR FLOW, JUST NO HEAT!!! But there is heat on passenger side. No need to pack the sediment in any further. I had the same issue 2 years ago to the day that they had replaced the heater core! After switching off the ignition and coming back later, all seems okay again. Then hot … So manufacturers switched to small electric motors called actuator to vary the blend/air mix door positions. Turn the ignition on so it registers in the computer then turn it off. Unfortunately, they probably won't fix it because your car is a 2011 and it's 2018 and the heater core was only covered under the basic 3 year 36K mile warranty not the 5 year 100K mile powertrain warranty. I have a 2005 Impala and my heater only blows on the passenger side the driver side vents don't even get hot at all. I've noticed a couple days ago that I have freezing cold air blowing out of the vents on the passenger side of the car! passenger center was 87 degrees. The vehicle gets good heat. it might be the vent on the drivers side. Re: Passenger side heater blowing hot only Post by stephen_downey » Mon May 07, 2018 6:05 pm There have been a few people mention resetting the actuator by the pollen filter for your model as a cure for this problem. So your first step in diagnosing a blows cold one side, hot on other side condition is to operate each temperature control to see which side changes temperature. Since the weather has dropped and the morning heater is on I have notice and confirmed, that only the hot air is coming out of the passenger side. air. It's just cold on the one side. Car heater only blows hot air out passenger side. Refer to the shop manual to learn the actuator calibration procedure. See if you can find anything disconnected under the dash which leads into/out of the vent area on that side. Air to rear passenger compartment at floor is warm on both left and right sides. Pepboys just couldn't do anything and my local shop told me I'd have to … Same exact issue here. Changed the Heater Core, checked all the Actuators, even manually moved the blend door mechanically to full hot still no heat on the passenger side. I drove it today for about an hour with it set to high on auto, I felt the drivers side and it was blowing cold and I felt the passengers side and it was blowing hot. And the most common reason for the heater only blowing hot air from one side is a faulty actuator. fan speed, and vent option. At first the driver side had lukewarm air and passanger was cold. the passenger side is warm. IIRC it only heats air in the drivers side, so if the heater core is not functioning and letting hot water through, it would prevent it from providing the normal heat and the cold incoming air would be blown out all vent that are upstream of the electric heater. I recorded the air at 48 degress with a digital probe before deciding that it was indeed hot. Can anyone tell how this can happen and what to do? The blend door itself does not seem to be broken when I move the doors manually. Driver side will only blow cold air. Posted by perry_ryan19 on Jan 12, 2013. Cool Automotive Products and Tool Recommendations, Vent blows cold one side, hot on other side, Read AUTO REPAIR ARTICLES sorted by topic, Custom Wordpress Website created by Wizzy Wig Web Design, Minneapolis MN. The check engine light just recently popped a p0171 code, bank 1. The passenger side blows cool air. If you’re tracking down a wiring issue, Eautorepair.net is the better choice. The blend door itself does not seem to be broken when I move the doors manually. On dual mode, heater set at 17degrees and the A/C turned OFF, the drivers side just blows hot air. When this happens, the passenger side vents blow out hot air, regardless of the temperature setting. ac blows hot fix by: Jshowtime I have had the same problem and there is a simple fix.it is correct to say the diverted gets out of sync. Reply 1: Hello, I'm Danny. Sounds like a plugged heater core. As far as I can tell there is one heater core that has one in and one out pipe, both of which get hot to touch. The TDI has an electric heater in it that heats air until the engine heat is sufficient to take over. I took it in to the dealer, as it is still under warranty, and they suggested blower motor. All the vents on the driver's side are blowing cold air. Looks like a recall needs to happen. 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. Replacing an actuator is fairly simple. Basically doing as it’s told but the drivers side is only blowing cold air. The driver side works, but works hard to warm the car when it is cold in Indiana. I brought it to Pepboys + local car shop and none of them could fix it. It may be it got caught on the toe of the driver's foot once, and pulled loose. When the dash is put back on it only blows hot on the driver side. It doesn't matter what vent setting it does this on them all. 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I will never buy another Nissan vehicle! as for your cold air i would remove the cover on the passanger side foot well and centre console and get your eyes up and look up the side of the console, then you can see the motors moving, the hot and cold air one is the lowest if i remember, but play with the selectors and you should see the … My heater only blows hot on the passenger side I changed the control and the actuator Posted by Michael Kindall on Dec 03, 2014 ? I gained a smidgen of heat on the passenger side, but not enough to say the problem is solved. Heat works on the driver side but NOT on the passenger side. That only fixed the clicking noise. Hi, the fault with my heating turned out to be the heater matrix blocked up. This is a small servo that turns the door internal of the HVAC housing to switch between heat and A/C. The passenger side vent closest to the window and floor vent blows out ice cold air while the driver side is nice and toasty. I brought it to Pepboys + local car shop and none of them could fix it. The heat worked for me during the winter, but now that it's hot I tried using the AC and it is only blowing out of the passenger side. Heat works on the driver side but NOT on the passenger side. Hot air on all of the defrost vents. When going from hot to cold air on passenger side hear a clicking noise that continues even when car is shut down. Basically doing as it’s told but the drivers side is only blowing cold air. If they are working next, I add a good cooling system flush additive and take the car for a drive making sure it gets up to normal operating temp. I know the possible points of failure; AC/heater control i … read more Just disconnect the electrical connector, remove the retaining screws and slide off the actuator. It is something they should have designed better, at least they fixed it with the newer vehicles but that doesn't help you. Heat blows only on driver side, blows cold on passenger side and back also, I think it is the blend door actuator. AC blowing hot on driver side, cold on passenger side. I'm not sure if it's a linkage or electrical control on your newer car. That saves a lot of time because you don’t have to refer back to the component locator or circuit locations. Heat blows cold on drivers side and hot on passenger side? My car has 65000 miles. When i switch to body or feet or both together, the driver side gets cool air and the passenger gets the hot. The passenger-side blows air but it is extremely cold. 2013 Dodge Avenger is blowing hot air on driver side and cold air on passenger side. If I turn off dual mode it blows hot on both sides, possibly a tad cooler on the passenger side, but that could be my imagination. I drove it today for about an hour with it set to high on auto, I felt the drivers side and it was blowing cold and I felt the passengers side and it was blowing hot. So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. Hey all! Cables would bind and stick, causing all kinds of problems. If the controller is bad, neither actuator would change positions. This vehicle does not have dual zones nor rear heater. I'll bet you'll see a code with similar wording stored in the HVAC module if … The actuator that changes temperature is good, the actuator that doesn’t is bad. Okay so this pesky service engine soon light comes on and off sometimes when I'm driving but the car is fine, so what is going on? How can the heater core be defective if it blows hot air out of the drivers side? Get your answers by asking now. I'm not sure if it's a linkage or electrical control on your newer car. Will Biden get rid of gasoline cars and make me buy a electric car? Recently, my car started having problem of NO HEAT on driver side. Any help with this problem would be great! After a minute or so the clicking stops. Presents itself as no heat on the passenger side. When I run A/C cold air blows from all vents. I’ve only noticed it today but the passenger side is blowing cold & hot air. maybe the door is,nt opening. This situation can be caused by a bad blend door (also called air mix) actuator, a broken or binding blend/air mix door, broken linkage to the blend/air mix door, or a faulty HVAC control head or wiring harness. Still have questions? 1 Answer. Any thought or suggestions will be greatly appreciated. The passenger side is fine. Drivers changed air temperature far more often than they change the mode (defrost, floor heat, dash vents, etc. I have two possible causes for the issue based on others' diagnosis on this forum. Only three options to control heating system temp. If the actuator fails, it usually fails in full on or full off. There's a fuse for the ac under the passenger side floor.remove the fuse. When the temp output is only correct on one side, this is more commonly due to a faulty Temp Blend Door actuator. Blend and mode door actuators have a feedback position sensor inside to report back to the HVAC controller so it knows that the door has actually moved to the properly position. First make sure the temp actuator motors are working. and the foot wells are blowing hot. Now to give more detail. This is true upper, middle, lower vents. Not allowing the coolant to flow through the core. On driver side is outside cold. Save Share. The passenger-side blows air but it is extremely cold. This is why when the core develops an air pocket, it is always the driver side that gets hot and the passenger side stays cold. See if you can find anything disconnected under the dash which leads into/out of the vent area on that side. If you get heat on the left side and very little or no heat on the right side this is how I fix them. Pass side and RIGHT-center vent air is HOT. I do get really hot air from driver side left (near the door) and center vents. Heat only working on passenger side. 1 Answer . Spoke with dealer and they thought it could be the heater core. However, if the AUTO climate control was turned on for AC, cold air came out the driver side and hot air came out the passenger side. You’ll need a shop manual to locate the right actuator. I think this is a misdiagnosis. Changed the Heater Core, checked all the Actuators, even manually moved the blend door mechanically to full hot still no heat on the passenger side. The vent that opens to let the hot air flow isn't getting the control to open. Car has about 105,000. I recorded the air at 48 degress with a digital probe before deciding that it was indeed hot. It also blows a lot harder on the passenger side too. In most cases, their diagrams are right from the factory manuals. The passenger side blows cold air all the time when the heater is on. Join Yahoo Answers and get 100 points today. More coolant, and the heater started blowing warm air. Recently, my car started having problem of NO HEAT on driver side. Car air conditioning systems that blow warm on one side and cold on the other side usually have one of two problems. Edit: After driving to work this morning, I checked all the vents. They include wiring diagrams and technical service bulletins. I have a 1995 BMW 525it. As far as I can tell there is one heater core that has one in and one out pipe, both of which get hot to touch. Can you clean under the hood by just wiping off the dust with a damp rag / damp paper towels? I read this post and flushed my heater core. It is likely a problem with the heater core, which may be resolved (at least temporarily) by a good reverse flush (which may take several tries to get the gunk out). So, on cold all ok, on hot it works only for passenger side. AC works but it only blows cold on the drivers side. passenger side vents blow a bot more cold air as evaporator is in the passenger side. The dealer will charge about $2200 to do the job as it entails replacing the radiator, heater … Is it normal to feel a slight lag when an automatic car downshifts, especially at low speeds? When you turn on the heater with dual sides the only side that blows hot air is the driver side. Heat only working on passenger side. Replaced the blend door actuator behind the glove box. So both heater hoses were hot, the bottom one was a little warmer at 180 degrees and the top was 150 degrees. I have no heat on the driver's side, but the passenger side is fine. The vent that opens to let the hot air flow isn't getting the control to open. I was getting cold air on the passenger side and then the same problem occured on the driver's side. If I close passenger side vents, it starts to give some mixed temperature on driver side. Both heater hoses are good and hot to the touch. At the time of my call I was just under 120k. 2013 Dodge Avenger is blowing hot air on driver side and cold air on passenger side. In a vehicle with dual temperature controls you may encounter a situation where the vent blows cold one side, hot on other side or vice versa. See if you can find anything disconnected under the dash which leads into/out of the vent area on that side. ? There's a fuse for the ac under the passenger side floor.remove the fuse. Thanks. Fiddling with all the controls has no effect, although the drivers side adjusts with the settings. A/C works good on both sides but still blows harder on passenger side. Pass side air is HOT but driver side air is cool /cold. Turn the ignition on so it registers in the computer then turn it off. 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 blower fan. I have 2006 dodge nitro the passenger side vents all blow hot air but the driver side vents blow cold air. It may be it got caught on the toe of the driver's foot once, and pulled loose. Feel the two heater hoses that are located under the hood on the passenger side of the vehicle. Having a car that doesn’t warm up is not only frustrating, in some climates it is a dangerous proposition. my lower profile tires (205 55 r16) seem to have a better ride than my (205 60 r16) tires. In this short auto repair article, a master automotive technician shares his experience, derived from working on air conditioners in Florida for the last couple of decades. Also, when running defrost hot air works fine for ten to twenty minutes and hear a clicking noise in dash. Just cold my 98 Eldo, i have cold air more coolant, and pulled loose day! There 's a linkage or electrical control on your newer car have a 13 that..., uses the factory diagrams at 48 degress with a blows cold on passenger... 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