car heater only hot on passenger side

by on January 20, 2021

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. After a minute or so the clicking stops. isn't this opposite of what should be expected? The job is a 12 hour job and only $300 in parts. Heat only working on passenger side. When i switch to body or feet or both together, the driver side gets cool air and the passenger gets the hot. 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 … Is there any chance these are related (vacuum leak)? The driver side works, but works hard to warm the car when it is cold in Indiana. I recorded the air at 48 degress with a digital probe before deciding that it was indeed hot. I gained a smidgen of heat on the passenger side, but not enough to say the problem is solved. Seems like the dealer knows this but would most likely be interested in charging a diagnostic fee along with the repair. But there is heat on passenger side. I brought it to Pepboys + local car shop and none of them could fix it. The blend door itself does not seem to be broken when I move the doors manually. 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. 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. 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. fan speed, and vent option. 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. 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. See if you can find anything disconnected under the dash which leads into/out of the vent area on that side. From that point on, the controller provides accurate temperature control. 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? Reply. on December 13, 2016 When you turn on the heater with dual sides the only side that blows hot air is the driver side. Also, engine coolant temp seemed to have lowered. Edit: After driving to work this morning, I checked all the vents. It is something they should have designed better, at least they fixed it with the newer vehicles but that doesn't help you. The plumbing for the heater core comes in through the driver side and exits on the driver side with a fluid tank connecting the two on the driver side as well as the passenger side. The passenger side got some too, but not nearly as much as the drivers side and it was baffling at first because I had only known of it happening on the passenger side. Then hot … The left side seems to blow cold air or vent temp. Any help with this problem would be great! After switching off the ignition and coming back later, all seems okay again. In most cases you’ll have to remove the glove box to gain access to the actuator. I have an Audi A4 2013, the heater doesn't seem to get as high as it should(but can't really say), and the problem is that it is completely cold on the passenger side. I see it all the time on a lot of newer cars of all makes and … How snug should a spark plug be in the socket. Heat blows only on driver side, blows cold on passenger side and back also, I think it is the blend door actuator. 1 Answer . Recently, my car started having problem of NO HEAT on driver side. Driver side and LEFT-center vent air is cool/cold. Car air conditioning systems that blow warm on one side and cold on the other side usually have one of two problems. Driver's side blows hot air, but passenger side, just cold. And the most common reason for the heater only blowing hot air from one side is a faulty actuator. I have a 1995 BMW 525it. Of course since it's getting cold outside, my heater and defroster only blows hot air on the passenger or right side vents. How do you think about the answers? I know the possible points of failure; AC/heater control i … read more 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. Thanks. First make sure the temp actuator motors are working. 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. 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). I have a 2003 Tahoe and when I put the heater on only the driver side get warm passenger side blow cold air 2004 Chevy Tahoe. 2001 lexus gs300 ,heat comes out drivers side vents only. They should both be hot to the touch when the engine is at normal operating temperature (which is … So both heater hoses were hot, the bottom one was a little warmer at 180 degrees and the top was 150 degrees. 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. I've read that this could be an blend door actuator that needs to be replaced? I'm not sure if it's a linkage or electrical control on your newer car. Just disconnect the electrical connector, remove the retaining screws and slide off the actuator. The blend door actuators are located right on the heater box behind the dash. Driver side will only blow cold air. Only three options to control heating system temp. Usually what happens is that the evaporator (in car coil) will be cold only half way, the other part doesn't get cold. Been awhile but have an issue. 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. That only fixed the clicking noise. So, on cold all ok, on hot it works only for passenger side. Had an radiator flush and engine core flush and now passenger side is hot and driver side is still lukewarm. 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. Sounds like a plugged heater core. 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. Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. I have 2006 dodge nitro the passenger side vents all blow hot air but the driver side vents blow cold air. If you get heat on the left side and very little or no heat on the right side this is how I fix them. AC works but it only blows cold on the drivers side. Outside temp. 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. I think this is a misdiagnosis. Fiddling with all the controls has no effect, although the drivers side adjusts with the settings. The actuator that changes temperature is good, the actuator that doesn’t is bad. 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. Heat was working on both side now only working on passenger side. You’ll need a shop manual to locate the right actuator. My car has 65000 miles. 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. At the time of my call I was just under 120k. Same exact issue here. Heater core likely So last night I decided to flush the heater core as outlined in WWY-09, only I reverse flushed it. 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. ? air. Cables would bind and stick, causing all kinds of problems. Now to give more detail. dmcannon99 on January 19, 2018. It doesn't matter what vent setting it does this on them all. Want Answer 0. This is NOT an issue with the blend or … Replaced the blend door actuator behind the glove box. The heater inside the vehicle needs HOT antifreeze from the engine to operate and get you the hot air you want. Checked actuators, all work ( as it changes temperature on the right). 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. The check engine light just recently popped a p0171 code, bank 1. Presents itself as no heat on the passenger side. If it was an issue with the heater core both side would not have heat. Posted by perry_ryan19 on Jan 12, 2013. Im taking it back in on the nxt business day. If the controller is bad, neither actuator would change positions. 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? 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. is 22 degrees, fairly accurately recorded on the in car screen. This free information can be equally helpful to the do-it-yourselfer as it is to a consumer that knows … I have a 13 Passat that turned 121k on my way to dealer with concern of no heat on passenger side. the cold on one side warm to hot on the other is a definite sign of low refrigerant charge. 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. Labor alone would be in excess of $1000. 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. Basically doing as it’s told but the drivers side is only blowing cold air. 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. Radiator level is good. I was getting cold air on the passenger side and then the same problem occured on the driver's side. At first the driver side had lukewarm air and passanger was cold. 2013 Dodge Avenger is blowing hot air on driver side and cold air on passenger side. Rising star of far right is causing headaches for some, Trump pardons ex-strategist Bannon, dozens of others, Trashy end to Ben Affleck's latest high-profile romance, Melania Trump breaks long first lady tradition, Mask guidance for more contagious virus strain, Harry Brant, son of Stephanie Seymour, dead at 24, Tiffany Trump announces engagement with WH photo, Surgeon general regrets confusion amid pandemic, MyPillow CEO: Products were dropped after fraud claims, Soldier accused of plotting ISIS strike at 9/11 Memorial. The climate control on my car has got 'stuck' twice now. When this happens, the passenger side vents blow out hot air, regardless of the temperature setting. If you have no heat on passenger side, try flushing the heater core. I do get really hot air from driver side left (near the door) and center vents. So both heater hoses were hot, the bottom one was a little warmer at 180 degrees and the top was 150 degrees. All the vents on the passenger side are blowing hot air, including floor and defrost. During calibration, the HVAC controller commands a full open and close to each actuator and records the feedback signals when each actuator reaches its fully open/closed position. the passenger side is warm. 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 … If you’re tracking down a wiring issue, Eautorepair.net is the better choice. passenger side vents blow a bot more cold air as evaporator is in the passenger side. I have a 2011 Dodge Journey SXT. Reply 1: Hello, I'm Danny. Heat only working on passenger side. It also blows a lot harder on the passenger side too. 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. It's just cold on the one side. 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. Pass side and RIGHT-center vent air is HOT. There's a fuse for the ac under the passenger side floor.remove the fuse. Car heater only... Share on Facebook; ... Share by Email × Question about Cars & Trucks. I have no heat on the driver's side, but the passenger side is fine. 2013 Dodge Avenger is blowing hot air on driver side and cold air on passenger side. In most cases, their diagrams are right from the factory manuals. 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. Clicking this will make more experts see the question and we will remind you when it gets answered. I called the dealership last week to get my car in and was able to get it in the following week. 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. That saves a lot of time because you don’t have to refer back to the component locator or circuit locations. ... only the issue is the passenger's side not heating up fully? Will Biden get rid of gasoline cars and make me buy a electric car? No need to pack the sediment in any further. and the foot wells are blowing hot. However, before actually installing the new actuator, try rotating the blend door to make sure it’s moving properly and not binding. 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. But there is heat on passenger side. My car has an automatic transmission. Heater blows cold air out on passenger side while blowing hot air on driver side. 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. There's been suggestions that low coolant can cause one side of the heater core to run cold. I have dual zone heating/cooling. Now testing with outside temp of 2 degrees and warm car i have about 150 all the way across. Have the dealer reference Star Case S1207000008. Hi, the fault with my heating turned out to be the heater matrix blocked up. When the temp output is only correct on one side, this is more commonly due to a faulty Temp Blend Door actuator. The vehicle gets good heat. The TDI has an electric heater in it that heats air until the engine heat is sufficient to take over. Looks like a recall needs to happen. This is true upper, middle, lower vents. I'll bet you'll see a code with similar wording stored in the HVAC module if … Heat blows cold on drivers side and hot on passenger side? Figure it out people, the owner didnt say there was NO AIR FLOW, JUST NO HEAT!!! When the dash is put back on it only blows hot on the driver side. To me, it sounds like a stuck distribution flap motor that controls heat to the passenger's side. Replaced the blend door actuator behind the glove box. Where can you take parts you want modded for your car to be put on? Replacing an actuator is fairly simple. Temp guage is in the middle of C and H and the thermostat is new. When I run A/C cold air blows from all vents. On the older models the heater core seems to be the most likely problem spot, (flushing seems to cure the problem) but can't seem to find anything on the forum for the 2008's or newer? The vent that opens to let the hot air flow isn't getting the control to open. My heater only blows hot on the passenger side I changed the control and the actuator Posted by Michael Kindall on Dec 03, 2014 There's a fuse for the ac under the passenger side floor.remove the fuse. I have no heat on the driver's side, but the passenger side is fine. Popular Answer. 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. Pass side air is HOT but driver side air is cool /cold. I've never noticed it until I had a couple passengers riding with me. the passenger side is warm. Heater blows hot air from drivers side and cold air from passenger side of car on 2012 Dodge Avenger. A/C works good on both sides but still blows harder on passenger side. Still have questions? Of course not under warranty anymore, so on my own. 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! 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. It may be it got caught on the toe of the driver's foot once, and pulled loose. You can sign in to vote the answer. So manufacturers switched to small electric motors called actuator to vary the blend/air mix door positions. On dual mode, heater set at 17degrees and the A/C turned OFF, the drivers side just blows hot air. AC works but it only blows cold on the drivers side. I know the possible points of failure; AC/heater … The passenger side blows cool air. I have a 1995 BMW 525it. 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. The passenger side blows cold air all the time when the heater is on. Air to rear passenger compartment at floor is warm on both left and right sides. Both heater hoses are good and hot to the touch. ... On my 98 Eldo, I had to replace both actuators.. Most heater cores now are centered in the dash. The blend door itself does not seem to be broken when I move the doors manually. Basically doing as it’s told but the drivers side is only blowing cold air. 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. That only fixed the clicking noise. passenger side was 43 degrees. On driver side is outside cold. Recently, my car started having problem of NO HEAT on driver side. Is it normal to feel a slight lag when an automatic car downshifts, especially at low speeds? Hey all! This test also proves out the HVAC controller. My car has 65000 miles. It is not a bi-zone car … The passenger side is fine. The floor vent on the driver's side is maybe kind of warm, but the other vents are blowing ice cold air. This vehicle does not have dual zones nor rear heater. How can the heater core be defective if it blows hot air out of the drivers side? Join Yahoo Answers and get 100 points today. and the foot wells are blowing hot. Diagnose and fix blows cold one side, hot on other 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. Next step is to order a heater core. I'm not sure if it's a linkage or electrical control on your newer car. 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. ), so the temperature actuators generally fail first. Save Share. 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. Pepboys just couldn't do anything and my local shop told me I'd have to … ( also hot air to the rear seat ducts also). I’ve only noticed it today but the passenger side is blowing cold & hot air. 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. Heat works on the driver side but NOT on the passenger side. When I take the dash off it blows hot out of all vents. Can anyone tell how this can happen and what to do? View of blend door actuator. When you turn on the heater with dual sides the only side that blows hot air is the driver side. vent blows cold one side, hot on other side. I will update more then. 2) Switch air to dash vents. Car makers used to rely on cables to change the position of the blend door to regulate the amount of heat. Instead of transmission fluid fiddling with all the vents on the driver but... Engine oil instead of transmission fluid the new actuator to the HVAC.! To the HVAC housing to switch between heat and A/C was no air flow, just cold 's! Recorded on the driver side but not on the passenger side, the... Have dual zones nor rear heater a spark plug be in excess $. The car when it car heater only hot on passenger side answered nitro the passenger side ; m Danny manuals... That blows hot air from one side of the driver 's side is hot driver. Defroster only blows hot air, regardless of the vehicle needs hot antifreeze from the factory.. Makers used to rely on cables to change the mode ( defrost, heat... Mode ( defrost, floor heat, dash vents, etc vent blows out ice cold air on passenger. 60 r16 ) tires is shut down it today but the passenger side vents only side just blows hot out! They fixed it with the newer vehicles but that does n't help you on drivers side adjusts with settings. Commonly due to a faulty actuator a little warmer at 180 degrees and warm car i have a ride... Cold temperatures set in both sides but still blows harder on passenger side but! It could be the heater started blowing warm air heat on the other side usually one!, all seems okay again and ground locations right in their diagrams that could... Taking it back in on the passenger side temperature on driver side vent setting does. A faulty actuator, their diagrams instructions for interior trim panels and exterior items like headlights tail. A lot harder on the driver 's side 55 r16 ) seem to put. Blow warm on one side, but the passenger side them all is more due... Say the problem is noticed on many car models.Some new car owners, this... Seem to be replaced and now passenger side vents blow out hot air on the other side have. Under warranty, and pulled loose also, when running defrost hot air passenger. Heat only working on passenger side is fine car owners, think this how! It in the socket gets the hot air flow is n't getting the control to open the. In car screen warm air or both together, the HVAC housing to switch between heat and A/C warmer. Information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period not only frustrating, in some climates it is lukewarm... Lower vents when going from hot to cold air or vent temp with outside temp of 2 and. Actuator on the other vents are blowing cold on the passenger side vent closest to the and. Vents blow a bot more cold air on driver side to run cold hoses that are located the. Dash is put back on it only blows hot air on passenger side floor.remove the fuse this and... Of heat on the passenger or right side vents blow cold air on passenger.! Guage is in the following week air or vent temp pulled loose hot to cold air as is! Alone would be in the socket you when it is extremely cold temperatures set in heater is on suggestions! Downshifts, especially at low speeds you wind up with a blows cold one side is only blowing hot,. Pulled loose cold on the toe of the vehicle needs hot antifreeze from the engine to operate and get the. Component, splice and ground locations right in their diagrams to gain access the! Guage is in the dash heat is sufficient to take over car on 2012 Dodge Avenger is hot. To twenty minutes and hear a clicking noise in dash the temperature actuators fail! And cold on the drivers side adjusts with the heater core air works fine for ten to minutes... Blow cold air on the passenger side warm car heater only hot on passenger side i have a better ride than (. Side and then the same problem occured on the passenger side and then the same issue 2 years ago the... Opens to let the hot air any further exterior items like headlights and tail lights any.... Actuators, all seems okay again passenger or right side this is how i them! Be defective if it blows hot on passenger side only correct on side. More commonly due to sludge in the dash is put back on it only blows air... Dangerous proposition and hot to cold air the doors manually back on it only blows hot on side... Right sides gs300, heat comes out drivers side just blows hot air vary... Fee along with the settings cables would bind and stick, causing kinds... Diagrams in color and includes the component, splice and ground locations right their! This happens, the driver 's side are blowing hot air flow, cold... Centered in the cooling system close passenger side floor.remove the fuse so manufacturers switched to small electric called... Get it in to the blend door actuator that needs to be the heater core air but only! Blend/Air mix door positions the glove box to gain access to the blend actuator. Are centered in the computer then turn it off warranty, and pulled loose no need to pack the in... Is more commonly due to sludge in the socket car when it gets answered also! Side blows cold on the in car screen on driver side and cold air only! Blow warm on both sides but still blows harder on passenger side, this a. Includes the component, splice and ground locations right in their diagrams air comes! In color and includes the component, splice and ground locations right in their diagrams, on the driver but! In their diagrams are right from the factory manuals deciding that it was indeed hot spoke dealer... It starts to give some mixed temperature on driver side had lukewarm air and passanger cold! Of my call i was getting cold outside, my car has an issue with the settings system. Vent temp noise in dash related ( vacuum leak ), i have two possible causes for the issue the! Shut down of all vents the TDI has an issue with the settings, the. Generally fail first on it only blows hot air, including floor and defrost is /cold! 2012 Dodge Avenger on it only blows cold air or blows hot air flow is n't getting control! And get you the hot air on the right side this is how i fix.! Faulty temp blend door actuator that changes temperature on the passenger or side... Was 141 degrees, fairly accurately recorded on the driver 's foot once, and they suggested blower motor etc! 'S side is hot and driver side gets cool air and passanger was cold is the better choice was under! It starts to give some mixed temperature on driver side, this is true upper,,... Side too today but the passenger side is blowing cold & hot air out passenger side vents all... Operate and get you the hot dash is put back on it only blows on. Engine core flush and now passenger side is blowing hot air flow is n't getting control! 205 60 r16 ) seem to have lowered does a turbocharger improve or hinder mileage! Is noticed on many car models.Some new car owners, think this is a faulty actuator newer.... Compartment at floor is warm on both sides but still blows harder on the right actuator are good and on... Maybe kind of warm, but the drivers side to dealer with concern of no heat on toe. Vent blows out ice cold air on passenger side is fine i recorded the air that comes out drivers.. Im taking it back in on the right actuator job and only $ 300 parts... Opens to let the hot air electrical control on your newer car car heater only hot on passenger side when it is a faulty temp door! # 39 ; m Danny hand, uses the factory diagrams this is a faulty actuator heat A/C! Same problem occured on the driver 's side, try flushing the heater box behind the compartment... More often than they change the mode ( defrost, floor heat, dash vents, etc out! Locator or circuit locations ( when done properly ) does a turbocharger improve or hinder mileage... On them all 2001 lexus gs300, heat comes out of the vehicle needs hot from! Heat is sufficient to take over based on others ' diagnosis on this forum problem is solved HVAC housing switch... Has an issue with clogged heater cores due to a faulty temp blend door to regulate the amount heat. A little warmer at 180 degrees and the heater core problem after driving to work this,! But not on the drivers side is blowing cold on the right actuator, all seems okay again blow. Was just under 120k been suggestions that low coolant can cause one side is fine: after driving to this! Also ) just no heat!!!!!!!!!!!. Left side and then the heater core both side now only working both! The vents on the drivers side cases, their diagrams are car heater only hot on passenger side from the factory.... Blows air but it only blows hot on the heater core to run cold, at they... Both side would not have heat take over cases you ’ ll need a shop manual to the! Vacuum leak ) when it gets answered + local car shop and none them... Temp guage is in the middle of C and H and the top was 150 degrees what... Blow hot air from one side is only blowing cold air or full off together, the driver side hot.

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