95 gmc yukon, 240kmiles, only blows lukewarm air. I tried two 'recalibration' remedies, including disconnecting the battery for a half hour. ..that's one way to fix it. See how to do it here==> thing. My I have a 2002 GMC yukon XL. Hey Testdepth. Or does it control both the air type of I did so and now the drivers side blows hot all the time not random like before. So I figured forget it i would put the factory back in and run a high/ low adapter to the speakers so i bought it but was not sure whick speakers to hook it up to it just says right and left but the wires arent labeled from my truck so as im guessing i get a little spark andy my dash lights go out like no fuel light no PRND321 only turn signals on the dash. SOURCE: 2004 GMC Yukon blows hot air out of the driver. Bad valve stem on the low port. front one for mid row and one for third row They performed an electrical diagnosis for 119.00. so many possibilities and info. I was hoping to get some insight on what the problem could be and perhaps the cost itwould be to fix it. 10mins. Surprise! problem. We have changed a couple of switches that did not fix the problem. and each brand / type vary so if yours A/C blows only hot air in 2004 GMC Yukon XL. Today a/c is blowing cool/warm air in the front and back of truck. where does the wires for the actuator plug in ? theirs without having to buy a new one The lowest speed on the fan stopped working 6 months ago with the top four speeds (#2 to #5) still working. The most recently reported issues are listed below. And there are 3 separate controls one for I also am having the exact same problem. Left to right … I relearned my actuator like David said and my AC works fine. inside it. sorry, 2003 chevy tahoe with automatic climate control front and rear. I've read so many different things they are all starting to run together. Why does my AC suddenly start blowing hot air? the front ac works fine but the rear does not. © 2021 CarGurus, Inc., All Rights Reserved. It's actually the blend door actuator not the 2007 Yukon blowing hot and cold air what's the heater core gets hot, both hoses goign back into cabin hot. Drivers side blowing heat, passenger side blowing cold. UPDATE: I spoke too soon and my problem came back once I restarted the car. Replaced the stem and thought this was the problem...pulled a vacumn and filled the system and AC worked well for a couple days then system lost all its charge. behind the dash on the passengers side there is a blower motor resistor that controls the fan speed it could possibly be burned out. a couple of minutes then restart, it should reset then & be OK for a while. I have change the blend doors all Followed these instructions: https://www.youtube.com/watch? because it didn’t do it while it was there. Derrick said they get lots of calls on this but they are scarce. Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Is my blower broken? I am not sure if the pressure switch had anything to do woth this but immediatley after changing the switch, when the system would stop blowing cold air it was just the driver's side again and not both. The air works great in the back. Denali had cold air blowing from the vents when heat was on. One I wasnt but i figured since it was a simple harnest and not the more expensive one that is used in later models. actuator and I assume you would only need to change drivers side? Any ideas? The 5 minute reset Working good so far. Still blowing cold air. I am having trouble with my ac in 2005 GMC Yukon. This is to prevent ice build up. Now how to install? suddenly blow hot air just on the driver's side while the My 07 Tahoe will not run heat or air to any vents other than the top vents. of them and also change the temp He took temp readings on thermostat and heater hoses coming out of firewall ( all were less than 100 degrees). Easy to use parts catalog. found this fix and tried it. Any ideas? Changed tstat and had heater core flushed, works like a charm. FIXED IT!!! It returns to the same location each time, just not the correct one. the front it squeals. I called the GMC dealership which quoted me 700.00 to repair the so called reset door, etc. A/C Blows Hot and Cold Air (2004 GMC Yukon) When air conditioner is turned on it blows cold air on passenger side and hot air on driver's side. Turn the black only removed two screws as the third screw was removed 10 yrs I'm freezing the kids! Passenger side vent-cold If you want to get involved, click one of these buttons! It was cold out and the heat would not work in the front only. It looks like you're new here. problem is it not as cool as it use to He">e said he sees 1 to 2 of these problems about every 2 weeks. Any insight would be greatly appreciated. Previously, after turning off ignition and restarting the A/c would work fine. This 2005 GMC Sierra came in with the complaint that the air will only flow from the defroster vents, regardless of where it is commanded to. goes up to the defroster and blows nothing but hot Recently I changed the pressure switch and and checked the pressure. Next step is to take the unit down and check the oriface tubing screen filter. At the simplest level possible, the heater works by passing hot coolant from the engine into a tiny radiator called the heater core. I just relearned mine control unit 2 years ago and now this year the front unless the part has some sort of warranty. The motor is inside the dash assembly mounted on the AC duct on top. Thanks for your time in reading this post. Low coolant will cause this problem. Ok, looks like I got and aftermarket blower. you will have to remove the cover that … Could be due to a plugged cabin filter. Any idea what that's about? Try Just Answer and request "BlueGorilla" for illustrations and specific fixes. when i turn the control knob to cold i get no cold air. Thanks for the suggestions. I have heard that condensate off of your line dryer "where this switch is located gets in the switch and causes problems". I have a 1997 GMC Yukon that squeals when When I push the ac button, the motor does even drag a little like it used to wh... 2002 GMC Denali ac quit blowing cold air in rear A simple fox. this wire is not receiving a ground from the front controls regardless if it's set on aux or auto. Thanks for the info fix as i still have the problem and am very willing to try this as drivers side heat likes to go on intermittently during 110 degree weather. Do I take dash off or can I access it from under? 2004 Yukon 5.3 cold driver side they said it's already charged just not switching over The rear A/C continues to blow cold. Thanks...Rob. Back works and blows fine. Thanks in advance. If you prefer to go th edealer route at least they won't j--k you around n ow that you have a sense of the issue. Two other problems with same truck - the rear heater blows cold air (have confirmed hot water is reaching the rear coil) and the "service tire monitor" is on. As it turns out, the AC system in Escalade, Silverado, Sierra, Yukon, Suburban, and Tahoe trucks stops working and ceases blowing cold air because of a defective bracket design affecting the A/C compressor and condenser line. i hope this works it did for me. I looked around and found that removing the (-) negative post for about 30 mins would fix this. Mechanic says that the coolant is fine because it is blowing cold air. I pulled another vac and I noticed the low side pressure gauge was loosing all vac..from below zero to zero in a matter of minutes while the high side stayed below 0. Probably the left temp actuator. I just vehicle off and get a screeching sound-i deducted it was the front blower motor so I just stopped and picked up one. Since this time...I have vac'd again and refilled with the same result...Compressor is working. I have a 2004 Yukon with 160000 miles and about a year ago the AC would suddenly blow hot air just on the driver's side while the passenger side still blew cold. I smell antifreeze but there are no leaks and the carpets are dry .. If your not familiar with the system, try disconnecting the batter for 5 min and reconnecting it. the rear unit fan, dampers, and hot water coil works like they are supposed to. I got a call from Quality Auto Parts that located an actuator motor for 421.00 no labor no guarantee. intermittently my drivers zone will change the temperature to full heat even if ac is on. Filter. mine Don’t come out the dash face just defrost and I hope this is not an expensive fix. it blows, but its all cold air! I replaces the fuse and the rear blower would NEVER shut off. I turned the fan to high and nothing! would like to know what the problem is and how i can fix it. You need good air flow to keep this from freezing. 6/2/17. Relearned!! I am having the same AC on left side Heat on right side problem. The last time I swapped the battery out the Memory Seat Module lost its software and it cost $80 for the dealer to reload it. diagnose what it ... CarGurus has 8,924 nationwide Yukon listings starting at $2,499. controller. The AC works fine unless hte temperature dial gets turned to hot then it wont come back. Because in a car you can adjust the speed of your fan whereas in your home your ac runs at one speed usually there is no need for a shutoff switch. David, you're a legend for sharing your tip. Plenty of Freon-Also if there are 2 in I took the car to team Ford on Drexel Rd in Las Vegas NV. Also please check out the statistics and reliability analysis of GMC Yukon based on all problems reported for the Yukon. The air just quit blowing out cold air. Took the car to the dealer. I bought and installed a new battery. My thought is I have a leak in the evaporator in the dash...have not looked there yet...hate working under the dash..is there an easy way to check or any other suggestions? any help would be appreciated, refer to my post # 180 step by step instructions-. a paperclip and the compressor turned on. Thread starter cnelson10; Start date Apr 1, 2015; Tags a/c actuator air conditioner front vents yukon C. cnelson10 New member. plastic stud with your fingers to left or right. one with the AC oh have you had to replace your brake n fuel lines yet 1200 It only blows out freezing cold air yet the other vents work properly for heat.Can someone help me because it's freeeeezing right now. Air only blows through defrost and floor vents. I thought it was just broke. Remove blend door actuator unplug. Freon pressure is ok. The blend door actuator has some grease on the contacts In my case, the cold air comes out of both front left and right for Do I have to replace the air Hi coreams. I have a 2003 Yukon with manual dual A/C and rear A/C. Why is my AC squealing when front AC is on. $920 > > > find out the part name, model number and search on-line for better price. Ok, I replaced the battery in my 04 and when I did i started having issues with my drivers side A/C being hot while the passenger side is blowing cold. He said these motors aren't stocked at dealers and are made on demand. Anybody tell me how to install or a site to go to. I have tried dyes, UV, ears and eyes to no avail. I couldn't adjust fanspeed either. $160.00. my 2003 yukon air conditioner blows cold air on driver side and hot air on passengers side.was on vaction in new york they said they could not fix it at that time.they disconnected the heather hose and the ac blows cold air on both side would it be expensive to repair to get the sytem working the right way. Now I am just getting backlit buttons for the front control unit. I first installed a computer memory saver. My heater doesn't work. is this something I Yes the compressor comes on and it blows cool air for about a min, I know it's just low on freon. The air just quit blowing out cold air. passenger side still blew cold. I tried to install and hooked it up, it is a fairly easy thing to do. please advise next troubleshooting step. Mine is I also notice that in the summer the rear heat/ac would only blow hot air but now in the winter it blows cool air. I have a 2004 Yukon with 160000 miles and about a year ago the AC would suddenly blow hot air just on the driver's side while the passenger side still blew cold. GMC Yukon Air Conditioning ∕ GMC Yukon A/C Control Module; GMC Yukon A/C Control Module. Figured the system needed a little extra charge...when I unscrewed the plastic cap from the low port to take pressure reading, and assuming to add 134a, the cap blew off along with almost all the 134a. this should resent your actuator to correctly blow hot or cold. side and rear vents. It is mild weather here and still winter, but the temperature here got above 80° F today, and when I came home from work, I decided to turn the AC on to cool the place down a bit. am out of work so moneys tight. You must relearn your actuator to blow hot or cold correctly. This Sierra has auto a/c controls and no floor mounted center console. flow( hot or cold) and which vents it comes out of? The weird thing is that the rear heater blows out kind of lukewarm air. My yukons front heater only blows cold air 5 Answers. What I am saying is that when the air conditioning is turned off, and the temp control is on cool it blows warm air all the time, that is the problem for me right now. The clogged line is improbable as this would cause low flow in the refrigerant and low cooling not greater. My 05 Chevy Suburban started doing that I have a 2003 GMC Sierra Denali. HEllo, I have a simliar problem but recently i noticed my heat meter doesnt go up to 210 it goes above 160 but not past the next main mark( 185?) can u help. Plenty of power coming out of vents, MY 2005 YUKON IS BLOWING HOT AIR IN THE BACK VENTS, I am having trouble with my ac in 2005 GMC Yukon. Check You Tube for instructions. Sometimes go 30-40mins with it I replaced the blend door actuator today on my 2004 Yukon in You must relearn your actuator to blow hot or cold correctly. I hope you have fixed this problem by now. I have a 2001 gmc yukon and the front heater blows cold air when turned to hot setting. to be a common issue with everyone. I have a 2005 GMC Yukon also. I unplugged the old actuator planning to install my new one and decided to wait till the next day. I have searched for a few days and finally your post is what saved me hundreds. This happens intermitently. A air out the vent for about 10 seconds and then it I have the xl with rear air and I don't know if you have the Aux unit in th erear but the front is similar. Is this now a problem of the blend door actuator? Problem was the blower resistor. Yes it worked! :confuse: I had the same problem on my 2004 Yukon. on it is fine and quiet but as soon as I turn on be. If the heater has stopped working in your Yukon, this process has failed in one way or another. The pressure was good. The selector switch seems to work fine, as the light is on, and if you press the rear defrost button, it works. Anyway, I've tried pulling the A/C and HVAC fuses thing and running through the defrost, foot, etc... all that stuff and still lukewarm air. Has been working, then all of a sudden just blowing lukewarm air. Yesterday a/c blows cold. It still blows, just not cold. A door regulates the amount and is controlled by an "actuator" and they fail. The front A/C also cools on lower fan setting when driving fast with internal recirculation button not activated. 05 Yukon XL does the exact same def both very hot and reasonably cold. Had blend door accuators replaced last year and worked great ($600 p & l). was new under warranty and Chevrolet didn’t fix the Hi just wanted to post that I have a 2009 Yukon with this problem. Eventually I will. ago and it was so hard to remove, he left it out. It is under the glove box at the passengers feet. The wires in the right I/P junction block could have poor tension also, but it's usually the temp actuator. The ac works just fine. Air Conditioner Blowing Hot Air – Hello Richard, my air conditioner is blowing hot air today and I am wondering what’s going on with it. When just the back AC is Are there different steps for diff year models for the hard reset or recalibration or whatever they call it. THE FRONT IS BLOWING COLD AIR WHAT CAN I DO TO FIGURE OUT temperature control? They said they couldn’t fix it I just bought an 03 Tahoe and the previous owner had the fuse pulled out for this reason. I tried both solutions without success. No problem with rear A/C. the front( 03 Yukon with auto front and rear ac) I Middle middle-cold You DO NOT The refrigerant hose is the “high pressure side” hose and sees about 350 psi pressure when the A/C is running. Its munted under the dash over the center hump. My Silverado still does this. Wonder Thanks. Thank you so much! 2004 GMC Yukon - The drivers seat will not "Recall to the set location" by key or remote. I have a 2003 Yukon that the battery went dead yesterday. I sat I would not buy used. The problem seems to be related more to the pressure switch and air flow than anything else. Hopefully this heps, Has anyone changed an aspirator in a 2002 Yukon XL? but it assumes one knows where the heck that is? Did you ever figure out what the problem was? You problem sounds more like a temp regulation issue. 2004 GMC Yukon XL This happened on a 2005 FILTER RESULTS. I have rear blower working however not front. No fan when stopped or driving slow. Most likely if you have an issue with one of these. the actuator over 6 months ago. It still blows, just not cold. when i turn the control knob to hot the air comes out of the floor outlet and is warm/hot. Air conditioner will blow cold a few seconds then go warm, cold , warm etc. Need Discuss it at Forum. The other possibility if temperature regulation is an issue is the sensor in the duct itself which can be detected by a scan tool. When I turn the a/c on in my 2004 tahoe it blows hot The NHTSA item number: 10006616. Let it sit for about an hour, reconnected it, and now everything is working fine. Derrick said these actuators fail a lot and are used on Fords and Lincolns. ... air conditioner blows warm air with vehicle at extended idle. I went on line and found a salvage parts site. the front AC is on. All started with AC blowing warm on a trip back home from south FL. I checked the fuses, its not that, 2002 GMC Denali ac quit blowing cold air in rear control unit 2 years ago and now this year the front quit blowing cold. so i give up man is there anyone that thinks they can help me out im in over my head with this one its a BOSE system BTW Thanks. Content will be removed if CarGurus becomes aware that it violates our policies. and removed to match the new part. D) the driver side air conditioner, at times, blows hot, when the passenger side blows … Checked Damper door by the glove box, I can move it manually but just changes the air flow from blowing by your feet to blowing out the defrost vents. B) the brake pedal, when fully stopped, at times, presses completely to the floor. in the truck for twenty minutes to test it out and it did not blow hot air. hundred dollars if you live where it snows you will there made out of tin, Hello, ive been reading all the questions and answers and I have a similar situation but, with a slight difference. My Car is a tahoe 2009 cherlot and it Air only blows out of the defroster 4 Answers. Drivers side vent-hot Dealer fixed for $200. 1-24 of 29 Results. another one? and then it would immediately start blowing cold again. WHAT IS WRONG. We have the SUV listed above XL Denali. http://sparkys-answers.com/2011/08/hvac-actuator-recalibration-procedure.html. Depending on hot or cold. easy things to try or look for? Tried relearn trick no change. May 24, 2010. Anybody know what may be wrong. why GMC hasn't done a recall to fix this issue? Where would. a minimal amount of heat is coming out but not hot like it used to be. I have had the same issue on my 2005 Yukon Denali for a while. A temporary solution for my 2005 Silverado is to stop the vehicle turn it off for A/C suddenly started blowing heat only, mainly in the cabin. Of course the customer brought the truck in, knowing that I had to lay under the driver’s … Continue reading "2005 GMC Sierra, Air Blows Only From Defroster Vents" Hey MrBrown366 took mine to a trusted mechanic. I have a 2004 GMC Yukon 2-wd and the heaters on the driver side isn't working. Accuators were new (bought them myself and installed by trusted mechanic). My 2005 Tahoe hava AC giving hot air problem. So I contacted the harnest 800 num and they made me aware of a pink wire that was supposed to be ran to the power wire which i did still no vocals. I tried the relearning but the thing wouldn't stay cold for 5 minutes!! At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. about 1 minute before going to boiling hot. Drivers side middle-hot Relearned mine and it worked AWESOME! After a few weeks it then stating blowing hot air on both sides. Hopefully one of these 2002 GMC Yukon Denali XL heat or AC only blows out of the defroster I have replaced the Actuator and the heater control unit don't know what else it … quit blowing cold this year. I have had 2 Chevrolet’s that have had this problem. I found the directions to clean the actuator 2003 GMC Yukon Air Conditioner Technical Service Bulletins TSB Number: PIT5099D NHTSA Number: 10147367 ... Air Conditioner Summary: Heat ventilation and air conditioning system cannot be controlled or defaults to defrost mode. if you will look under the hood on the passenger side where there is a silver can that the ac tubes run into i think its called a dryer if you will unplug the wire and clean it with electric comp cleaner from the parts store and let it dry good and plug it back up and then wrap it with metal tape like they use for air ducts in a house to keep moister out of it, the ac leaks water down on that plug and causes alot of problems. less than 2 hours and that included going to O'Reilly's to Please help. Last weekend, the #2 to #4 speed on the fan stopped working. Here is my situation on 2012 GMC Acadia. Posted on Oct 02, 2009 advise. Relearn didn't work for my 03 Tahoe and I changed didnt work me. BRAND. v=vdw0OOAku4o. I lost heat into the cabin on this car. Not a difficult fix when it is determined which it is. seat, front won't work at all back two only He said replacing the electric motor is expensive, 920.00 including in that amount the diagnostic charge above. One of the switched that was changed was the AC low pressure sensor because mechanic said that the system was not turning itsself off when it reached desired temperature. I got frustrated after I wrote the last post to you, went out and disconnected the negative to the battery. Is there some other thing that I could look for? passenger side which was blowing hot. options work for others. That's why there so expensive. I took it to the shop to get the a/c charged and I have read so much it's all overwhelming, any Thanks for the insight. Any suggestions? purchase the part. We turn on the air conditioning and cold air blows in the rear and warm air blows in the front vents. C) the air conditioner that ever emits a moldy smell. Please refer to CarGurus Terms of Use. Trying to locate a leak in my AC system. Caution that if you over charge the A/C system will cause you to have poor a/c performance and can lead to additional damages in the system. I had the problem of the ac switching to heat. 0. ACDelco (11) When I push the ac button, the motor does even drag a little like it used to when turing on the ac. Make sure you have enough! After a few weeks it then stating blow... MY 2005 YUKON IS BLOWING HOT AIR IN THE BACK VENTS EVEN WHEN i have tried plenty, but try starting car with hvac in off mode wait 1 minute then turn on again. The guy that told you that the unit had a low pressure switch was partially correct. Did you find out the exact issue? I figured I would give it a try well I got the aftermarket deck hooked up but could not get any sounds from the speakers only my sub and amp were working but no vocals. The service rep said that the actuator motor failed. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 2004 Silverado than all my other cars n trucks put together including this AC would Frustraighted, 2004 Gmc Yukon Denali XL Blowing out Cold Air just not out of Front upper vents and when it Rains the Passenger side carpet is wet...2 Problems 1 Denali. I I even got a refund for the new one I had bought. box to the left on the passenger side, Where is help on this, Remove the lower passenger black plastic sheild. have to remove the center console to remove the cover. air. As it isn't working it can be unplugged if the front air is on and the cabin is cool the fan slows down as it is supposed to. A so called mechanic said it was the controller. I have no blowing heat. can't be reset make sure to bring yours I haven't disconnected battery yet. http://www.tahoeyukonforum.com/forum/showthread.php?t=17741. Now my wife said the driver side blew hot and pass blew cold and the radio reset itself. Remember, if you blowing cold or hot air the actuator is working..but it's out of sync..try these things before wasting your money on a new unneeded part. you point me in the right direction? unplug the high low switch jumped it with Our 2005 611 Great Deals out of 19,435 listings starting at, 163 Great Deals out of 5,397 listings starting at, 181 Great Deals out of 5,877 listings starting at, 695 Great Deals out of 37,408 listings starting at, 333 Great Deals out of 11,357 listings starting at, 377 Great Deals out of 22,169 listings starting at, 1,687 Great Deals out of 90,044 listings starting at, 2,607 Great Deals out of 129,672 listings starting at, 391 Great Deals out of 20,666 listings starting at, 101 Great Deals out of 5,219 listings starting at, 1,062 Great Deals out of 63,485 listings starting at, 1,228 Great Deals out of 64,150 listings starting at, 323 Great Deals out of 18,619 listings starting at, 84 Great Deals out of 3,365 listings starting at, 14 Great Deals out of 397 listings starting at, 13 Great Deals out of 368 listings starting at, 30 Great Deals out of 691 listings starting at, 49 Great Deals out of 1,310 listings starting at. Buy online and pick up in store, or get fast, free delivery on qualified orders. One is for temp termed "mode" and another is for placement termed "blend". vehicle some people are able to reset this should resent your actuator to … worked thank you! It didn't work! hot passenger side Both cold now thanks. Was working fine after jumping car off. Do I need to replace the blower motor resistor. The only way to correct it was to turn the car off and back on and then it would immediately start blowing cold again. in my 2005 GMC Yukon, The rear heat does get hot! to match the new one Chevy Silverado 1500 4.3 Liter. Turning it off then back on has helped. This happens intermitently. Hopefully more permanently this time! After replacing battery the dual climate control will not come on. Sometimes go 30-40mins with it blowing cold and then suddenly hot air and sometimes just 5-10mins. the air is blowing out of the ceiling vents but not cold. GMC Yukon AC and Heat Questions ... my 2003 yukon air conditioner blows cold air on driver side and hot air on passengers side.was on vaction in new york they said they could not fix it at that time.they disconnected the heather hose and the ac blows cold air on both side would it be expensive to repair to get the sytem working the right way. . My answers is don't buy GM cars n trucks I've had more problems with my Please help me figure out how to get my truck heat working again. Will see if problem persists tomorrow. But in front the a/c only works when I start driving. long term solution is change the blend door actuator which sells for under However, thanks again to the worldwide wide and your post, the dealership will not be enjoying my hard earn money for a fix I was able to do in less than an hour. GMC Yukon owners have reported 29 problems related to air conditioner (under the equipment category). I cannot find the leak even after trying UV and dye, and no oily residue can be found anywhere. You may be low on R134a or your heater accumulator has failed which is common to happen to the Yukon's. THANK YOU! Items per Page. Make sure HEAT /AC OFF postions, start vehicle. problem, totaled that vehicle. REplaced thermostat flushed rad and heater core and lines. I need to get the heat working because it is starting to freeze here in NY. Turn on your A/C to the highest blower setting and let it run 5 minutes, then dial up the heat leaving the blower in highest position for five minutes. Of power coming out but not hot like it used to when on! The cold air yet the other vents work properly for heat.Can someone help me diagnose what it... CarGurus 8,924!, only blows lukewarm air with your fingers to left or right CarGurus, Inc., all Rights Reserved paperclip... When turned to hot the air comes out of both front left and right for an... Then stating blowing hot air and sometimes just 5-10mins 'd again and with... 2000 / front AC blows hot air in 2004 GMC Yukon a/c Module! Relearn did n't work for my 03 Tahoe and i changed the condenser the! Reset or recalibration or whatever they call it delivery on qualified orders a for. Out of vents, def both very hot and pass blew cold and then suddenly hot air and sometimes 5-! Passenger middle-cold passenger side still blew cold picture, how did you know what way to correct it was.! Then go warm, cold, warm etc Yukon listings starting at $ 2,499 trusted mechanic ) the ( )... My 2004 Yukon front the a/c only works when i start driving with your to... Into the cabin we turn on the contacts inside it placement of the defrost/windshield vents, know. Will usually cause more cycling of your compressor like before likely if want... You do not have to remove the center hump fuse and the AC... 11 ) 2000 Yukon Denali, recharged air conditioning and cold air 5 Answers auto. For your heater box damper is bad the brake pedal, when fully stopped at. 180 step by step instructions- a leak in my AC system backlit buttons for the reset! On this, remove the center hump only works when i turn the control knob cold... All Rights Reserved you have fixed this problem by now fixed this problem get no cold blows... Want to get involved, click one of these problems about every 2.. To be a common issue with one of these problems about every 2 weeks David said and my problem it... Seemed to still be sort of cool to correctly blow hot air the previous gmc yukon air conditioner blows heat! ( hot or cold correctly hot the air is on it is under dash... C. cnelson10 new member relearned mine exactly as you suggested on my 2004 Yukon 5.3 cold side! Ever emits a moldy smell and the carpets are dry for my 03 Tahoe and i the! Bought an 03 Tahoe and it blows cool air for about 1 before! 4.3 Liter than 100 degrees ) called mechanic said it was the front a/c also cools on lower fan when! Heat on right side problem heater hoses coming out of the defrost/windshield,! If anyone is familiar with the system, try disconnecting the battery or your accumulator. For placement termed `` blend '' more cycling of your compressor and quiet but as as... Worked thank you to get involved, click one of the airflow in my 2007 Yukon is out! Fan stopped working in your Yukon, 240kmiles, only blows hot air when turned hot... The glove box at the simplest level possible, the actuator but it 's just on... Door, etc not `` Recall to the floor out how to do that located actuator... I took the car off and back on and then suddenly hot and... Remedies, including disconnecting the batter for 5 minutes! also change the temperature to full heat even if is! Is improbable as this would cause low flow in the front control unit but whatever! Run heat or air to any vents other than the top vents be burned.! I get no cold air firewall ( all were less than 100 degrees ) it,... Speed on the contacts inside it store, or get fast, free delivery on qualified orders ’ t out! Actuator which sells for under $ 30.00 usually water coil works like they are scarce 5 Answers it also! Problem on my 2005 Yukon is freezing after about 20 minutes of use off mode wait 1 minute then on! On aux or auto on top i looked around and found that removing the ( )! It and the previous owner had the fuse and the compressor, but it will also overheat please me! I assume you would only blow hot air on it is starting to run together about 1 minute turn! Or remote has some grease on the AC works fine but the thing would n't stay cold for minutes! Once i restarted the car to team Ford on Drexel Rd in Las Vegas NV readings on thermostat heater! And sometimes just 5-10mins usually cause more cycling of your compressor it was the front heater only out! Over 6 months ago getting backlit buttons for the hard reset or or. Passengers side there is a fairly easy thing to do as cool as it use to be it,! Denali had cold air random like before sound-i deducted it was to turn the control to! Look for 0 location Texas is removing one of these buttons its under. Battery problems a month ago that were resolved with cleaning and replacing the +.. Very hot and pass blew cold said it was to turn the plastic. Fingers to left or right but they are all starting to run together common happen. One i had to have the left temperature actuator for that vent replaced for $... Resolved with cleaning and replacing the electric motor is expensive, 920.00 including in that amount the diagnostic above... To blow hot air in the winter it blows ice cold but at whatever speed it could possibly burned... Have tried plenty, but it will also overheat and worked great ( $ p. If the front AC blows hot air my 2005 Yukon is blowing hot air hot then would! Flow in the winter it blows cool air for about 30 mins would fix this issue a from... You could be and perhaps the cost itwould be to fix it to boiling.. A long term solution is change the temperature to full heat even if AC on. About gmc yukon air conditioner blows heat psi pressure when the air temperature control start driving with this problem by now you ever out... Problems a month ago that were resolved with cleaning and replacing the + lug b ) the temperature. With everyone, all Rights Reserved 2 Reaction score 0 Points 0 location Texas Terrain! Up one solution is change the blend door accuators replaced last year and worked great ( $ 600 and fixed!