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Chevy Suburban and Tahoe AC and Heater Problems



  • gmcustsvcgmcustsvc Posts: 4,251

    Glad to hear the air is now working! If you have any questions or concerns please feel free to contact us directly.

    Thank you,
    Caron, GM Customer Service
  • yysgirlyysgirl Posts: 3
    I am having the same problem. Is there a sensor that needs to be changed or protected?

    Thanks so much for any help that you can provide. I do not want to have to spend hundreds of dollars that I do not have to find out that it might be something simple and inexpensive.
  • gmcustsvcgmcustsvc Posts: 4,251

    Were you planning on having this issue looked at? Please keep me posted when the issue has been taken care of.

    Thank you,
    Caron, GM Customer Service
  • dstraubdstraub Posts: 1
    Thanks for helping-our 2005 suburban air-conditioning fan only works on fan setting bar 3, on the other settings the fan shuts off. The rear fan has no problems. Is this a function of the controller going bad or does it have to do with vacuum lines?
  • gmcustsvcgmcustsvc Posts: 4,251

    Were you planning on taking the vehicle in to be looked at? Please keep us posted when the issue has been taken care of.

    Thank you,
    Caron, GM Customer Service
  • klbutle1klbutle1 Posts: 2
    edited June 2011
    I was looking on the site for the exact same problem with my 05 Tahoe T... Help any idea. single mom in AZ :sick:

    '05 Tahoe with digital climate controls and dual AC. The front AC does not blow anything at all when stopped, when you start moving it starts blowing after about 20 mph. It will only blow at 1 speed regardless of what you select even if it is on automatic. Rear AC works fine. Anyone have any ideas?
  • klbutle1klbutle1 Posts: 2
    05 tahoe AC fan does not blow when setting still

    '05 Tahoe with digital climate controls and dual AC. The front AC does not blow anything at all when stopped, when you start moving it starts blowing after about 20 mph. It will only blow at 1 speed regardless of what you select even if it is on automatic. Rear AC works fine. Anyone have any ideas?

    I found 3 other postings with the same exact problem make, model and problem description
    no resolution to it. help would be great full :sick:
  • gmcustsvcgmcustsvc Posts: 4,251
    I apologize for your concerns. Have you spoke with your dealer? If you would like to send me your VIN I will look into recall information for you. I look forward to your response. Have a great weekend!
    GM Customer Service
  • babyads04babyads04 Posts: 1
    I have had problems with my A/C since March of 2010 and it is now June of 2011. I recently received a letter from GM concerning this problem. The letter is a special letter concerning the HVAC system, the interface module, the blower motor resistor, and a few other electrical devices connected to the blower controls of the vehicle. This is not a recall as specified by GM. It only affects some 2003 year model Tahoes. Your vehicle must be in this category for it to qualify. I had problems with the controls turning the air on period! I took it to a local mechanic to have it checked to see what the problem was and the mechanic told me it was the interface module that controlled the air being turned on or off. He replaced a fuse and told me that it would run temporarily on 1,2,3, or 5, but would blow a fuse if it was turned to 4. At this time I had a 3 month old baby and knew that it would soon be hot. I was currently unemployed and my husband was the only one providing an income at that time. We had no extra money to have the vehicle fixed. Under the conditions of the letter it stated that the vehicle had to be under 150,000 miles or within a 10yr period, whichever came first. As most people would have more than 150,00 miles on a 2003 vehicle by this time especially if it has been driven. This specific Tahoe has 172,250 miles on it. After having the blower motor resistor replaced in April 2010, the a/c was in working condition for a temporary time period. We still have been unable to have the interface module replaced due to lack of funds. I have been unemployed since 2008 and have not found work yet, where I live. Jobs are scarce and it is hard with a family of 5 to take care of these unexpected type of issues when they occur. The A/C blower only works on 5 now and this has recently occurred. I spoke with GM Customer Care Assistance and they provided me with a case# and said that they would look into this further. I was told they would call the local dealership that I had chose to have the vehicle worked on if they decided to cover. They told me that they would call between 1 and 2pm that day to let me know what they decided. I never received a call back concerning the issue until the next day. Then I was told that it would take a little longer to come up with a decision. They called back later the same day to let me know that their decision was that they were not going to do anything about it. My vehicle was out of the mile range but was still under the 10 year time frame. I don't think that it is fair that they are not covering a problem that was a manufacturing defect and that there was an issue with this on many vehicles or otherwise they would have never sent a letter out concerning this problem. I know that GM can't fix every problem that occurs, but this is about a $172.00 part that I am going to have to replace if I have the extra money, and when I have the extra money. I was so hoping that since it was close to 150,000 miles that they would go ahead and fix it anyway out of common courtesy, but not too many companies know what that is anymore. Everything concerns the almighty dollar. Oh well so much for getting my A/C fixed!!!!!!
  • kyfdxkyfdx Posts: 64,725
    edited June 2011
    No VINs in the forums...

    If you want to provide personal information to gmcustsvc, then click on their name and send them an e-mail!



    Prices Paid, Lease Questions, SUVs

  • wbernhardtwbernhardt Posts: 16
    You know you would think after we all bailed GM people out of BANKRUPCY , you would think they would appreciate that and help you and me out. I my self have had gm vehicles (older ones and thought I would treat myself and wife to a newer vehicle so we bought an 04 regal with 58,000 miles on it. It is a nice vehicle . Guess what Transmission problems with it shifting hard. This has been a problem for years on that engine which is in many cars. No recall either but they know a problem exists. They have a service bulletin out for it. Guess what, they said they would not help us out because we were the second owners of the car. We can't afford a new car so we are penalized by GM not helping us and have to fix the problem ourselves. What I SHAME GM
    Think twice about buying GM again.
    I won't hesitate in buying a honda or toyota.

    Good luck .
  • My ac problem started when my rear ac stopped working in my 03 Tahoe, around that same time it would shake while stopped or in park. then about a day or two later my front ac started blowing out warm air only. I checked the Freon levels as well as fuses and they were good, so I took it to a Chevy dealership ($90) in which they said I needed a new ac belt. I bought a belt and had it put on, the rear ac still didn’t work but front blew cold. 1 day later, belt broke again so I bought a second belt and ac belt tensioner, which worked for a day as well. Now my belt broke again, so I’m back where I started.
  • Recently, the ac and heat in my 2004 suburban does not work right. When I start the car in the morning, the ac works, but once the outside temp hits 75 it begins to blow cold air. Occasionally, it will work all day. Conversely, in the winter, once the temperature dips below 50, cold air blows. Additionally, I have two temperature settings 60 and 90- nothing in between works.

    I have had the ac checked and of course the mechanics cannot replicate the problem in the shop. It has been suggested that it needs a whole new control unit? But, now I am thinking that it is somehow tied to an outside thermometer maybe? It is just so hot!!!!!

    Any help is welcome. Thanks.
  • yysgirlyysgirl Posts: 3
    I have been on here for a year trying to figure out why my a/c would not work properly and could not get it to replicate for anyone else either. I narrowed the problem down to when it rains or when the suburban gets wet from below (large puddle or water from fire hydrant draining). Finally found a link not too long ago that directed me to the ambient air sensor (cheap fix rather than a whole a/c workover!) The part is under $35--though going to get my husband to check the wiring first. There seems to be 2 sensors. I am guessing that we need to check the lower one behind the lights because of the puddle issue. Here is a link to some diagrams that might be helpful. You will need to scroll down on the page. Plan to put this on the husband's 'to do' (nag) list this weekend. I am not a happy camper driving in a hot car in over 100 degree weather. I hope this helps you...(AND solves my problem TOO!)
  • magilamagila Posts: 1
    Replaced my battery and now my A/C is blowing out of the defroster. Does anyone know of a computer relearn procedure?
  • grover103grover103 Posts: 1
    Calipaq, did you ever resolve this problem. I am having the same issue. Just had the AC recharged and front vents are ice cold but the rear blows warm air.


  • nosagroynosagroy Posts: 5
    No I haven't. My issue is regarding the rear actuator for the temperature control. The actuator seems to work I changed it out with the same actuator that controls the flow of air to the floor and headliner and it worked fine. Both have same part number. What I have narrowed it down to is that either the controller at the front of the vehicle is not working properly or their is a wiring problem and the controller works but the signal to change from hot to cold is not getting to the actuator. I my case I think it is the latter because the previous owner of the vehicle removed the air controller in the headliner just behind the front seats so they could install a a tv screen. I think they didn't get the wires put together correctly and that is were my connection problem is. I just haven't got the time to check it out yet.
  • ldreamazldreamaz Posts: 1
    I also have a 2003 Tahoe.. I took my Tahoe to a mechanic, problem was:
    ~A/C fan blows in the rear once Tahoe is turned off. Found out that its what was draining the battery.. this after purchasing a new battery.
    ~Front A/C blows on defrost and feet only. This has been happening for a month now, but once it did blow from the front.. once!
    ~Rear A/C use to blow cold, but now its hot!

    Mechanic says I have a module that needs to be replaced, $298.00 and entire A/C needs replacing $600.00 . Please tell me this is not right.. :sick:
  • Alright people .. My a/c today decided to switch from blowing out of the dash to blowing out of the defrost all by itself. The control panel still shows that it's supposed to be blowing from the dash and changing the output on the panel does nothing. If I shut off the engine it will start blowing out of the dash again and then change back to the defrost after about a minute or so. This is a 2004 tahoe, Any ideas????
  • I'm experiencing an issue with my A/C not blowing when I turn vehicle on. It takes approx 5 minutes to kick in, when it does it's cold air so that's a good thing however when I try to adjust the fan from blowing hard to moderate it does nothing then adjusts 2-3 minutes later. the kicker is when I turn my vehicle off - take the keys out of the ignition - open my door it's still blowing cold air and will not shut off and takes again 2-3 mins to stop.

    Note: A month ago I had another issue fixed where the water was draining on my floor board and it wasn't the drain hose clogged, after two cleanings took it back again and there was a penny blocking the hose to drain outside.

    Any feedback would be greatly appreciated!
  • chap19chap19 Posts: 1
    When my i have my air conditioner on,and i put on the brakes at a red light it blows hot air,but when i pull off it blows cold again????
  • When I have my air conditioner on,and i put on the brakes at a red light it blows hot air,but when i pull off it blows cold again???? I have had the chevy dealer look at it and 2 other shops and know one can figure it out. I have replaced compressor, orfice, drier, clutch fan and belt tentioner and still no fix.....Any Ideas??????
  • I notice my ac start blowing hot air, If I turn off the truck am back on it start blowing cold air again. Now i see the hot air is just coming on the driver side of my truck ,the pass. side still blowing cold air, I think it might be in dual control swicth.
  • yaryaryaryar Posts: 1
    Hi all, we recently purchased a used Suburban and we are experiencing air conditioning problems. The problem is that the compressor 'cycles' on and off for 20-30 minutes before it finally kicks in and cools consistently. So, for the first 20-30 minutes the interior of the vehicle stays hot, which isn't good when it's 98 degrees outside and I've got 3 little kids that can't tolerate this extreme heat. It seems that with stop and go running around, the AC never fully kicks in, but if you jump on the interstate, it will kick in sooner. Any ideas on what would cause this??? The first time I took it to the dealership, they said they found a 'loose cowling', but obviously this isn't the problem, so I plan on taking it back again this week sometime.
  • I have a 2005 Suburban and it has just started emitting and odor when A/C is operating and when the system is running, under the center dash a pink fluid is leaking from behind the plastic. System still cools and heats air normally.
    Any suggestions would help?
  • The truck started making this weird noise yesterday that I have never heard before. As I stepped on the gas the engine sounded like it was revving up, almost like a loud fan noise. I parked it then this morning as I went to start it, it will not go in reverse. The drive seems to catch a little but in reverse it doesnt move at all..almost like its neutral. What could the problem be??
  • my youngest played with our climate control suburban 2004, now the drivers side will only blow extreme heat, any one know what i need to do, i have taken out the fuses, no luck, disconnected the battery no luck. any ideas please
  • Front air is weak until I turn on the rear air - then blows much colder. Rear air seems to work fine.
  • I have a 2005 Tahoe with all the bells and whistles. The air conditioner (dual controls) in the front only blows cold air out of the vents when the Tahoe is traveling at speeds above 30 mph. At a stop, nothing comes out of vents. Sometimes if I turn the air conditioner off or on, it will work fine, but I can't count on it. The back vents blow cold air with no problem. It's 105 degrees right now. I need this thing working! Any ideas?
  • I had similar issue with my 2003 Suburban. My michanic (Small Garage) change Heater control valve, cost $60 parts and $70 labor. Problem is now fix.
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