Recent content by AllenBrowning

  1. AllenBrowning

    Another HVAC issue post...

    I have a standard diagnostics scan tool. I’m guessing the Tech-2 is a bit different?
  2. AllenBrowning

    Another HVAC issue post...

    interesting, I’ll have to check into that. I as well had thought it was something to do with OnStar. in the diagram, that actuator I thought was the temperature blend actuator? That one functions properly. I can hear the door open and close when going thru the calibration. I have replaced that...
  3. AllenBrowning

    Another HVAC issue post...

    Thxs for responding! How do I access the driver’s temp actuator? That’s the one I can’t locate. I’ve disassemble the entire dash, cut the air duct, removed glove box and air bog, radio, hvac controls. Only thing I see is a cover on top of the hvac system covering cabin filters. But no actuator...
  4. AllenBrowning

    Another HVAC issue post...

    thx for your response. Your pics show what I first experienced for the mode door actuator. Broken gear. I replaced that one several months ago which did not remedy the issue. Which is what took me attempting to locate all other actuators. I removed the blend door and recirc actuators. Opened the...
  5. AllenBrowning

    Another HVAC issue post...

    Here is the parts code from the glove box
  6. AllenBrowning

    Another HVAC issue post...

    Oh sorry I didn’t realize. I’ll update everything as soon as I get the info. But yes it’s elect climate control. The image in the pic is the same as what we have. thx for the response. I don’t have access to Tech2. I have read about that and would be a great help for this I’m sure. The recal...
  7. AllenBrowning

    Another HVAC issue post...

    Oh sorry I didn’t realize. I’ll update everything as soon as I get the info. 2002 Yukon XL SLT 2WD 5.3 auto with tow package 36,000 miles. Everything is all factory. But yes it’s elect climate control. The image in the pic is the same as what we have. My next step was looking into replacing the...
  8. AllenBrowning

    Another HVAC issue post...

    Hello all, I’m having an HVAC prob in my 2002 Yukon xl slt. HVAC is stuck on defrost/heat/outside air. No controls work. All rear ac/heat/fan/mode controls work perfectly. This is only the front cabin area. I’ve searched and searched this forum and all through YouTube and other internet sites...
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