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heater/ac

  1. NO heat on cold days

    General
    Hi All I have been trying to figure out what is wrong with my HVAC system for a while but haven't been able to, I've read many post used the custom search but nothing yet. So I'm reaching out to fellow TB owners. Here's the gist: 2003 TB will kick out heat when temp outside is 50 and above but...
  2. Heat/Air Conditioning Switch Not Working...please help

    OEM Issues
    Hey everyone. I have a 06 Trailblazer ls ext with around 79000 miles on it, and I was driving around the other day and the heat and air conditioning switch stopped working (0-5). I tried playing around with what numbers it will work on and it has only worked on 0, 1, and 2. Before this problem...
  3. A few electrical problems NEED HELP

    General
    I have a 05 Envoy. I have been having problems with the heater, and now it has seem to move to more of the electrical in the truck. In the last week and a half I have had to use a battery charger twice to start the truck. Once I do that and give my dad a ride to work the battery will stay...
  4. Heater/AC Temp issues and electrical issues

    General
    I have had a long running issue with the heating and cooling of the cabin of my 06 Envoy. The A/C blows nice and cool, and the heat blows really nice and warm. However the problem is that it will only blow super cold, or super hot. There is no in between. If I am running the A/C it will blow...
  5. [SOLVED] Heater/AC issues and electronic issues

    OEM Issues
    I have had a long running issue with the heating and cooling of the cabin of my 06 Envoy. The A/C blows nice and cool, and the heat blows really nice and warm. However the problem is that it will only blow super cold, or super hot. There is no in between. If I am running the A/C it will blow...
  6. P0410 code and blower problems

    OEM Issues
    I have 2005 Envoy sle I have a P0410 code I have look at acouple of threads so I know some what what to do for that but I also have a problem with the heater/AC when the truck is running and you turn on the heater or AC it acts as if it is going to bog out Im not sure what to do. It doesn't...
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