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TrailBlazer 2002-2009
2023- The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
Platform: GMT 305, 360, & 370.

Cabin Temperature Erratic

   
Old Nov 22, 2021 | 7:22 PM
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soffenback
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Default Cabin Temperature Erratic
I have 2002 Trailblazer LT. When the heat is on the temperature can be erratic. Unless it's turned to 90 degrees, it can be warming and then cools down. It's all over the place. Any thoughts? Is there a cabin air intake sensor that could be going bad?
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Old Nov 23, 2021 | 6:56 AM
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Do you have a manual or automatic (digital temperature display) HVAC system?
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