TrailBlazer 2002-2009
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.

Temp goes up to 3/4 mark when turning on AC

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Old July 8th, 2014, 7:21 PM
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Post Temp goes up to 3/4 mark when turning on AC

What a headache......dang it. I have a 2003 Chevy LTZ Trailblazer. Great car, but recently every time I turn on the AC the temp goes up to the 3/4 mark....What is wrong with it? Fan, thermostat, fan clutch? I cannot keep dumping $$$ into this car. Help! When you turn off the AC it goes back down to the halfway mark.
Old July 9th, 2014, 5:00 PM
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Originally Posted by Trailblazerltz
What a headache......dang it. I have a 2003 Chevy LTZ Trailblazer. Great car, but recently every time I turn on the AC the temp goes up to the 3/4 mark....What is wrong with it? Fan, thermostat, fan clutch? I cannot keep dumping $$$ into this car. Help! When you turn off the AC it goes back down to the halfway mark.
Open the hood and take a look what happens??

common problem?

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