Question about 2004 Chevrolet TrailBlazer

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2004 Chevy Trailblazer, At first you could only get the air conditioning to switch on by turnning the vehicle off and switching over to AC. Now the AC will not come on and it is always blowing hot air out of the dash vents, even when the blower controls are off.

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Could be your main blower motor resistor, mine would still run the fan even after shutting off the vehicle.(safari van) Had to unplug the resistor to stop the fan,it was near the blower under the hood. Bought a new one for about $45 bucks. Replaced it and all is fine. Might want to check relays first, sometimes they stick and need replacing.
Good luck.

Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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