Car Problem Reports

Chevrolet Trailblazer AC Blower Inop Due to Failed Resistor

Chevrolet Trailblazer Problem
143 Reports
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Model Years Affected: 2002, 2003, 2004, 2005, 2006, 2007, 2008

Average Mileage: 101,276 mi (10,400 mi - 295,000 mi)


The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

  • Visitor, , 74,348 mi

    when i turn on my a/c the engine cuts off an sometimes idle up an down then cut off

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  • Visitor, , 64,000 mi

    my a/c blower does not go off even when my key is out of the ignition. the temperature gauge goes from 80 degrees all the way down to 10 degrees and back up again intermittently. Now my a/c says it's on full blast but nothing is coming out of the blower at all.

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  •  Enthusiast

    Blower does not work at level 5. Only runs on levels 1 - 4. Replaced blower resistor and that solved the problem.

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  • front Blower motor stays on with key out of Ignition.

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  • Visitor, , 49,454 mi

    Heater only worked on speed 4-5. Independent repair shop $55 part, $25 labor.

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  • Rear A/C Heater doesn't work

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  • Visitor, , 23,545 mi

    Speed control #5 nor working.

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  • Visitor, , 116,277 mi

    Speeds 1-4 work, #5 quit today, nothing at all. After reading reviews and some internet searches on different sites, I've narrowed the problem down to a faulty resistor and purchased one online through Amazon. I'll let you know if this is successful as with others to remedy the problem.

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  • Visitor, , 100,000 mi

    had to replace blower resistor myself

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  • Visitor, , 99,207 mi

    Level 1,2,3,4 on A/c not working

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