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2003 chevy trailblazer_lt
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17 Posts
Discussion Starter #1
2002 Trailblazer. Speeds 1,2,3 do not work on heater fan blower. High positions 4 and 5 work fine.

Switch, blower motor, something else...?

Thanks!
 

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Registered
2006 chevy trailblazer_ls
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61 Posts
Just had my #4 blower speed crap out, every other speed continued to work.

It was a resistor so it's highly likely you've got multiple resistors that have failed. Stealership said it had melted.
 

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2003 chevy trailblazer_lt
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17 Posts
Discussion Starter #4
Thank! Fixed! $28.

Took 10 minutes. $28 at Autozone. Thank You.
 
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