2004 Chevrolet Avalanche Logo
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james cook Posted on Feb 10, 2014
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My heater fan only works on high - 2004 Chevrolet Avalanche

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Johnathan Lence

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  • Chevrolet Master 443 Answers
  • Posted on Feb 10, 2014
Johnathan Lence
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Joined: Oct 10, 2008
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You need to replace fan speed sensor ,located beside the fan under right side of dash

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