Question about 2005 Chevrolet TrailBlazer

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When i start my 05 trailblazer it makes this really high pitched sound like a jet engine but then stops but after awhile of driving it does it again and quits again

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Had the same problem it's a secondary air injection pump easy to replace look under the trailblazer about where the seats are underneath and you'll see a round black plastic thing with two hoses running to it that's it. it whistles because it's bad. i got mine on amazon about $145 it's worth it not to hear it again. good luck!

Posted on May 01, 2013

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Replace the fan clutch on your radiator fan.

Posted on Aug 26, 2010

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Posted on Jan 02, 2017

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