Question about 2003 Chevrolet TrailBlazer

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It started with a loud ticking sound towards the back of the suv. i was told that it was the a/c relay switch needing to be replaced. how do i access that relay?

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It should be located in the engine bay inside a black plastic box on the left or right side. Release the plastic clips on the cover and the diagram on the bottom of the cover will guide you to the relay. Pull it out and put the new one in. This is a common problem on the Trailblazer.

Posted on May 28, 2010

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