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A/C is blowing warm on a 2005 Trailblazer

I need to find the low pressure service port.

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Not for absolute sure on this, but look on the passenger side firewall. There is a round aluminum can. That is the filter/drier. The port will either be on it or on the line coming out of it running toward the front of the motor. Hope it helps.

Posted on Jun 25, 2009

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