Question about 2005 Chevrolet Trailblazer Ext

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Needing low pressure A/C port for R-134a refill

I'm needing to find the low pressure a/c port for my 2005 Chevy Trailblazer with the V-6 Vortec Engine. The instructions for the refill kit say to look for a port with a blue or black dust cap between the evaporator (dashboard) and the compressor. The hose from the dashboard that runs to the compressor has no port. There is a port right near the front of the car near the radiator, and there isa port on the condensor (the silver tank).

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  • pontiac68lov Jun 26, 2009

    Uh, they are both the same size :(

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  • Chevrolet Master
  • 426 Answers

Yes smaller of the 2 is your low side port

Posted on Jun 26, 2009

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