Question about 1997 Chevrolet Lumina

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Ac refill help!

Need to know which port is refill port,the one nearest fender or nearest motor, on 1997 chevrolet lumina 3.1 L. engine.Can anyone help me please?

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  • Keith Heavilin
    Keith Heavilin May 11, 2010

    Which port is attached to the bigger tube and the port should be smaller?

  • Keith Heavilin
    Keith Heavilin May 11, 2010

    Which port is connected to the larger tube?



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Either one can be filled from one is the high side one is the low side usually you fill from the low side though it is the larger of the two lines. unless you have special gauges you cannot even hook up to the high side of the system

Posted on May 20, 2009


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Posted on Jan 02, 2017


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