Question about 1999 Chevrolet Monte Carlo

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Trying to locate low pressure side of a/c to add R134A on a 1999 monte carlo. I have two ports....one is top of the other..the top one points straight up and the one beneath it is at an angle. they are both located beneath the air filter housing on the drivers side

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If you buy a recharge can from your local auto parts store the connector will only fit on the high side. It is usually bigger then the low side so the connector will only clip onto the high side connector.

Posted on Apr 06, 2011

  • davidhermanc Apr 08, 2011

    Dude, you don't recharge the a/c system from the high side....did you mean to say low side???

  • Al Wolfy
    Al Wolfy Apr 08, 2011

    You are correct sir. The low side is the bigger connection and the only connection that the refill can with the hose will connect to with the quick connector attachment.

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