Question about 2004 Pontiac Grand Am

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No freon left want to replace with red tek 12a need to know where the lowservice is located

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Find the A/C compressor. You will see a large line and a small line. Follow the larger line all the way back to the firewall. You will see what looks like a tire valve stem with a cap on it. That is you low side refrigerent service port.
Regards,

Posted on Jul 19, 2009

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