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Most GM AC's around that year mount the low pressure fitting on or near the receiver/dryer on the firewall. (it's the big silver tank that gets really cold when the AC is running right)

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โˆ™ 2005-11-02 17:29:58
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Q: Where is the low pressure fiting for the ac on a 1977 corvette?
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How do you check if the low pressure switch on a corvette 1977 is working?

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