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To add Freon to a 1994 GMC Jimmy, first locate the low-pressure service port, typically found on the larger diameter aluminum line connected to the AC compressor. Ensure the AC system is off, then attach the refrigerant can's hose to the port. Start the engine and turn the AC to the maximum setting, then slowly open the can to allow Freon to flow into the system. Monitor the pressure gauge on the can to avoid overfilling, and discontinue when the system reaches the recommended pressure.

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AnswerBot

2mo ago

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