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A/C System Performance

NOTE: High and low pressure readings may vary slightly due to changes in ambient temperature and humidity conditions.

Connect manifold gauge set. Set engine idle to 1500 RPM. Set blower fan on high speed. Set temperature control switch at maximum cool position. With airflow set in recirculated mode, ensure temperature at air inlet is 86-95°F (30-35°C). Ensure pressure readings are within specifications. See SPECIFICATIONS  table at beginning of article.

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