Review on Four Seasons 38904 Orifice Tube: 🚗 Optimal Performance for Your Automotive Cooling System by Matthew Peterson

This is the solution to many air conditioning problems caused by improper pressure control in the system. This orifice tube's auto-tuning feature better controls system pressure by allowing valve restriction to be varied based on system requirements, resulting in fewer compressor cycles, more consistent discharge temperatures, and longer compressor life. There may also be a slight increase in fuel consumption due to fewer compressor cycles. Four Seasons Model #38904 is designed for heavy-duty use (for temperatures above 105 F) and is REQUIRED for the desert climate of the Southwest. NOTE: When opening the A/C unit for repair -- *Protect your compressor!* ALWAYS replace the battery/drier with a NEW one at the same time! Much luck !