Four Seasons 38622 A/C Expansion Valve - Front or Rear

Reliable A/C Expansion Valve for Select GM and Chrysler Vehicles

The Four Seasons Expansion Valve 38622 is designed to regulate refrigerant flow in automotive air conditioning systems using R134a refrigerant. This brass TXV valve ensures precise superheat control, helping maintain optimal A/C performance in vehicles like the Chevrolet Camaro, Buick LeSabre, and Pontiac Grand Prix.

• Constructed from durable brass for long-lasting use
• Compatible with R134a refrigerant systems
• TXV (Thermostatic Expansion Valve) type for accurate refrigerant metering
• Superheat setting of 10.5 for efficient cooling
• Fits a wide range of GM and Chrysler models including Chevrolet Impala and Cadillac DeVille

About the Four Seasons Expansion Valve Product Line

The Expansion Valve line from Four Seasons focuses on precise refrigerant flow control within automotive A/C systems. This product line features TXV valves engineered to maintain consistent superheat levels, which is critical for preventing compressor damage and ensuring efficient cooling. The 38622 valve is part of this line, offering reliable performance for vehicles using R134a refrigerant.

Detailed Product Description

The Four Seasons 38622 A/C Expansion Valve is a thermostatic expansion valve (TXV) made from brass, designed specifically for vehicles equipped with R134a refrigerant. The valve controls the amount of refrigerant entering the evaporator by responding to temperature changes, maintaining a superheat of 10.5. This precise control helps optimize the air conditioning system’s efficiency and protects the compressor from liquid slugging. Compatible with various makes and models such as the Chevrolet Caprice, Pontiac Firebird, and Dodge Monaco, this valve is a direct replacement part that meets OEM specifications.

Common Applications and Issues Addressed

• Restores proper refrigerant flow in A/C systems experiencing cooling inefficiency
• Prevents compressor damage caused by incorrect superheat levels
• Resolves issues with inconsistent cabin temperature control
• Eliminates symptoms of refrigerant flooding or starvation in the evaporator
• Improves overall air conditioning system reliability in Buick, Cadillac, and Chevrolet vehicles

Installation Notes and Tips

• Ensure system is evacuated and free of contaminants before installation
• Verify compatibility with vehicle make and model prior to replacement
• Use proper tools to avoid damage to the brass valve body
• Follow manufacturer torque specifications for fittings
• Recharge the system with R134a refrigerant after installation

Quality Assurance and Warranty

Four Seasons Expansion Valve 38622 is manufactured to meet industry standards for durability and performance. The brass construction and TXV design provide reliable operation under normal vehicle conditions. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Consult product packaging or manufacturer resources for exact warranty terms.