GM R12 CYCLING PRESSURE SWITCH - FJC

The FJC 3203 GM R12 Cycling Pressure Switch is a crucial component engineered to maintain optimal performance in compatible automotive air conditioning systems. Designed for professional technicians, this switch ensures proper compressor cycling, preventing system damage, and enhancing AC efficiency in specific General Motors vehicles.

Key Features

• Precise 1/4" Switchport: Features a standard 1/4" switchport for direct fitment and reliable connection within R12 AC systems.
• GM R12 System Compatibility: Specifically engineered for use in General Motors vehicles from 1978 to 1993, utilizing R12 refrigerant.
• Optimized Compressor Control: Regulates the AC compressor's on/off cycles, activating at 47 psi and deactivating at 28 psi, which prevents evaporator freeze-up and ensures consistent cooling performance.
• Accumulator Mounted: Designed to mount directly on the system's accumulator, facilitating straightforward and accurate installation.
• Durable Construction: Built with professional-grade materials to withstand demanding automotive environments, offering long-term reliability.
• Restores System Integrity: Essential for accurate AC system diagnosis and repair, ensuring all components operate within their specified parameters for peak efficiency.

Applications

This cycling pressure switch is ideal for professional mechanics performing service and repair on classic or vintage General Motors vehicles equipped with R12 air conditioning systems manufactured between 1978 and 1993. It serves as a direct replacement for failed or inconsistent original equipment switches, restoring proper AC compressor operation and overall system functionality. The FJC 3203 is also relevant for AC systems that have undergone an R12 to R134a retrofit, as these conversions often require careful consideration of cycling pressure adjustments.