Four Seasons 36675 A/C Clutch Cycle Switch

Reliable Pressure Switch for Select GM Vehicles

The Four Seasons Pressure Switch part number 36675 is designed to maintain optimal A/C system performance in various Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. This cycling A/C clutch cycle switch ensures proper pressure regulation to protect your vehicle's HVAC system.

• Compatible with Buick Regal, Chevrolet Blazer, GMC Yukon, Pontiac Grand Am, and other models
• Pressure switch with system mount design for easy installation
• Operates at low pressure on/off points of 44 psi and 20 psi respectively
• Durable plastic and metal construction with black finish
• Weather Pack connector with round shape and 2 male pin terminals
• 7/16 in. x 20 female fitting thread size
• Meets or exceeds OEM specifications for reliable performance
• 12-volt cycling pressure switch for A/C clutch control

About the Four Seasons Pressure Switch Product Line

The Four Seasons Pressure Switch line focuses on precision cycling switches designed to regulate refrigerant pressure within automotive HVAC systems. The 36675 model is part of this line, providing accurate pressure sensing and cycling control to maintain system efficiency and protect components from pressure extremes. This ensures consistent A/C clutch engagement and system longevity across compatible GM vehicles.

Detailed Product Description

This A/C clutch cycle switch features a system mount design with a female fitting thread size of 7/16 in. x 20, allowing secure attachment to the HVAC system. The switch is constructed from a combination of plastic and metal materials, finished in black for corrosion resistance. It includes a Weather Pack round connector with two male pin terminals, designed for reliable electrical connections in harsh environments. The switch opens at 0 psi and cycles the A/C clutch on at 44 psi and off at 20 psi, maintaining proper refrigerant pressure and preventing compressor damage.

Common Applications and Issues Addressed

• Prevents A/C compressor cycling issues caused by incorrect pressure sensing
• Protects HVAC system components from damage due to pressure extremes
• Resolves intermittent A/C clutch engagement problems in Buick, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles
• Helps maintain consistent cabin cooling performance
• Addresses system mount pressure switch failures in models like Chevrolet C1500 Suburban and GMC K2500

Installation Notes and Tips

• Ensure vehicle compatibility with Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models listed
• Verify correct thread size (7/16 in. x 20) before installation
• Use appropriate tools to avoid damaging the female fitting or terminals
• Check electrical connections for secure fit with the Weather Pack round connector
• Follow vehicle manufacturer guidelines for A/C system service and pressure switch replacement

Quality Assurance and Warranty

The Four Seasons Pressure Switch 36675 meets or exceeds OEM standards, ensuring dependable operation and durability. Manufactured with high-quality plastic and metal components, this switch is designed to withstand typical automotive environmental conditions. While specific warranty details may vary, Four Seasons products generally include coverage against defects in materials and workmanship to provide confidence in your purchase.