Dorman 604-164 HVAC Blend Door Actuator - Main

Overview of Dorman HVAC Blend Door Actuator 604-164

The Dorman HVAC Blend Door Actuator 604-164 is designed specifically for Cadillac CTS and SRX models. This rotary switch actuator is constructed from durable plastic, ensuring reliable operation within your vehicle's HVAC system.

• Rotary switch activation type for precise control
• Durable plastic material for long-lasting performance
• Compatible with Cadillac CTS and SRX HVAC systems
• Includes one actuator per package
• OEM-quality replacement part number 604-164

Detailed Product Description

This HVAC blend door actuator from Dorman operates using a rotary switch activation mechanism, which allows for smooth and accurate adjustment of the blend door position. Made from high-quality plastic, the actuator is engineered to withstand the temperature fluctuations and mechanical stresses typical in automotive HVAC environments. The part number 604-164 is tailored to fit Cadillac CTS and SRX models, providing a direct replacement for the original actuator to restore proper climate control functionality.

Common Applications and Problem Resolution

This actuator is used to control the blend door within the HVAC system, regulating the mix of hot and cold air to maintain the desired cabin temperature. It addresses several common issues, including:

• Inconsistent or incorrect cabin temperature regulation
• Unresponsive or stuck blend door movement
• HVAC system noise related to faulty actuators
• Failure of the rotary switch mechanism in blend door control
• Intermittent heating or cooling problems in Cadillac CTS and SRX vehicles

Installation Notes and Tips

Installation of the Dorman 604-164 blend door actuator requires access to the HVAC housing, typically located behind the dashboard. It is recommended to disconnect the vehicle battery before beginning installation to prevent electrical issues. Ensure the actuator is properly aligned with the blend door shaft and securely fastened to avoid operational problems. Calibration or reset of the HVAC system may be necessary after installation to ensure correct function.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance for Cadillac CTS and SRX HVAC systems. The 604-164 blend door actuator undergoes rigorous quality control testing to ensure durability and functionality. Warranty coverage details can be obtained from the product documentation or Dorman's official resources.