- Faulty blend door or actuator: The blend door is a flap that controls the mix of hot and cold air that enters the cabin. If the blend door or its actuator is faulty, it may not be able to properly regulate the temperature, resulting in cold air on one side and hot air on the other.
- Vacuum issues: The climate control system in your truck uses vacuum lines to operate the blend doors and other components. If there is a vacuum leak, it can cause problems with the temperature control, leading to different temperatures on the driver's and passenger's sides.
- Sensor issues: The climate control system relies on sensors to determine the temperature inside the cabin and adjust the airflow accordingly. If a temperature sensor is faulty, it may be providing incorrect readings, causing the system to malfunction and deliver cold air on one side and hot air on the other.
- Control panel problems: The climate control control panel is responsible for regulating the temperature, fan speed, and mode of operation. If there is a malfunction in the control panel, it may not be able to properly send signals to the blend door and other components, leading to temperature differences between the driver's and passenger's sides.
- Refrigerant leak: If there is a refrigerant leak in the air conditioning system, it can reduce the system's ability to cool the air, resulting in cold air on the passenger's side and hot air on the driver's side.
To diagnose the exact cause of the problem, it is recommended to take your truck to a qualified mechanic or auto repair shop. They will be able to properly diagnose the issue and perform any necessary repairs or replacements.
