2004 Chevrolet Silverado, Changing The Mode Actuator

This 2004 Chevrolet Silverado came in with the complaint that the air only blows through the defrost  and will not blow out of any other location. There were codes B0263 and B3770 stored in the HVAC module. The codes refer to mode actuator faults. To access the actuator, the driver’s side heater floor vent extension … Continue reading “2004 Chevrolet Silverado, Changing The Mode Actuator”