2003 Chevy Silverado Mode Door Actuator Replacement

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2003 chevy silverado mode door actuator replacement.

Equip cars trucks suvs with 2003 chevrolet silverado 1500 a c heater blend door actuator from autozone. There were codes b0263 and b3770 stored in the hvac module. The codes refer to mode actuator faults. A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit.

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. 2001 chevy silverado v8 four wheel drive automatic i have an 01 chevy silverado z71 and the heater control will not actuate to flow to the floor. A simple diagnosis of a code b0263 found a faulty mode actuator. To access the actuator the driver s side heater floor vent extension has to be removed.

This repair applies to 2003. The fan control works the thermostat works the direction control will direct to the windshied upper vent but will not go to the lower heat duct. The blend door actuator is located in the center of the core box up under the dash. Air door actuator replaces 89018365 604 106 52402588 compatible with chevrolet chevy gmc 1994 2012 silverado 1500 and 2500 tahoe sierra hvac blend control actuator heater blend door 4 6 out of 5 stars 1 147.

The mode door actuator is on the left and the resirc door actuator is at the top of the dash near the windshield. This 2003 chevrolet silverado came in with the air flow stuck on defrost.