There were codes b0263 and b3770 stored in the hvac module.
2003 chevy silverado mode door actuator replacement.
The mode actuator is on passenger side.
The codes refer to mode actuator faults.
Sparkys answers 2003 chevrolet silverado changing the mode actuator code b0263.
You will need a tool set including an 5 5 mm socket for chevy gmc cadillac ford and lincoln vehicles.
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.
To access the actuator the driver s side heater floor vent extension has to be removed.
Air door actuator replaces 15 73952 52495593 89018374 604 112 compatible with chevy gmc cadillac hummer 2003 2014 models hvac blend control actuator air heater blend door 4 6 out of 5 stars 368.
There is a replacement mode or blend actuator available at most auto parts stores dorman part 604 107 price 39 99.
But try pulling fuse first for hvac sometimes it resets the actuators.
Remove the lower dash panel or glove box.
You can get an oem replacement actuator from amazon for what the garages pay for them in most cases.
Remove the mode actuator as an assembly with the actuator cam.
If you look under the dash from the driver s side you will see the mode actuator.
Equip cars trucks suvs with 2003 chevrolet silverado 1500 a c heater blend door actuator from autozone.