K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
2. Disconnect the electrical connection at the mode actuator (10).
3. Remove the mode actuator mounting screws from the HVAC module.
4. Remove the mode actuator as an assembly with the actuator cam.
INSTALLATION PROCEDURE
1. Install the mode actuator as an assembly with the actuator cam.
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Line up the heater/defroster valve lever with the mode actuator cam slot.
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Line up the NC valve lever with the mode actuator cam.