Suburban 1/2 Ton 4WD V8-5.3L VIN Z Flex Fuel (2006)
Unlock the blower motor retaining tab, referring to graphic above, by pulling the retaining tab (1) down while turning the blower motor counterclockwise
in order to disengage the blower motor from the HVAC case.
Remove the blower motor.
Locate the partially loose foam from inside the HVAC case with a flashlight.
It may be necessary to cycle the air inlet door by placing the ignition switch into the run position and selecting the buttons on the HVAC control head
from outside air to recirculation mode.
If the foam is damaged, refer to Recirculation Door Replacement (Delphi) or Air Inlet Assembly Replacement in SI and do not proceed with the
following steps.
If the foam is not damaged, reach into the HVAC case and reattach the loose foam to the air recirculation door by using your hand to apply firm pressure
to the foam and door.
The recirculation door should have foam on both sides of the door to seal properly. Refer to the above graphic.
Confirm that the foam has been secured to the door by cycling between recirculation and outside air positions on the control head three times. Once
