GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2009
🢒
Express - AWD
🢒
HVAC
🢒
Heating, Ventilation, and Air Conditioning
🢒 Mode Door Replacement - Lower
Removal Procedure
Remove the instrument panel carrier. Refer to
Instrument Panel Carrier Replacement
.
Disconnect the vacuum hose from the lower mode actuator (2).
Remove the lower mode actuator (2) from the heater assembly (4).
Remove the linkage from the lower mode actuator (2).
Remove the heater case screws.
Remove the outer heater case.
Remove the lower mode door (1) from the inner heater case (2).
Installation Procedure
Install the lower mode door (1) to the inner heater case (2).
Install the outer heater case.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the heater case retaining screws and tighten to
1.9 N·m (17 lb in)
.
Install the linkage to the lower mode actuator (2).
Install the lower mode actuator (2) to the heater assembly.
Connect the vacuum hose to the lower mode actuator (2).
Install the instrument panel carrier. Refer to
Instrument Panel Carrier Replacement
.