Mechanics

A/C AND HEAT MODE DOOR ACTUATOR

2002 Cadillac Deville

Air Conditioning problem
2002 Cadillac Deville V8 Front Wheel Drive Automatic 52000 miles

were under the dash and how do you replace a mode door actuator
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Jjmoe
August 2, 2010.



The mode actuator should be under the dash near the left side temp actuator. It shows in the procedure to remove the instrument panel carrier, which I am not sure whether or not is necessary. I can't remember ever replacing a mode actuator. At the bottom is a recalibration procedure, try doing that first and see if operation is restored.

Mode Valve Actuator Replacement
Removal Procedure
Caution: Refer to SIR Handling Caution in the Preface section.

Remove the instrument panel carrier. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gauge, and Console.
Important: The left air temperature actuator does not need to be removed in order to remove the mode actuator.

The left air temperature actuator is removed in the graphic in order to show the screw locations.

Remove the mode actuator retaining screws (1).
Remove the mode actuator.

Note the position of the door levers to the cam.
The mode door levers must be in the same position in order to reassemble the mode actuator to the HVAC case.

Installation Procedure

The mode door levers must be in the this position in order to reassemble the mode actuator to the HVAC case.
Lubricate the pivots on the mode door levers and the channels on the mode actuator cam before assembling.

Align the mode door levers with the cam slots, as noted on disassembly.
Install the mode actuator to the HVAC module.
Notice: Refer to Fastener Notice in the Preface section.

Install the mode actuator retaining screws (1).
Tighten
Tighten the screws to 1.4 N ·m (12 lb in).

Install the instrument panel carrier. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gauge, and Console.
Re-calibrate the actuators. Refer to Actuator Recalibration.

Calibration Procedure without a Scan Tool
Turn OFF the ignition.
Remove the battery positive voltage circuit fuse of the Instrument Panel Control Module.
Important: The module memory will not clear if the battery positive voltage circuit fuse is installed in less than 60 seconds.

Wait 60 seconds.
Install the fuse.

Factoryjack
Aug 2, 2010.