Chevrolet Silverado / GMC Sierra. Service manual — part 2355

AIR TEMPERATURE ACTUATOR REPLACEMENT - RIGHT SIDE

Fig. 6: View Of Air Temp Actuator & Screws
Courtesy of GENERAL MOTORS CORP.

Service Positioning (Without SLT) or Instrument Panel Service Positioning
(With SLT) .

2. Disconnect the electrical connector from the air temp actuator.

1

Air Temp Actuator Screw (Qty: 2)

Tighten: 1.6 N.m (14 lb in)

NOTE:

Refer to Fastener Notice .

2

Air Temp Actuator
Procedure:
Re-calibrate the air temp actuator. Refer to Actuator Recalibration.

Callout

Component Name

2008 Chevrolet Silverado 1500

2008 HVAC HVAC - Manual - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

AIR TEMPERATURE ACTUATOR REPLACEMENT - LEFT SIDE

Preliminary Procedure

1. Remove the instrument panel to the service position. Refer to Instrument Panel

Service Positioning (Without SLT) or Instrument Panel Service Positioning
(With SLT) .

2. Disconnect the electrical connector from the air temp actuator.

NOTE:

In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in
the HVAC module.

1

Air Temp Actuator Screw (Qty: 2)

Tighten: 1.6 N.m (14 lb in)

NOTE:

Refer to Fastener Notice .

2

Air Temp Actuator
Procedure:
Re-calibrate the air temp actuator. Refer to Actuator Recalibration.

2008 Chevrolet Silverado 1500

2008 HVAC HVAC - Manual - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 7: Air Temperature Actuator Replacement
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedure

1. Remove the instrument panel insulator. Refer to Instrument Panel Insulator

Replacement (with RPO SLT) or Instrument Panel Insulator Replacement
(without RPO SLT) .

2. Disconnect the electrical connector from the air temp actuator.

NOTE:

In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in
the HVAC module.

1

Air Temp Actuator Screw (Qty: 2)

Tighten: 1.6 N.m (14 lb in)

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 HVAC HVAC - Manual - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

MODE ACTUATOR REPLACEMENT

Fig. 8: View Of Mode Actuator & Screws
Courtesy of GENERAL MOTORS CORP.

2

Air Temp Actuator
Procedure:
Re-calibrate the air temp actuator. Refer to Actuator Recalibration .

Callout

Component Name

Preliminary Procedure

1. Remove the knee bolster. Refer to Knee Bolster Replacement (with RPO SLT) or

Knee Bolster Replacement (without RPO SLT) .

2. Remove the air outlet duct - floor LH. Refer to Floor Air Outlet Duct Replacement

- Left Side .

3. Disconnect the electrical connector from the mode actuator.

NOTE:

In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in
the HVAC module.

2008 Chevrolet Silverado 1500

2008 HVAC HVAC - Manual - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado