Chevrolet Silverado / GMC Sierra. Service manual — part 2329

Tighten: Tighten the switch to 6 N.m (53 lb in).

3. Connect the electrical connector to the A/C low pressure switch.

4. Leak test the fittings of the components using the J 39400-A . See Special Tools.

AIR CONDITIONING (A/C) REFRIGERANT PRESSURE SENSOR REPLACEMENT (NON-HP2)
HP2)

Tools Required

J 39400-A Halogen Leak Detector. See Special Tools.

Removal Procedure

Fig. 62: View Of A/C High Pressure Recirculation Switch
Courtesy of GENERAL MOTORS CORP.

1. Disconnect the electrical connector from the A/C refrigerant pressure sensor.

2. Remove the A/C refrigerant pressure sensor (1) from the condenser tube.

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Installation Procedure

Fig. 63: View Of A/C High Pressure Recirculation Switch
Courtesy of GENERAL MOTORS CORP.

1. Install the A/C refrigerant pressure sensor (1).

Tighten: Tighten the switch to 6 N.m (53 lb in).

2. Connect the electrical connector to the A/C refrigerant pressure sensor.

3. Leak test the fittings of the components using the J 39400-A . See Special Tools.

4. Lower the vehicle.

CONDENSER REPLACEMENT

Special Tools

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

J 39400-A Halogen Leak Detector. See Special Tools.

Removal Procedure

Fig. 64: Radiator Support Bolts
Courtesy of GENERAL MOTORS CORP.

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.

2. Remove the fascia.

3. Remove radiator support bolts (1). Access the bolts from the rear of the upper radiator

support. Refer to Radiator Support Replacement .

4. Remove radiator support bracket bolts (1).

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 65: View Of Discharge Hose At Condenser
Courtesy of GENERAL MOTORS CORP.

5. Remove the compressor discharge hose assembly bolt from the condenser.

6. Disconnect the compressor discharge hose assembly from the condenser.

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado