Hummer H3. Manual — part 1270

2. Install the electrical center cover.

RECEIVER DEHYDRATOR REPLACEMENT

Fig. 23: Receiver Dehydrator Replacement
Courtesy of GENERAL MOTORS CORP.

Receiver Dehydrator Replacement

Callout

Component Name

Preliminary Procedures

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

2. Remove the radiator air baffle assembly. Refer to Radiator Air Baffle Assemblies

and Deflectors .

1

Receiver Dehydrator Screw

Tighten: 1.6 N.m (14 lb in)

NOTE:

Refer to Fastener Notice .

2

Receiver Dehydrator Bracket

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

THERMAL EXPANSION VALVE REPLACEMENT (LEFT HAND DRIVE)

Fig. 24: Thermal Expansion Valve Replacement (Left Hand Drive)
Courtesy of GENERAL MOTORS CORP.

Thermal Expansion Valve Replacement (Left Hand Drive)

3

Receiver Dehydrator Screw

Tighten: 1.6 N.m (14 lb in)

4

Receiver Dehydrator O-Ring
Refer to O-Ring Replacement.

5

A/C Receiver and Dehydrator Assembly

Callout

Component Name

Preliminary Procedure:
Recover the A/C system. Refer to Refrigerant Recovery and Recharging.

1

Compressor Suction Hose to TXV Nut

Tighten: 16 N.m (12 lb ft)

NOTE:

Refer to Fastener Notice .

2

Sealing Washer
Tip: Remove and discard the sealing washer. Refer to Sealing Washer
Replacement.

Thermal Expansion Valve Bolt

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

THERMAL EXPANSION VALVE REPLACEMENT (RIGHT HAND DRIVE)

Fig. 25: Thermal Expansion Valve Replacement (Right Hand Drive)
Courtesy of GENERAL MOTORS CORP.

Thermal Expansion Valve Replacement (Right Hand Drive)

3

Tighten: 16 N.m (12 lb ft)

4

Sealing Washer
Tip: Remove and discard the sealing washer. Refer to Sealing Washer
Replacement.

5

Thermal Expansion Valve

Callout

Component Name

Preliminary Procedure:
Recover the A/C system. Refer to Refrigerant Recovery and Recharging.

Compressor Suction Hose to TXV Nut

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

AIR CONDITIONING (A/C) REFRIGERANT PRESSURE SENSOR REPLACEMENT (LEFT HAND
HAND DRIVE)

Fig. 26: Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (Left Hand
Drive)
Courtesy of GENERAL MOTORS CORP.

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (Left Hand Drive)

1

Procedure:
Remove and discard the sealing washer. Refer to Sealing Washer
Replacement.

Tighten: 16 N.m (12 lb ft)

2

Thermal Expansion Valve Bolt (Qty: 2)

Tighten: 16 N.m (12 lb ft)

3

Thermal Expansion Valve
Procedure:
Remove and discard the sealing washer. Refer to Sealing Washer
Replacement.

Callout

Component Name

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3