Hummer H2. Manual — part 2119

Fig. 23: Reservoir Assembly & Pump Housing Assembly
Courtesy of GENERAL MOTORS CORP.

6. Connect the reservoir assembly (1) to the pump housing assembly (2).

7. Install the O-ring seal.

2004 Hummer H2

2004 STEERING Power Steering System - Hummer H2

Fig. 24: Connector & Fitting Assembly
Courtesy of GENERAL MOTORS CORP.

8. Install the connector and fitting assembly (4) to the pump housing (1).

9. Install the pump mounting studs (2) to the pump housing (1).

Tighten: Tighten the pump mounting studs to 58 N.m (44 lb ft).

10. Tighten the connector and fitting assembly.

Tighten: Tighten the connector and fitting assembly to 75 N.m (55 lb ft).

POWER STEERING PUMP FLOW CONTROL VALVE REPLACEMENT - OFF VEHICLE
(REGULAR)

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

2004 STEERING Power Steering System - Hummer H2

Disassembly Procedure

Fig. 25: Power Steering Pump Flow Control Valve Assembly & Pump Housing
Courtesy of GENERAL MOTORS CORP.

1. Drain the oil from the reservoir (1).

2. Remove the control valve assembly (3) from the pump housing (1). Make sure the flow control spring (4)

does not fall out of the pump housing (1).

3. Remove the rectangular section seal (2) from the control valve assembly (3).

Assembly Procedure

2004 Hummer H2

2004 STEERING Power Steering System - Hummer H2

Fig. 26: Power Steering Pump Flow Control Valve Assembly & Pump Housing
Courtesy of GENERAL MOTORS CORP.

1. Install the flow control spring (4) if removed from the pump housing (1).

2. Lubricate the new rectangular section seal (2) with power steering fluid.

3. Install the rectangular section seal (2) onto the control valve assembly (3).

4. Install the control valve assembly (3).

POWER STEERING COOLER REPLACEMENT

Removal Procedure

1. Open the hood.

2. Place a drain pan under the vehicle.

3. Siphon the fluid from the reservoir to prevent excess spillage.

2004 Hummer H2

2004 STEERING Power Steering System - Hummer H2