Hummer H2. Manual - part 2110

2004 STEERING

Power Steering System - Hummer H2 

SPECIFICATIONS 

FASTENER TIGHTENING SPECIFICATIONS 

Fastener Tightening Specifications 

POWER STEERING PUMP SPECIFICATIONS 

Power Steering Pump Specifications 

COMPONENT LOCATOR 

POWER STEERING GEAR COMPONENT VIEWS (700 GEAR) 

Application

Specification

Metric

English

Adjuster Lock Nut

44 N.m

32 lb ft

Ball Guide Clamp Screws

6 N.m

53 lb in

Coupling Shield Retainer and Lock Nut

109 N.m

80 lb ft

Pitman Arm to Steering Gear Nut

250 N.m

184 lb ft

Power Steering Cooler Mounting Bolts

5 N.m

44 lb in

Power Steering Gear To Frame Bolts

150 N.m

111 lb ft

Power Steering Pump Bracket Retaining Nuts

50 N.m

37 lb ft

Power Steering Pump Connector and Fitting Assembly

75 N.m

55 lb ft

Power Steering Pump Front Mounting Bolts

50 N.m

37 lb ft

Power Steering Pump Mounting Studs

54 N.m

44 lb ft

Power Steering Pump Rear Mounting Bolt

50 N.m

37 lb ft

Pressure Hose Connections - Threaded

28 N.m

21 lb ft

Rack Piston Plug

150 N.m

111 lb ft

Steering Gear Side Cover Bolts

60 N.m

45 lb ft

Worm Thrust Preload Adjustment Nut

30 N.m

22 lb ft

Engine 

Code

Engine 

Size

High Flow (Liters 

per Minute)

High Flow (Gallons 

per Minute)

Pressure Relief 

(kPa)

Pressure Relief 

(PSI)

LQ4

6.0L

15.9/17.7

3.5/3.9

9825/10514

1425/1525

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2

  

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2

  

Fig. 1: Power Steering Gear Component Views 
Courtesy of GENERAL MOTORS CORP. 

Callouts For Fig. 1 

Callout

Component Name

1

Retaining Ring

2

Plug

3

O-ring Seal

4

Side Cover

5

Adjuster Lock Nut

6

Bolt

7

Gasket

8

Pitman Shaft

9

Steering Gear Housing End Plug

10

Teflon Ring

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2

  

POWER STEERING PUMP COMPONENT VIEWS (REGULAR) 

11

O-ring Seal

12

Rack Piston

13

Balls

14

Ball Guide

15

Clamp

16

Screw

17

Housing

18

Check Valve

19

Flat Race

20

Thrust Bearing

21

Flat Race

22

Worm Shaft

23

Needle Bearing

24

Pitman Shaft Seal

25

Backup Washer

26

Retaining Ring

27

Dust Seal

28

Pitman Shaft Boot

29

Pitman Shaft Arm

30

Lock Washer

31

Nut

32

Seal

33

Stub Shaft

34

Valve Spool

35

Seal

36

Valve Body

37

O-ring Seal

38

Valve Body Ring

39

O-ring Seal

40

Valve Body Ring

41

O-ring Seal

42

Valve Body Ring

43

Coupling Shield Retainer and Lock Nut

44

Adjuster Nut Assembly

45

O-ring Seal

46

Thrust Support Assembly

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2

  

Fig. 2: Power Steering Pump Component Views 
Courtesy of GENERAL MOTORS CORP. 

Callouts For Fig. 2 

Callout

Component Name

1

O-ring Seal

2

Hydraulic Pump Housing Assembly

3

Magnet

4

O-ring Seals

5

Rectangular Section Seal

6

Control Valve

7

Flow Control Spring

8

Reservoir Assembly

9

Reservoir Capstick

10

Pump Mounting Studs

11

Variable Assist Steering Actuator

12

Retaining Ring

13

Connector and Fitting Assembly

14

O-ring Seal

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2