Hummer H2. Manual - part 1380

J 38125 

Terminal Repair Kit

J 38125-5 

Ultra Torch

J 39200 

Digital Multimeter

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems - Hummer H2

  

J 42675 

Flat-Wire Probe Adapter

J 43244 

Relay Puller Pliers

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems - Hummer H2

  

2004 ENGINE

Engine Cooling - Hummer H2 

SPECIFICATIONS 

FASTENER TIGHTENING SPECIFICATIONS 

Fastener Tightening Specifications 

SCHEMATIC AND ROUTING DIAGRAMS 

ENGINE COOLING SCHEMATICS 

Application

Specification

Metric

English

Air Cleaner Outlet Duct Clamp Screw (4.8L, 5.3L, and 6.0L Engines)

7 N.m

62 lb in

Air Cleaner Outlet Duct Wingnut (4.3L Engine)

3 N.m

27 lb in

Coolant Air Bleed Pipe Stud/Bolt (4.8L, 5.3L, and 6.0L Engines)

12 N.m

106 lb in

Coolant Heater Cord Bolt

8 N.m

71 lb in

Coolant Heater Bolt (4.3L Engine)

2 N.m

18 lb in

Coolant Heater (4.8L, 5.3L, 6.0L Engines)

50 N.m

37 lb ft

Engine Block Coolant Drain Plug (4.3L Engine)

20 N.m

15 lb ft

Engine Coolant Temperature Sensor (6.6L Engine)

33 N.m

24 lb ft

Fan Clutch Bolt

23 N.m

17 lb ft

Fan Clutch Nut

56 N.m

41 lb ft

Fan Shroud Bolt

9 N.m

80 lb in

Fan and Water Pump Pulley Bolt (4.3L Engine)

25 N.m

18 lb ft

Oil Cooler Hose Adapter Bolt (6.0L Engine)

12 N.m

106 lb in

Oil Cooler Hose Bracket Bolt (6.0L Engine)

25 N.m

18 lb ft

Radiator Bolt

25 N.m

18 lb ft

Surge Tank Bolt/Nut

9 N.m

80 lb in

Thermostat Housing Bolt (4.8L, 5.3L, and 6.0L Engines)

15 N.m

11 lb ft

Transmission Control Module (TCM) Cover Bolt

9 N.m

80 lb in

Transmission Control Module (TCM) Electrical Connector Bolt

8 N.m

71 lb in

Water Outlet Stud (4.3L Engine)

25 N.m

18 lb ft

Water Pump Bolt (4.3L Engine)

45 N.m

33 lb ft

Water Pump Bolt (First Pass) (4.8L, 5.3L, and 6.0L Engines)

15 N.m

11 lb ft

Water Pump Bolt (Final Pass) (4.8L, 5.3L, and 6.0L Engines)

30 N.m

22 lb ft

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 1: Engine Cooling Schematics 
Courtesy of GENERAL MOTORS CORP. 

COMPONENT LOCATOR 

COOLING SYSTEM COMPONENT VIEWS 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2