Hummer H2. Manual — part 1926
Fig. 1: Belt Routing (H2)
Courtesy of GENERAL MOTORS CORP.
ENGINE COOLING
SERVICE
Specifications
COOLING SYSTEM SPECIFICATIONS
Application
Specification
Coolant Capacity
14.8 Qts. (14.0L)
2004 Hummer H2
2004 SPECIFICATIONS H2
Torque Specifications
TORQUE SPECIFICATIONS
FUEL SYSTEM
FUEL PRESSURE
Specifications
FUEL PRESSURE SPECIFICATIONS
IGNITION SYSTEM
Coolant Replacement Intervals
(1)
150,000 Miles
Thermostat Opening Temperatures
Thermostat Starts To Open
188°F (87°C)
Thermostat Fully Open
206°F (97°C)
(1)
Or every 60 months, whichever comes first. Use GM Goodwrench DEX-COOL(R).
Applications
Ft. Lbs. (N.m)
Coolant Heater
37 (50)
Fan Clutch Bolt
17 (23)
Fan Clutch Nut
41 (56)
Oil Cooler Hose Bracket Bolt
18 (25)
Radiator Bolt
18 (25)
Thermostat Housing Bolt
11 (15)
Water Pump Bolt
First Pass
11 (15)
Final Pass
22 (30)
INCH Lbs. (N.m)
Air Cleaner Outlet Duct Clamp Screw
62 (7)
Coolant Air Bleed Pipe Stud/Bolt
106 (12)
Coolant Heater Cord Bolt
71 (8)
Fan Shroud Bolt
80 (9)
Oil Cooler Hose Adapter Bolt
106 (12)
Surge Tank Bolt/Nut
80 (9)
Transmission Control Module (TCM) Cover Bolt
80 (9)
Transmission Control Module (TCM) Electrical Connector Bolt
71 (8)
Application
psi (kPa)
6.0L
55-62 (379-427)
2004 Hummer H2
2004 SPECIFICATIONS H2
FIRING ORDER
Fig. 2: Firing Order (4.8L, 5.3L, 6.0L & 8.1L)
Courtesy of GENERAL MOTORS CORP.
HIGH TENSION WIRES
Resistance Specifications
HIGH TENSION WIRE RESISTANCE
IGNITION TIMING
SPARK PLUGS
NOTE:
Vehicle is equipped with a coil on each spark plug.
Application
Ohms
6.0L
1000 Per Foot
NOTE:
Ignition timing is not adjustable.
2004 Hummer H2
2004 SPECIFICATIONS H2
All Specifications
SPARK PLUG SPECIFICATIONS
STARTING SYSTEM
STARTER
Service Applications
STARTER MOTOR APPLICATIONS
Torque Specifications
TORQUE SPECIFICATIONS
Application
Specification
Spark Plug Type
AC 25171803
NGK 12567759
Gap
0.060" (1.52 mm)
Tightening Torque
11 Ft. Lbs. (15 N.m)
Firing Order
1-8-7-2-6-5-4-3
Application
Specification
Starter Type
PG-260L
Application
Ft. Lbs. (N.m)
Battery Cable Bracket Bolt
18 (25)
Battery Hold Down Retainer Bolt
18 (25)
Battery Tray Nut
18 (25)
Engine Wiring Harness Auxiliary Negative Battery Cable Bolt
12 (16)
Engine Wiring Harness Ground Bolt
12 (16)
Engine Wiring Harness Ground/Negative Cable Bolt
18 (25)
Negative Battery Cable Bolt
13 (17)
Positive Battery Cable Bolt
13 (17)
Starter Bolt
37 (50)
INCH Lbs. (N.m)
Battery Cable Channel Bolt
106 (12)
Battery Tray Bolt
80 (9)
Ground Strap Nut
80 (9)
Positive Cable Nut
80 (9)
Positive Cable at Underhood Bussed Electrical Center (UBEC) Bolt
80 (9)
Starter Lead Nut
30 (3.4)
2004 Hummer H2
2004 SPECIFICATIONS H2
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