Hummer H2. Manual - part 1156

2004 ELECTRICAL

Engine Electrical - Hummer H2 

SPECIFICATIONS 

FASTENER TIGHTENING SPECIFICATIONS 

Fastener Tightening Specifications 

BATTERY USAGE 

Battery Usage 

Application

Specification

Metric

English

Battery Cable Bracket Bolt

25 N.m

18 lb ft

Battery Cable Channel Bolt

12 N.m

106 lb in

Battery Hold Down Retainer Bolt

25 N.m

18 lb ft

Battery Tray Bolt

9 N.m

80 lb in

Battery Tray Nut

25 N.m

18 lb ft

Engine Wiring Harness Auxiliary Negative Battery Cable Bolt

16 N.m

12 lb ft

Engine Wiring Harness Ground Bolt

16 N.m

12 lb ft

Engine Wiring Harness Ground/Negative Cable Bolt

25 N.m

18 lb ft

Front Axle Mounting Bracket Nut

95 N.m

70 lb ft

Forward Lamp Wiring Harness Ground/Negative Cable Bolt

9 N.m

80 lb in

Front End Diagonal Brace Bolt

9 N.m

80 lb in

Generator Bracket Bolt

50 N.m

37 lb ft

Generator Bolt

50 N.m

37 lb ft

Generator Cable Nut

9 N.m

80 lb in

Ground Strap Nut

9 N.m

80 lb in

Negative Battery Cable Bolt

17 N.m

13 lb ft

Positive Battery Cable Bolt

17 N.m

13 lb ft

Positive Cable Nut

9 N.m

80 lb in

Positive Cable at Underhood Bussed Electrical Center (UBEC) Bolt

9 N.m

80 lb in

Starter Bolt

50 N.m

37 lb ft

Starter Lead Nut

3.4 N.m

30 lb in

Surge Tank Bolt/Nut

9 N.m

80 lb in

Transmission Cover Bolt

9 N.m

80 lb in

Base

Cold Cranking Amperage (CCA)

880 A

Reserve Capacity Rating

115 Minutes

Replacement Battery Number

79-6YR

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

STARTER MOTOR USAGE 

Starter Motor Usage 

GENERATOR USAGE 

Generator Usage 

SCHEMATIC AND ROUTING DIAGRAMS 

STARTING AND CHARGING SCHEMATICS 

Fig. 1: Starting Schematics 
Courtesy of GENERAL MOTORS CORP.

Applications

Starter Model

6.0L (LQ4)

PG-260L

Base

Generator Model

Delphi AD244

Rated Output

145 A

Load Test Output

102 A

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

Fig. 2: Charging Schematics 
Courtesy of GENERAL MOTORS CORP. 

COMPONENT LOCATOR 

ENGINE ELECTRICAL COMPONENT VIEWS 

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

Fig. 3: Engine Electrical Component Views 
Courtesy of GENERAL MOTORS CORP. 

Callouts For Fig. 3 

Callout

Component Name

1

Generator

2

Junction Block - Battery Cable

3

G100

4

Starter Solenoid

5

Starter

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2