Chevrolet Silverado / GMC Sierra. Manual — part 1687
2008 ENGINE
Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Application
Specification
Metric
English
Air Conditioning (A/C) Compressor/Condenser
Hose Bracket Bolt (4.3L)
25 N.m
18 lb ft
Auxiliary Battery Hold Down Bolt (6.2L, 6.6L)
25 N.m
18 lb ft
Auxiliary Battery Negative Cable Ground to
Cylinder Head Bolt (6.2L)
25 N.m
18 lb ft
Auxiliary Battery Positive Cable Nut (6.2L)
7.5 N.m
66 lb in
Auxiliary Battery Positive Cable to Auxiliary
Battery Relay Nut (6.2L)
9 N.m
80 lb in
Auxiliary Battery Positive Cable to Auxiliary Relay
Nut (6.2L)
7.5 N.m
66 lb in
Auxiliary Battery Positive Cable to Mega Fuse
Holder Nut (6.2L)
9 N.m
80 lb in
Auxiliary Battery Positive Cable to Underhood
Junction Block Nut (6.2L)
5 N.m
44 lb in
Auxiliary Battery Relay Nut (6.2L)
9 N.m
80 lb in
Auxiliary Battery Tray Bolt (6.2L, 6.6L)
9 N.m
80 lb in
Auxiliary Generator Bolt (6.6L)
50 N.m
37 lb ft
Auxiliary Generator Bracket Bolt (6.6L)
50 N.m
37 lb ft
Auxiliary Negative Battery Cable Nut (6.2L, 6.6L)
7.5 N.m
66 lb in
Battery Hold Down Retainer Bolt
25 N.m
18 lb ft
Battery Tray to Battery Tray Bracket Nut
20 N.m
15 lb ft
Battery Tray to Front Fender Inner Panel Nut
9 N.m
80 lb in
Battery Tray Front Support Bolt
20 N.m
15 lb ft
Engine Ground Strap to Cylinder Head Bolt
16 N.m
12 lb ft
Engine Ground Strap to Front Plenum Panel Nut
9 N.m
80 lb in
Engine Wiring Harness to Generator Bracket Clip
Bolt (6.6L)
10 N.m
89 lb in
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Engine Wiring Harness to Generator Nut (4.3L,
6.6L)
9 N.m
80 lb in
Engine Wiring Harness Ground to Engine Block
Bolt (6.6L)
25 N.m
18 lb ft
Engine Wiring Harness Clip to Generator Bracket
Bolt (4.8L, 5.3L, 6.0L, 6.2L)
9 N.m
80 lb in
Engine Wiring Harness Lead Nut
3.4 N.m
30 lb in
Forward Lamp Wiring Harness Ground Bolt
25 N.m
18 lb ft
Front Fender Rear Upper Brace Bolt
9 N.m
80 lb in
Fuel Feed Pipe Bracket Bolt (6.6L)
24 N.m
18 lb ft
Generator Battery Jumper Cable to Generator Nut
(4.8L, 5.3L, 6.0L, 6.2L)
9 N.m
80 lb in
Generator Battery Jumper Cable to Mega Fuse Nut
(4.8L, 5.3L, 6.0L, 6.2L)
9 N.m
80 lb in
Generator Bolt (4.3L, 6.6L)
50 N.m
37 lb ft
Generator Bolt (4.8L, 5.3L, 6.0L, 6.2L)
55 N.m
41 lb ft
Generator Bracket Bolt (4.8L, 5.3L, 6.0L, 6.2L,
6.6L)
50 N.m
37 lb ft
Generator Bracket Bolt/Nut (4.3L)
41 N.m
30 lb ft
Heater Inlet Hose to Fuel Filter Adapter Nut (6.6L)
9 N.m
80 lb in
Heater Inlet Hose Bracket to Generator Bracket Nut
(6.6L)
9 N.m
80 lb in
Heater Outlet Hose Clamp Bolt (4.3L)
25 N.m
18 lb ft
Idler Pulley Bolt (6.6L)
50 N.m
37 lb ft
M Terminal Stud Nut (6.6L)
8 N.m
71 lb in
Negative Battery Cable to Engine Block Bolt (4.3L)
25 N.m
18 lb ft
Negative Battery Cable Nut (w/Dual Batteries)
7.5 N.m
66 lb in
Negative Battery Cable Nut (Primary)
5 N.m
44 lb in
Negative Battery Cable to Cylinder Head Stud
(4.8L, 5.3L, 6.0L, 6.2L)
25 N.m
18 lb ft
Oil Level Indicator Tube Bolt (6.6L)
21 N.m
15 lb ft
Oil Level Indicator Tube Bracket Bolt (6.6L)
21 N.m
15 lb ft
Oil Pan Skid Plate Bolt
28 N.m
21 lb ft
Positive Battery Cable Clip Nut (6.6L)
3 N.m
27 lb in
Positive Battery Cable to Mega Fuse Nut (6.6L)
7.5 N.m
66 lb in
Starter Motor Bolt (4.3L, 4.8L, 5.3L, 6.0L, 6.2L)
50 N.m
37 lb ft
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
BATTERY USAGE
Light Duty and Auxiliary Batteries
Heavy Duty, Snow Plow, and Dual Generators
GENERATOR USAGE
145-Amp Generator (KG3)
160-Amp Generator (KW1)
Starter Solenoid Bolt (6.6L)
10 N.m
89 lb in
Starter Solenoid Cable Clip Bolt (4.3L, 4.8L, 5.3L,
6.0L, 6.2L)
10 N.m
89 lb in
Starter Solenoid Cable to Battery Nut
5 N.m
44 lb in
Starter Solenoid Cable Bracket Nut (6.6L)
8 N.m
71 lb in
Starter Solenoid Cable Channel Bolt (6.6L)
12 N.m
106 lb in
Starter Solenoid Cable to Engine Block Bolt (6.6L)
25 N.m
18 lb ft
Starter Solenoid Cable to Frame Bolt (6.6L)
25 N.m
18 lb ft
Starter Solenoid Cable Clip to Frame Bolt (6.6L)
16 N.m
12 lb ft
Starter Solenoid Cable to Mega Fuse Nut (4.3L,
4.8L, 5.3L, 6.0L, 6.2L)
9 N.m
80 lb in
Starter Solenoid Cable Nut
5 N.m
44 lb in
Starter Solenoid Cable to Positive Battery Nut
(6.6L)
7.5 N.m
66 lb in
Starter Solenoid Cable to Starter Nut (6.6L)
9 N.m
80 lb in
Transmission Cover Bolt (4.8L, 5.3L, 6.0L, 6.2L)
9 N.m
80 lb in
Cold Cranking Amperage (CCA)
615 A
Reserve Capacity Rating
120 Minutes
Replacement Battery Number
48-6YR
Cold Cranking Amperage (CCA)
765 A
Reserve Capacity Rating
120 Minutes
Replacement Battery Number
48-7YR
Generator Model
Remy DR44M
Rated Output
145 A
Load Test Output
102 A
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
SCHEMATIC AND ROUTING DIAGRAMS
STARTING AND CHARGING SCHEMATICS
Fig. 1: Starting
Courtesy of GENERAL MOTORS CORP.
Generator Model
Remy DR44M
Rated Output
160 A
Load Test Output
112 A
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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