Hummer H1 (2002+). Manual — part 266

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Index 14-11

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05745159

Steering Specifications . . . . . . . . . . . . . . . . . . . 8-44

Steering Gear Adjustment Preload Torques 8-44
Steering Pump Flow Rates and

Operating Pressures . . . . . . . . . . . . . . . . . 8-44

Torque Specifications . . . . . . . . . . . . . . . . 8-44

Steering Stop Adjustment . . . . . . . . . . . . . . . . 6-29
Steering System

Center Link Replacement . . . . . . . . . . . . . . 8-3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Essential Tools . . . . . . . . . . . . . . . . . . . . . . 8-45
Idler Arm Replacement . . . . . . . . . . . . . . . . 8-6
Pitman Arm Replacement . . . . . . . . . . . . . . 8-2
Power Steering

Cooler and Hose Replacement . . . . . . . 8-17
Fluid Reservoir Replacement . . . . . . . . 8-16
Gear Adjustments . . . . . . . . . . . . . . . . . 8-36
Gear Assembly and Adjustment . . . . . 8-30
Gear Cleaning and Inspection . . . . . . . 8-28
Gear Disassembly and Overhaul . . . . . 8-23
Hydraulic System Pressure . . . . . . . . . 8-16
Power Steering Gear Service . . . . . . . . 8-18
Pressure Test . . . . . . . . . . . . . . . . . . . . 8-22
Pump and Pulley Replacement . . . . . . 8-15
Purging Air from the System . . . . . . . . 8-22
System Diagnosis Charts . . . . . . . . . . . 8-19
System Flushing . . . . . . . . . . . . . . . . . . 8-44

Special Tools . . . . . . . . . . . . . . . . . . . . . . . 8-46
Steering Column

Ignition Interlock Cable Replacement . 8-11
Ignition Switch Lock Cylinder . . . . . . . 8-11
Lock and Switch Housing . . . . . . . . . . . 8-8
Multi-Switch Replacement . . . . . . . . . . 8-8
Steering Column Repair . . . . . . . . . . . . . 8-9
Steering Column Replacement . . . . . . . 8-7
Steering Gear Replacement . . . . . . . . . 8-12
Steering Wheel Hub/ Column Shroud . 8-10

Steering Wheel Replacement . . . . . . . . . . . . 8-6
Tie Rod End Replacement . . . . . . . . . . . . . . 8-4
Tie Rod Replacement . . . . . . . . . . . . . . . . . . 8-5

Surge Tank

Overflow Hose Replacement . . . . . . . . . . . 4-11
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Tank-to-Lower Radiator Tube Hose . . . . . 4-12
Tank-to-Radiator Vent Hose . . . . . . . . . . . . 4-8

Suspension System

Control Arm Bushing Replacement . . . . . . . 9-7
Frame Extension Replacement . . . . . . . . . 9-47
Front Bumper and Towing Brackets . . . . . 9-45
Front Bumper Mounting Bracket . . . . . . . . 9-46
Lower Ball Joint Replacement . . . . . . . . . . . 9-5
Lower Control Arm Replacement . . . . . . . . 9-7
Radius Rod Replacement . . . . . . . . . . . . . . . 9-3
Rear Upper Control Arm Bracket . . . . . . . 9-58
Stabilizer Bar Link Replacement . . . . . . . . . 9-2
Stabilizer Bar Replacement . . . . . . . . . . . . . 9-2
Upper Ball Joint Replacement . . . . . . . . . . . 9-4
Upper Control Arm Replacement . . . . . . . . 9-5

T

Tachometer Replacement . . . . . . . . . . . . . . . . 10-19
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-72

Chain Brackets Replacement . . . . . . . . . . 10-72
Chain Replacement . . . . . . . . . . . . . . . . . 10-73
Tailgate and Seals Replacement . . . . . . . 10-72

Thermostat Bypass Hose Replacement . . . . . . . 4-8
Thermostat Replacement . . . . . . . . . . . . . . . . . 4-13
Timing Chain/Drive Sprockets/Drive Gear . . . 2-57
Timing Chain-Sprocket-Gear Installation . . . . 2-85
Tire Jack

Jack and Triangle Warning Kit

Hold-Down Bracket Replacement . . . 10-64

Tone Wheel Replacement . . . . . . . . . . . . . . . . 7-50
Torque Converter/Oil Pump Seal . . . . . . . . . . 5-139
Torsional Damper . . . . . . . . . . . . . . . . . . . . . . 2-21
Torsional Damper/Crankshaft Pulley . . . . . . . 2-93
Towing

Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Conventional Towing Procedures . . . . . . . 1-19
Hoisting the Vehicle . . . . . . . . . . . . . . . . . 1-17
Recommendations . . . . . . . . . . . . . . . . . . . 1-18
Recreational . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Vehicle Lifting/Jacking Points . . . . . . . . . . 1-17
When Keys Are Not Available . . . . . . . . . 1-19

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14-12

Index

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Towing, Lifting, Jump Starting . . . . . . . . . . . . 1-17
Trailer Hitch Replacement . . . . . . . . . . . . . . . 13-20
Trailer Towing Connector . . . . . . . . . . . . . . . 13-19
Transfer Case

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5-170
Cleaning and Inspection . . . . . . . . . . . . . . 5-165
Description . . . . . . . . . . . . . . . . . . . . . . . . 5-149
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 5-151
Disassembly and Overhaul . . . . . . . . . . . 5-157
Fluid Change . . . . . . . . . . . . . . . . . . . . . . 5-155
Fluid Level . . . . . . . . . . . . . . . . . . . . . . . . 5-150
Guide Cable Replacement . . . . . . . . . . . . 5-154
Identification . . . . . . . . . . . . . . . . . . . . . . 5-150
Identification Number . . . . . . . . . . . . . . . . . 1-5
Installation . . . . . . . . . . . . . . . . . . . . . . . . 5-156
Oil Cooler . . . . . . . . . . . . . . . . . . . . . . . . . 5-150
Operating Ranges . . . . . . . . . . . . . . . . . . . 5-151
Recommended Lubricant . . . . . . . . . . . . . 5-150
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 5-156
Shift Rod Service . . . . . . . . . . . . . . . . . . . 5-153
Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-151
Speed Sensor and Switch Replacement . . 5-154
Torque Specifications . . . . . . . . . . . . . . . 5-181
Vent Line Replacement . . . . . . . . . . . . . . 5-153

Transmission

Cooler Line and Bypass Valve Service . . 5-133
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Line Pressure Test . . . . . . . . . . . . . . . . 5-15
Pressure Control Solenoid Test . . . . . . 5-15
Road Test . . . . . . . . . . . . . . . . . . . . . . . 5-12

Electronic Shift Control Components . . . . . 5-3
Engine Sensor Inputs . . . . . . . . . . . . . . . . . . 5-9
Essential Tools . . . . . . . . . . . . . . . . . . . . . 5-182
Fill Tube Replacement . . . . . . . . . . . . . . . 5-133
Fluid Temperature Sensor . . . . . . . . . . . . . . 5-6
Gear Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Gear Ratios . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Identification . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Input and Output Speed Sensors . . . . . . . . . 5-6
Input Speed Sensor Replacement . . . . . . . 5-148
Installation . . . . . . . . . . . . . . . . . . . . . . . . 5-142
Park Lock Component Service . . . . . . . . 5-137

Park/Neutral Position Switch

Replacement . . . . . . . . . . . . . . . . . . . . . . 5-145

Pressure Control Solenoid . . . . . . . . . . . . . . 5-8
Rear Mount Replacement . . . . . . . . . . . . 5-148
Recommended Fluid . . . . . . . . . . . . . . . . . 5-15
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 5-139
Scan Tool Diagnosis . . . . . . . . . . . . . . . . . 5-18
Serviceability . . . . . . . . . . . . . . . . . . . . . . . 5-11
Shift Rod Replacement . . . . . . . . . . . . . . 5-147
Shift Solenoids . . . . . . . . . . . . . . . . . . . . . . . 5-7
Shifter Boot Cover Replacement . . . . . . . 5-146
Special Tools . . . . . . . . . . . . . . . . . . . . . . 5-183
Torque Converter . . . . . . . . . . . . . . . . . . . . . 5-9
Torque Converter Clutch Solenoid . . . . . . . 5-8
Torque Specifications . . . . . . . . . . . . . . . 5-181
Valve Body Switch and Solenoid Service 5-136
Vent Line Service . . . . . . . . . . . . . . . . . . 5-134
Warning Lamps . . . . . . . . . . . . . . . . . . . . . 5-13

Transmission Identification . . . . . . . . . . . . . . . . 1-4
Transmission Passthrough, 20 way . . . . . . . . . 5-42
Transmission, 10 Way, Black . . . . . . . . . . . . . 5-41
Transmission, 10 Way, Grey . . . . . . . . . . . . . . 5-40
Turbocharger

Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Installation . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Service and Diagnosis . . . . . . . . . . . . . . . . 2-15

Turbocharger and Center Manifold Removal . 2-52
Turbocharger and Intake Manifold . . . . . . . . . 2-93

U

Underbody Protection . . . . . . . . . . . . . . . . . . 13-14

Front Shield Replacement . . . . . . . . . . . . 13-15
Intermediate Shield Replacement . . . . . . 13-16
Rear Shield Replacement . . . . . . . . . . . . . 13-17
Skid Plate Replacement . . . . . . . . . . . . . . 13-14
Transfer Case Shield Replacement . . . . . 13-17

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Index 14-13

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05745159

V

Vacuum Pump Service . . . . . . . . . . . . . . . . . . . 2-44
Valve Lifter

Installation . . . . . . . . . . . . . . . . . . . . . . . . . 2-88
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55
Replacement . . . . . . . . . . . . . . . . . . . . . . . . 2-41

Vehicle Identification Number

Decoding Chart . . . . . . . . . . . . . . . . . . . . . . 1-6

Vehicle Identification Number (VIN) . . . . . . . . 1-5
Visor Replacement . . . . . . . . . . . . . . . . . . . . . 10-34

W

Water Crossover

Installation . . . . . . . . . . . . . . . . . . . . . . . . . 2-92
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52

Water Crossover Service . . . . . . . . . . . . . . . . . 4-15
Water Leak Detection and Repair . . . . . . . . . 10-12
Water Pump

Inlet Hose Replacement . . . . . . . . . . . . . . . 4-11

Water Pump and Adapter Plate . . . . . . . .4-13, 4-14
Water Pump and Adapter Plate Installation . . . 2-87
Water Pump and Adapter Plate Removal . . . . 2-56
Weathercap Replacement . . . . . . . . . . . . . . . . . 3-22
Wheels and Tires

Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Checking Wheel Alignment . . . . . . . . . . . . 6-25
One-Piece Aluminum Wheel and

Two-Piece Runflat Service . . . . . . . . . . . . 6-12

Special Tools . . . . . . . . . . . . . . . . . . . . . . . 6-56
Tire, Two-Piece Wheel, and Runflat

Replacement . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Troubleshooting . . . . . . . . . . . . . . . . . . . . . 6-20
Wheel Alignment . . . . . . . . . . . . . . . . . . . . 6-22
Wheel Alignment Correction . . . . . . . . . . . 6-26
Wheel and Tire Assembly Replacement . . . 6-1
Wheel Half Stud Replacement . . . . . . . . . . 6-10
Wheel Runout Inspection . . . . . . . . . . . . . . 6-20

Winch

Assembly Repair . . . . . . . . . . . 9-72, 9-81, 13-3
Cable Replacement . . . . . . . . . 9-71, 9-80, 13-2
Electric Thermal Switch/Brush

Assembly . . . . . . . . . . . . . . . . 9-76, 9-85, 13-7

Replacement . . . . . . . . . . . . . . . 9-70, 9-79, 13-1
Troubleshooting . . . . . . . . . . . . . . . . .9-70, 13-1

Windshield . . . . . . . . . . . . . . . . . . . . . .12-83, 12-84

Assembly Maintenance . . . . . . . . . . . . . . 10-54
Glass and Weatherstrip Replacement . . . 10-53
Heated Windshield . . . . . . . . . . . . . . . . . . 10-55
Reservoir and Pump Assembly . . . . . . . . 10-58
Washer Hoses Replacement . . . . . . . . . . . 10-58
Washer Nozzle Replacement . . . . . . . . . . 10-58
Washer System and Components . . . . . . . 10-58
Windshield Assembly . . . . . . . . . . . . . . . 10-53
Wiper Jumper Harness Replacement . . . . 10-58
Wiper Linkage Replacement . . . . . . . . . . 10-57
Wiper Motor Assembly Replacement . . . 10-56
Wiper Pivot Replacement . . . . . . . . . . . . 10-57
Wiper System and Components . . . . . . . . 10-56

Wipers

Rear Window Wiper Inoperative . . . . . . . 12-87
Rear Wiper Motor Schematic . . . . . . . . . 12-89
Windshield Wiper Motor Inoperative

All Speeds . . . . . . . . . . . . . . . . . . . . . . . . 12-83

Windshield Wipers Intermittent Speeds

Inoperative . . . . . . . . . . . . . . . . . . . . . . . 12-84

Wiper/Washer Schematic . . . . . . . . . . . . . 12-86

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14-14

Index

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