GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
HUMMER
🢒
2007
🢒
H3
🢒
Engine
🢒 Engine Controls and Fuel - 3.7L
Engine
All Component Locator
Engine Controls Component Views
All Description and Operation
Air Intake System Description
Camshaft Actuator System Description
Electronic Ignition (EI) System Description
Evaporative Emission Control System Description
Fuel System Description
Knock Sensor (KS) System Description
Powertrain Control Module Description
Secondary Air Injection System Description
Throttle Actuator Control (TAC) System Description
All Special Tools and Equipment
Special Tools
All Visual Identification
Engine Controls Connector End Views
Powertrain Control Module Connector End Views
Cleaning, Inspection, and Adjustment
Fuel Injector Cleaning
Fuel System Cleaning
Spark Plug Inspection
Diagnostic Procedures
Alcohol/Contaminants-in-Fuel Diagnosis
Backfire
Cuts Out, Misses
Detonation/Spark Knock
Diagnostic Starting Point - Engine Controls
Dieseling, Run-On
Electronic Ignition (EI) System Diagnosis
Engine Cranks But Does Not Run
Fuel Injector Circuit Diagnosis
Fuel Injector Diagnosis
Fuel Pump Electrical Circuit Diagnosis
Fuel System Diagnosis
Fuel Tank Leak Test
Hard Start
Hesitation, Sag, Stumble
Inspection/Maintenance (I/M) Catalyst System Set Procedure
Inspection/Maintenance (I/M) Complete System Set Procedure
Inspection/Maintenance (I/M) System Check
Inspection/Maintenance (I/M) System DTC Table
Inspection/Maintenance Evaporative Emission System Set
Inspection/Maintenance Heated Oxygen Sensor Heater System Set
Inspection/Maintenance Heated Oxygen Sensor/Oxygen Sensor System Set
Intermittent Conditions
Lack of Power, Sluggishness, or Sponginess
Malfunction Indicator Lamp (MIL) Always On
Malfunction Indicator Lamp (MIL) Inoperative
Poor Fuel Economy
Poor Fuel Fill Quality
Powertrain Relay Diagnosis
Rough, Unstable, or Incorrect Idle and Stalling
Service Bay Test
Surges/Chuggles
Symptoms - Engine Controls
Diagnostic Trouble Codes
DTC P0013
DTC P0014
DTC P0016
DTC P0017
DTC P0030, P0036, P0135, or P0141
DTC P0053 or P0054
DTC P0068
DTC P0101
DTC P0102
DTC P0103
DTC P0106
DTC P0107
DTC P0108
DTC P0112
DTC P0113
DTC P0116
DTC P0117
DTC P0118
DTC P0120 or P0220
DTC P0121
DTC P0122
DTC P0123
DTC P0125
DTC P0128
DTC P0130, P0131, P0132, P0133, P0134, P0136, P0137, P0138, P0140, P1133, or P1134
DTC P0171
DTC P0172
DTC P0201, P0202, P0203, P0204, or P0205
DTC P0222
DTC P0223
DTC P0230
DTC P0300
DTC P0315
DTC P0325
DTC P0326
DTC P0327
DTC P0335
DTC P0336
DTC P0340
DTC P0341
DTC P0351-P0355
DTC P0365
DTC P0366
DTC P0411
DTC P0412 or P0418
DTC P0420
DTC P0442
DTC P0443
DTC P0446
DTC P0449
DTC P0451
DTC P0452
DTC P0453
DTC P0454
DTC P0455
DTC P0496
DTC P0506
DTC P0507
DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621, P1627, P1681, P1683, or P2610
DTC P060D
DTC P0641
DTC P0650
DTC P0651
DTC P1101
DTC P1106
DTC P1107
DTC P1111
DTC P1112
DTC P1114
DTC P1115
DTC P1380
DTC P1381
DTC P1516
DTC P1682
DTC P2101
DTC P2119
DTC P2120
DTC P2122
DTC P2123
DTC P2125
DTC P2127
DTC P2128
DTC P2135
DTC P2138
DTC P2176
DTC P2430-P2433
DTC P2440
DTC P2444
DTC P2A00
DTC P2A01
Electrical/Electronic Schematic Diagrams
Engine Controls Schematic Icons
Engine Controls Schematics
Electrical/Electronic Specifications
Altitude Versus Barometric Pressure
Ignition System Specifications
Temperature Versus Resistance
Gas, Vacuum and Fluids Schematics and Diagrams
Emission Hose Routing Diagram
Evaporative Emissions Hose Routing Diagram
General Diagnostic Information
Scan Tool Data Definitions
Scan Tool Data List
Scan Tool Output Controls
Mechanical Specifications
Fastener Tightening Specifications
Removal, Installation, and Replacement
Accelerator Pedal Position Sensor Replacement
Air Cleaner Assembly Replacement
Air Cleaner Element Replacement
Air Cleaner Outlet Duct Replacement
Air Cleaner Resonator and Outlet Duct Replacement
Camshaft Position Actuator Solenoid Valve Replacement
Camshaft Position Sensor Replacement - Exhaust
Camshaft Position Sensor Replacement - Intake
Crankshaft Position Sensor Replacement
Crankshaft Position System Variation Learn
Engine Coolant Temperature Sensor Replacement
Evaporative Emission Canister Purge Solenoid Valve Replacement
Evaporative Emission Canister Replacement
Evaporative Emission Canister Vent Solenoid Valve Replacement
Evaporative Emission Hose/Pipe Replacement - Fuel Tank
Evaporative Emission Hoses/Pipes Replacement - Canister/Fuel Tank
Evaporative Emission Hoses/Pipes Replacement - Engine
Evaporative Emission Hoses/Pipes Replacement - Engine/Chassis
Fuel Hose/Pipes Replacement - Chassis
Fuel Injection Fuel Rail Assembly Replacement
Fuel Injector Replacement
Fuel Level Sensor Replacement
Fuel Pressure Gage Installation and Removal
Fuel Pressure Relief
Fuel Tank Draining
Fuel Tank Filler Hose Replacement
Fuel Tank Module Replacement
Fuel Tank Pressure Sensor Replacement
Fuel Tank Replacement
Heated Oxygen Sensor Replacement - Sensor 1
Heated Oxygen Sensor Replacement - Sensor 2
Ignition Coil Replacement
Knock Sensor Replacement
Manifold Absolute Pressure Sensor Replacement
Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
Metal Collar Quick Connect Fitting Service
Plastic Collar Quick Connect Fitting Service
Powertrain Control Module Replacement
Secondary Air Injection Check Valve Replacement
Secondary Air Injection Pump Inlet Hose Replacement
Secondary Air Injection Pump Outlet Hose Replacement
Secondary Air Injection Pump Replacement
Spark Plug Replacement
Throttle Body Assembly Replacement