GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1996
🢒
Sonoma Pickup - 2WD
🢒
Engine
🢒 Engine Controls - 4.3L (VIN W)
Engine
All Component Locator
Engine Controls Components
All Description and Operation
Air Induction System
Crankcase Ventilation System
Enhanced Ignition System
Evaporative Emission Control System
Exhaust Gas Recirculation (EGR) System
Fuel System
Information Sensors
Knock Sensor (KS) System
Vehicle Control Module
All Special Tools and Equipment
Special Tools
All Visual Identification
Engine Controls Connector End Views
Cleaning, Inspection, and Adjustment
Fuel Injector Cleaning
Fuel System Cleaning
Diagnostic Procedures
Air Conditioning (A/C) Compressor Clutch Control Diagnosis
Backfire
Crankcase Ventilation System Diagnosis
Cuts Out, Misses
Detonation/Spark Knock
Dieseling, Run-On
Engine Cranks But Does Not Run
Enhanced Ignition System Diagnosis
Evaporative Emission Control System Diagnosis
Exhaust Gas Recirculation (EGR) System Diagnosis
Fuel Injector Balance Test
Fuel Injector Solenoid Coil Test
Fuel Pump Electrical Circuit Diagnosis
Fuel System Pressure Test
Hard Start
Hesitation, Sag, Stumble
Important Preliminary Checks
Injector Circuit Diagnosis
Intermittent Conditions
Knock Sensor (KS) System Diagnosis
Lack of Power, Sluggishness, or Sponginess
Malfunction Indicator Lamp Circuit
Manual Transmission Shift Light
No Serial Data
Poor Fuel Economy
Powertrain On Board Diagnostic (OBD) System Check
Restricted Exhaust System Check
Rough, Unstable, or Incorrect Idle and Stalling
Surges/Chuggles
Vehicle Control Module Diagnosis
Diagnostic Trouble Codes
DTC P0101 Mass Air Flow (MAF) Sensor Performance
DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
DTC P0106 Manifold Absolute Pressure (MAP) System Performance
DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
DTC P0121 Throttle Position (TP) Sensor Performance
DTC P0122 Throttle Position (TP) Sensor Circuit Low Voltage
DTC P0123 Throttle Position (TP)Sensor Circuit High Voltage
DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control
DTC P0131 HO2S Circuit Low Voltage Sensor 1
DTC P0132 HO2S Circuit High Voltage Sensor 1
DTC P0133 HO2S Slow Response Sensor 1
DTC P0134 HO2S Circuit Insufficient Activity Sensor 1
DTC P0135 HO2S Heater Performance Sensor 1
DTC P0137 HO2S Circuit Low Voltage Sensor 2
DTC P0138 HO2S Circuit High Voltage Sensor 2
DTC P0140 HO2S Circuit Insufficient Activity Sensor 2
DTC P0141 HO2S Heater Performance Sensor 2
DTC P0143 HO2S Circuit Low Voltage Bank 1 Sensor 3
DTC P0144 HO2S Circuit High Voltage Bank 1 Sensor 3
DTC P0146 HO2S Circuit Insufficient Activity Bank 1 Sensor 3
DTC P0147 HO2S Heater Performance Bank 1 Sensor 3
DTC P0151 HO2S Circuit Low Voltage Bank 2 Sensor 1
DTC P0152 HO2S Circuit High Voltage Bank 2 Sensor 1
DTC P0153 HO2S Slow Response Bank 2 Sensor 1
DTC P0154 HO2S Circuit Insufficient Activity Bank 2 Sensor 1
DTC P0155 HO2S Heater Performance Bank 2 Sensor 1
DTC P0171 Fuel Trim System Lean Bank 1
DTC P0172 Fuel Trim System Rich Bank 1
DTC P0174 Fuel Trim System Lean Bank 2
DTC P0175 Fuel Trim System Rich Bank 2
DTC P0300 Engine Misfire Detected
DTC P0301 Cylinder 1 Misfire Detected
DTC P0302 Cylinder 2 Misfire Detected
DTC P0303 Cylinder 3 Misfire Detected
DTC P0304 Cylinder 4 Misfire Detected
DTC P0305 Cylinder 5 Misfire Detected
DTC P0306 Cylinder 6 Misfire Detected
DTC P0325 Knock Sensor Module Performance
DTC P0327 Knock Sensor Circuit Low Voltage
DTC P0336 Crankshaft Position (CKP) Sensor Performance
DTC P0337 Crankshaft Position (CKP) Sensor Circuit Low Duty Cycle
DTC P0338 Crankshaft Position (CKP) Sensor Circuit High Duty Cycle
DTC P0339 Crankshaft Position (CKP) Sensor Circuit Intermittent
DTC P0340 Camshaft Position (CMP) Sensor Circuit
DTC P0341 Camshaft Position (CMP) Sensor Performance
DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient
DTC P0420 Catalyst System Low Efficiency Bank 1
DTC P0440 Evaporative Emission (EVAP) System
DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected
DTC P0446 Evaporative Emission (EVAP) Vent System Performance
DTC P0461 Fuel Level Sensor Performance
DTC P0463 Fuel Level Sensor Circuit High Voltage
DTC P0500 Vehicle Speed Sensor (VSS) Circuit
DTC P0506 Idle Speed Low
DTC P0507 Idle Speed High
DTC P0704 Clutch Switch Circuit
DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage
DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage
DTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage
DTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage
DTC P1133 HO2S Insufficient Switching Bank 1 Sensor 1
DTC P1134 HO2S Transition Time Ratio Bank 1 Sensor 1
DTC P1153 HO2S Insufficient Switching Bank 2 Sensor 1
DTC P1154 HO2S Transition Time Ratio Bank 2 Sensor 1
DTC P1345 Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation
DTC P1351 Ignition Coil Control Circuit High Voltage
DTC P1361 Ignition Control (IC) Circuit Low Voltage
DTC P1380 Misfire Detected - Rough Road Data Not Available
DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance
DTC P1441 Evaporative Emission (EVAP) System Flow During Non-Purge
DTC P1508 Idle Speed Low - Idle Air Control (IAC) System Not Responding
DTC P1509 Idle Speed High - Idle Air Control (IAC) System Not Responding
Electrical/Electronic Schematic Diagrams
Engine Controls Schematic Icons
Engine Controls Schematic References
Engine Controls Schematics
Electrical/Electronic Specifications
Temperature Versus Resistance
Gas, Vacuum and Fluids Schematics and Diagrams
Emission Hose Routing Diagram
General Diagnostic Information
Fuel System Diagnosis
Strategy Based Diagnostic Flow
Mechanical Specifications
Fastener Tightening Specifications
Other Specifications
Engine Scan Tool Data Definitions
Engine Scan Tool Data List
GM SPO Group Numbers
Removal, Installation, and Replacement
Accelerator Controls
Air Cleaner
Air Cleaner Element
Carbon Particle Removal from Evaporative Emission System
Controlled Idle Speed
Crankcase Ventilation System
Crankshaft Position Sensor Replacement
EEPROM Programming
Engine Coolant Temperature Sensor Replacement
Evaporative Emission Canister Hoses
Evaporative Emission Canister Purge Solenoid
Evaporative Emission Canister Replacement
Evaporative Emission Vent Valve Replacement
Exhaust Gas Recirculation Valve Replacement
Fuel Hose and Pipes
Fuel Injector Replacement
Fuel Meter Body Assembly
Fuel Pressure Regulator Replacement
Fuel Pressure Relief
Fuel Pressure Service Valve Replacement
Fuel Pump Relay Replacement
Fuel Sender Assembly Replacement
Fuel Tank Pressure Sensor Replacement
Fuel Tank Replacement
Heated Oxygen Sensor Replacement
Idle Air Control Valve Replacement
In-Line Fuel Filter Replacement
Intake Air Temperature Sensor Replacement
Knock Sensor Module Replacement
Knock Sensor Replacement
Manifold Absolute Pressure Sensor Replacement
Mass Airflow Sensor Replacement
Oil Pressure Switch
Throttle Body Assembly Replacement
Throttle Position Sensor Replacement
VCM Replacement/Programming