Section 1646 (Engine Control System & Fuel System - 4.8L, 5.3L, 6.0L, 6.2L - Troubleshooting And Diagnosis)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Symptoms - Engine Controls
- Diagnostic Instructions
- Symptoms Description
- Symptoms Definition
- Symptoms Verification
  - Notes
  - Identifying Intermittent Conditions
- Symptoms Testing
- Additional Symptoms Tests
- Poor Fuel Fill Quality
Malfunction Indicator Lamp (MIL) Diagnosis
- Diagnostic Instructions
- Circuit/System Description
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
Engine Cranks But Does Not Run
- Diagnostic Instructions
- Circuit/System Description
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Repair Procedures
Poor Fuel Fill Quality
Fuel Injector Diagnosis (CH47976)
- Diagnostic Instructions
- Circuit/System Description
- Reference Information
- Component Testing
  - Fuel Injector Coil Test
- Repair Procedures
Fuel Injector Diagnosis (J39021 or Scan Tool)
- Diagnostic Instructions
- Circuit/System Description
- Diagnostic Aids
- Reference Information
- Component Testing
  - Fuel Injector Coil Test
- Repair Procedures
Fuel Pump Electrical Circuit Diagnosis (Without FPCM)
- Diagnostic Instructions
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
Fuel Pump Electrical Circuit Diagnosis (with FPCM)
- Diagnostic Instructions
- Diagnostic Fault Information
- Circuit/System Description
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
Fuel System Diagnosis (Without FPCM)
- Diagnostic Instructions
- Circuit/System Description
  - Notes
  - Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
Fuel System Diagnosis (FPCM)
- Diagnostic Instructions
- Circuit/System Description
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
Fuel Composition Diagnosis
- System Description
Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool)
- Description
- Alcohol in Fuel Testing Procedure
- Particulate Contaminants in Fuel Testing Procedure
Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool)
- Description
- Test Procedure
Electronic Ignition System Diagnosis
- Diagnostic Instructions
- Circuit/System Description
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
Evaporative Emission System Diagnosis
- Operating Instructions for the Evaporative Emission System Tester (EEST)
- Flowmeter Test - Leak Detection
- Smoke Procedure - Locate the Leak
- Temperature Variation Instructions
Cylinder Deactivation (Active Fuel Management) System Diagnosis
- Diagnostic Instructions
- Circuit Description
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
  - Electrical System Testing
  - Mechanical System Testing
- Repair Procedures
Inspection/Maintenance System Check
- Diagnostic Instructions
- Description
- Conditions for Updating the I/M System Status
- Conditions for Clearing I/M Test DTCs
- Monitored Emission Control Systems
- Diagnostic Aids
- Circuit/System Verification
- Circuit/System Testing
Inspection/Maintenance Complete System Set Procedure
- Diagnostic Instructions
- Description
- Conditions for Meeting a Cold Start
- Circuit/System Verification
- Inspection/Maintenance (I/M) System Set Procedure
Inspection/Maintenance (I/M) Test DTC Table
Service Bay Test
- Diagnostic Instructions
- Description
- Conditions for Running the Test
- Test Procedure