Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 24 (ENGINE CONTROLS AND FUEL - 4.3L (LV1) - DIAGNOSTIC INFORMATION AND PROCEDURES (2 OF 2))DIAGNOSTIC INFORMATION AND PROCEDURESINSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURECIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
Circuit/System Verification
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
- Ignition - On / Vehicle - In Service Mode
- Verify the following procedure was performed: Inspection/Maintenance System Check .
- If the procedure was not performed
Refer to Inspection/Maintenance System Check .
- If the procedure was performed NOTE: Do NOT skip any step before the DTC status is complete, otherwise the process must be repeated.
- If the procedure was not performed
- Verify the scan tool parameter: Cold Start-Up = Yes
- If not the specified state
Ignition/Vehicle - Off - For greater than 8 h & Repeat this step
- If the specified state
- If not the specified state
- Verify the scan tool parameter: EVAP Monitor - Since DTCs Cleared = Complete
- If not the specified state
- Perform the following procedure/test: Evaporative Emission System Diagnosis
- Verify the scan tool parameter: EVAP Monitor - Since DTCs Cleared = Complete
- If not the specified state - Repeat the procedure starting at step 1
- If the specified state
- Refer to the next step
- If the specified state
- If not the specified state
- Ignition/Vehicle - Off - For greater than 8 h
- Verify the scan tool parameter: Cold Start-Up = Yes
- If not the specified state
Ignition/Vehicle » Off - For greater than 8 h & Repeat this step
- If the specified state
- If not the specified state
- Ignition - On / Vehicle - In Service Mode - For 1 min
- Engine - Idling - For 2 minWARNING: Road test a vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury and vehicle damage.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.