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 3 (ENGINE CONTROLS AND FUEL - 4.3L (LV1) - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSSPARK PLUG WIRE REPLACEMENTINSTALLATION PROCEDURE
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
Installation Procedure
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Installation Procedure
WARNING: This page is about a different variant/trim than selected.
Perform the following steps at each end of the spark plug wire (1).
- Inspect the inside of the spark plug wire boot for a thin, even coat of dielectric grease. If there is no grease present or additional grease is necessary, continue to the next step.
- Apply a thin coating of dielectric grease to the inside of the spark plug wire boot up to a depth of 15 mm (0.60 in) from the end of the boot. Adhesives, Fluids, Lubricants, and Sealers
- Remove any excess dielectric grease from around the end of the spark plug wire boot and ensure there is not an excessive amount within the boot.
Perform the following steps to install the spark plug wire (1) to the ignition coil:
- Push the spark plug wire boot onto to the ignition coil until two audible clicks are heard.
- Push sideways on the spark plug wire boot to ensure the it does not disengage from the ignition coil.
Perform the following steps to install the spark plug wire (1) to the spark plug:
- Push the spark plug wire boot onto to the spark plug.
- Push sideways on the spark plug wire boot to ensure the it does not disengage from the spark plug.
- Engine Cover - Install - Engine Cover Replacement
RENDER: 1.0x
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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.