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 MANUALSCHEVROLET2014EXPRESS 2500 BASE, VAN CARGO, 6.6L ENG VIN LREPAIR AND DIAGNOSISENGINE PERFORMANCETUNE-UPENGINE CONTROLS AND FUEL - 6.6L (LGH) - REPAIR INSTRUCTIONSREPAIR INSTRUCTIONSEMISSION REDUCTION FLUID SUPPLY PUMP MODULE REPLACEMENTINSTALLATION PROCEDURE
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN L
Installation Procedure
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN LSECTION Installation Procedure
- Carefully install the new supply pump to reservoir cover o-ring seals. Position the smaller o-ring seal (1) over the port on the underside of the supply pump and position the larger o-ring seal (2) into the port on the reservoir cover.
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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.