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 DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 3 (ENGINE CONTROLS & FUEL - 4.8L (L20), 5.3L (LMF), OR 6.0L (L96 LC8) - REPAIR INSTRUCTIONS)
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN L
Section 3 (Engine Controls & Fuel - 4.8L (L20), 5.3L (LMF), Or 6.0L (L96 LC8) - Repair Instructions)
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN LSECTION Section 3 (Engine Controls & Fuel - 4.8L (L20), 5.3L (LMF), Or 6.0L (L96 LC8) - Repair Instructions)
WARNING: This page is about a different variant/trim than selected.
- Repair Instructions
- Notes
- Brake Pedal Position Sensor Learn
- Engine Control Module Replacement
- Crankshaft Position System Variation Learn
- Q38 Throttle Body: Throttle/Idle Learn
- Engine Coolant Temperature Sensor Replacement
- Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
- Manifold Absolute Pressure Sensor Replacement
- Heated Oxygen Sensor Replacement - Bank 1 Sensor 1
- Heated Oxygen Sensor Replacement - Bank 1 Sensor 2
- Heated Oxygen Sensor Replacement - Bank 2 Sensor 1
- Heated Oxygen Sensor Replacement - Bank 2 Sensor 2
- Accelerator Pedal Position Sensor Replacement
- Throttle Body Assembly Replacement
- Throttle Body Cleaning
- Fuel Pressure Gauge Installation and Removal
- Fuel Pressure Relief (CH-48027)
- Fuel Pressure Relief (Without CH-48027)
- Metal Collar Quick Connect Fitting Service
- Plastic Collar Quick Connect Fitting Service
- Fuel Pump Flow Control Module Replacement
- Fuel Tank Draining (L59)
- Fuel Tank Draining (Without L59)
- Fuel Tank Filler Pipe Replacement (LH Door)
- Fuel Tank Filler Pipe Replacement (Without LH Door)
- Fuel Tank Filler Pipe Replacement (Rear Tank)
- Fuel Tank Replacement (Cutaway Van Rear Tank)
- Fuel Tank Replacement (Cutaway Van Side Tank)
- Fuel Tank Replacement (Passenger/Cargo)
- Fuel Tank Pressure Sensor Replacement (Signle)
- Fuel Tank Pressure Sensor Replacement (Dual Tank)
- Fuel Tank Fuel Pump Module Replacement
- Fuel Level Sensor Replacement
- Fuel Hose/Pipe Assembly Replacement (Cutaway Van Rear Tank Fuel Tank Pipe)
- Fuel Hose/Pipe Assembly Replacement (Cutaway Van Side Tank)
- Fuel Hose/Pipe Assembly Replacement (Passenger/Cargo Van Fuel Tank Pipes)
- Fuel Line Replacement - Chassis (Cutaway Van Rear Tank)
- Fuel Line Replacement - Chassis (Cutaway Van Side Tank)
- Fuel Line Replacement - Chassis (Cargo/Passenger Van)
- Fuel Pressure Sensor Replacement
- Fuel System Cleaning
- Fuel Injection Fuel Rail Assembly Replacement
- Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (LPG 3 Tank)
- Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LPG 3 Tank)
- Fuel Injection Fuel Rail Crossover Tube Replacement
- Fuel Injector Replacement
- Fuel Injector Replacement (LPG 3 Tank)
- Fuel Injector Cleaning
- Evaporative Emission Canister Purge Solenoid Valve Replacement
- Evaporative Emission Canister Vent Solenoid Valve Replacement
- Evaporative Emission System Hose/Pipe Replacement
- Evaporative Emission Line Replacement - Chassis to Canister
- Evaporative Emission Line Replacement - Engine to Chassis
- Evaporative Emission Canister Replacement (Passenger/Cargo Van)
- Evaporative Emission Canister Replacement (Cutaway Van)
- Evaporative Emission System Vacuum Leak Detection Pump Replacement (LPG 3 Tank)
- Evaporative Emission System Cleaning
- Ignition Coil Replacement
- Spark Plug Wire Inspection
- Spark Plug Wire Replacement
- Spark Plug Inspection
- Spark Plug Replacement
- Crankshaft Position Sensor Replacement
- Camshaft Position Sensor Replacement
- Knock Sensor 1 Replacement
- Knock Sensor 2 Replacement
- Air Cleaner Element Replacement
- Air Cleaner Assembly Replacement
- Air Cleaner Resonator Outlet Duct Replacement
- Compressed Natural Gas Fuel Pressure Relief (With CH-48027)
- Compressed Natural Gas Tank Venting
- LPG Fuel Tank Drain Valve Replacement (Passenger Side 3 Tank)
- LPG Fuel Tank Drain Valve Replacement (Drivers Side 3 Tank)
- LPG Tank Drain and Evacuation
- LPG Fuel Line Draining
- LPG Fuel Line Draining (3 Tank Feed and Return)
- CNG High Pressure Shutoff Valve Replacement
- CNG Tank High Pressure Shutoff Valve Solenoid Replacement
- LPG Tank Purge
- Compressed Natural Gas Tank Replacement - Aft Tank
- Compressed Natural Gas Tank Replacement - Cargo Tank
- Compressed Natural Gas Tank Replacement - Midship Tank
- Compressed Natural Gas Tank Cover Replacement - Aft Tank
- Compressed Natural Gas Tank Cover Replacement - Cargo Tank
- Compressed Natural Gas Tank Cover Replacement - Midship Tank
- Compressed Natural Gas Tank Filler Valve Receptacle Replacement
- Compressed Natural Gas Fuel Feed Hose Replacement
- Compressed Natural Gas Fuel Feed Pipe Tee Replacement
- Compressed Natural Gas High Pressure Regulator Filter Replacement
- Compressed Natural Gas High Pressure Regulator Replacement
- Compressed Natural Gas Tank Filler Check Valve Replacement
- Compressed Natural Gas Control Module Replacement
- LPG Tank Replacement (Aft Axle)
- LPG Fuel Tank Shield Replacement (Aft Axle)
- Fuel Gauge Replacement (Aft Axle)
- LPG Fuel Pressure and Temperature Sensor Replacement (3 Tank)
- Liquefied Petroleum Gas Fuel Sender Control Module Replacement (Aft Axle)
- LPG Fuel Tank Fuel Pump Module Replacement (3 Tank)
- LPG Fuel Tank Fuel Pump and Fuel Tank Pressure Sensor Module Solenoid Replacement (Fuel Supply 3 Tank)
- LPG Fuel Tank Fuel Pump and Fuel Tank Pressure Sensor Module Solenoid Replacement (Bypass 3 Tank)
- LPG Tank Pressure Relief Valve Replacement (Aft Axle)
- LPG Fuel Tank Filler Valve Replacement (3 Tank)
- Liquefied Petroleum Gas Distributor Replacement
- LPG Fuel Feed Hose Replacement (Solenoid Valve to Filter 3 Tank)
- LPG Fuel Feed Hose Replacement (Distribution Block to Filter 3 Tank)
- LPG Fuel Return Hose Replacement (Solenoid Valve to Fuel Tank Drain Valve 3 Tank)
- LPG Fuel Return Hose Replacement (Distribution Block to Fuel Tank Drain Valve 3 Tank)
- LPG Tank Filler Hose Replacement (Fill Valve to Filter 3 Tank)
- LPG Tank Filler Hose Replacement (Tank to Filter 3 Tank)
- LPG Fuel Filter Replacement (Feed Hose 3 Tank)
- LPG Fuel Filter Replacement (Fill Hose 3 Tank)
- LPG Tank Filler Valve Receptacle Replacement
- LPG Tank Fill Bleeder Valve Replacement (3 Tank)
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.