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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G3500, VAN CARGO, 4.8 VREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 2 (ENGINE CONTROL SYSTEM - 6.6L (LLY) - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL INJECTION PUMP REPLACEMENTREMOVAL PROCEDURE
2006 Chevrolet Chevy Express G3500, Van Cargo, 4.8 V

Removal Procedure

2006 Chevrolet Chevy Express G3500, Van Cargo, 4.8 VSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
    Fig 1: Wiring Harness Retainer
    GM1601448Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Disconnect negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure .
  3. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac N Fill) .
  4. Remove the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement .
    5. Fig 2: View Of Left Fuel Rail At Pump Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  5. Remove the center intake manifold. Refer to Intake Manifold Replacement - Center .
    6. Fig 3: View Of Fuel Hose Connections
    GM1335595Courtesy of GENERAL MOTORS CORP.
  6. Reposition the injection pump hose clamps at the fuel line.
  7. Remove the hoses from fuel lines.
    8. Fig 4: View Of Fuel Injection Pump
    GM1336114Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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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.