Installation Procedure

2023 Chevrolet Express 2500 Base, Van Cargo Extended, 4.3L Eng VIN P, GasSECTION Installation Procedure
  1. Intake Manifold - Install - Intake Manifold InstallationΒ 
  2. GM4847171Courtesy of GENERAL MOTORS COMPANY

    Positive Crankcase Ventilation Tube-Left Side (1) - Install - Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Left Side)Β Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Right Side)Β 

  3. Position and connect harness as necessary.
  4. GM4847981Courtesy of GENERAL MOTORS COMPANY

    Vacuum Hose (1) @Intake Manifold - Connect

  5. Engine Cover - Install - Engine Cover Replacement
  6. Manifold Absolute Pressure Sensor - Install - Manifold Absolute Pressure Sensor Replacement
  7. Evaporative Emission Canister Purge Valve - Install - Evaporative Emission Canister Purge Solenoid Valve Replacement
  8. GM4806747Courtesy of GENERAL MOTORS COMPANY

    Throttle Body Assembly (2) - Install - Throttle Body Assembly Replacement

  9. Preform the throttle body idle air flow compensation reset. Throttle Body Idle Air Flow Compensation Reset
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.