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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Mechanical - 4.3L (LV1)) >> Repair Instructions - Off Vehicle >> Intake Manifold Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM2902816Courtesy of GENERAL MOTORS COMPANY

    Remove and discard the intake manifold-to-cylinder head gaskets (1).

  2. GM2902817Courtesy of GENERAL MOTORS COMPANY

    Remove the manifold absolute pressure (MAP) sensor bolt (1), MAP sensor (2), and seal (3).

  3. Remove the evaporative emission (EVAP) canister purge solenoid valve bolt (5), EVAP canister purge solenoid valve (6), and seal (7).
  4. Clean the intake manifold (4) in solvent.
    5. WARNING:

    Refer to Safety Glasses and Compressed Air Warning .

  5. Dry the intake manifold with compressed air.
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