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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 330 (ENGINE MECHANICAL - 2.2L)REMOVAL AND INSTALLATIONUNIT REPAIR CLEANING, INSPECTION, AND SELECTIONINTAKE MANIFOLD CLEAN AND INSPECT (UNIT REPAIR)
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Intake Manifold Clean And Inspect (Unit Repair)

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Intake Manifold Clean And Inspect (Unit Repair)
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean intake manifold mating surfaces.
  2. Inspect intake manifold for damage.
  3. Inspect intake manifold for cracks near compression limiters.
  4. Inspect crankcase ventilation passages in intake manifold face for blockage and clean as necessary.
  5. Clean crankcase ventilation passages with compressed air. Use a maximum of 172 kPa (25 psi) of air pressure.
  6. Replace intake manifold as necessary.
    Fig 1: Cleaning And Inspecting Intake Manifold
    G01039608Courtesy of GENERAL MOTORS CORP.
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.