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Upper Intake Manifold: Removal

  1. Remove the air cleaner outlet pipe. For additional information, refer to INTAKE AIR DISTRIBUTION AND FILTERING - 3.5L .
  2. Disconnect the throttle body electrical connector.
  3. Disconnect the evaporative emissions (EVAP) tube from the intake manifold. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION .
  4. Disconnect the brake booster vacuum hose from the intake manifold.
  5. Disconnect the positive crankcase ventilation (PCV) tube from the PCV valve.
  6. Disconnect the PCV fitting electrical connector.
  7. Detach the wiring harness retainers from the upper intake manifold.
  8. If equipped, detach the cylinder block heater wiring harness retainer from the upper intake manifold.
  9. Remove the 2 upper intake manifold support bracket bolts.
  10. Remove the 6 bolts and the upper intake manifold.
    • Remove and discard the gaskets.
    • Clean and inspect all of the sealing surfaces of the upper and lower intake manifold.
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